ARCO Zeus A225/3500W-12V (A225S) High Output Alternator, 3.15" Saddle Mount, Isolated Ground (4011)

By ARCO MarineSold by LFP ExpertsSKU 4011

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Key specs

Units
SKU
4011
Official document
Sources

ARCO prints 4011 as the unit part number of this configuration in its brochure (row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011"); ARCO's product page prints the same part number in its part-number tables.

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier documentOfficial product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Unit Part # column; product page part-number tables

Documented

Pulley
49mm K6 (6 groove)
Official document
Sources

Printed in the Pulley column of the brochure row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011".

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Pulley column for part 4011

Documented

Cooling
Dual cooling fans
Official product page
Sources

Printed as "Dual cooling fans" on ARCO's product page and "Dual Cooling fans" in the brochure's High Output Alternators list, which covers every Zeus high output alternator.

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier documentOfficial document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Product page description, "Coolest operating temperatures" list; brochure, High Output Alternators list

Documented

Maximum speed (RPM)
19,000 RPM
Official product page
Sources

Printed as "Maximum Alt RPM 19,000" in the A225S-12V product page's Technical Specifications.

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Product page, Technical Specifications, Maximum Alt RPM row

Documented

Cut-in speed (RPM)
1,061 RPM
Cut-in speed differs between ARCO's product page and brochure.

ARCO's A225S product page prints "Cut-In RPM 1,061 Alternator RPM"; the brochure's Specifications table prints 1,196 in its A225s-12V column. ARCO's installation manual prints no cut-in speed, and neither document names a revision that supersedes the other.

Official product page
Sources

Printed as "Cut-In RPM 1,061 Alternator RPM" in the A225S-12V product page's Technical Specifications, which cover every part number of the page. The brochure's two-column A225s-12V and A275L-12V table prints "Cut-In Alt. RPM 1,061 1,196"; its column headings do not match the order of its figures, so it is not used for either model.

1,196 RPM

ARCO's brochure Specifications table for the 12V models (page 7) prints two columns, A275L-12V on the left and A225s-12V on the right as laid out on the page (its Stator Size row, 138mm and 130mm, matches each model's own product page); its Cut-In Alt. RPM row prints "1,061 1,196", 1,196 in the A225s-12V column.

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document
Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Product page, Technical Specifications, Cut-In RPM row

Documented

Ground type
Isolated Ground
Official document
Sources

Printed in the Ground Type column of the brochure row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011".

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Ground Type column for part 4011

Documented

Mounting
3.15" Saddle Mount
Official document
Sources

The housing (mount) ARCO's brochure prints for part 4011, row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011"; ground type Isolated Ground, pulley 49mm K6 (6 groove).

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Housing column for part 4011

Documented

Stator size
130 mm5.12 in converted
Official product page
Sources

Printed as "Stator Size 130mm" in the A225S-12V product page's Technical Specifications.

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Product page, Technical Specifications, Stator Size row

Documented

System voltage
12 V
Official document
Sources

Printed as "Voltage 12V" in the product page's Technical Specifications and as the Voltage column of the brochure row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011".

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier documentOfficial product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Voltage column; product page, Technical Specifications, Voltage row

Documented

All specs12
Pulley
49mm K6 (6 groove)
Official document
Sources

Printed in the Pulley column of the brochure row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011".

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Pulley column for part 4011

Documented

Cooling
Dual cooling fans
Official product page
Sources

Printed as "Dual cooling fans" on ARCO's product page and "Dual Cooling fans" in the brochure's High Output Alternators list, which covers every Zeus high output alternator.

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier documentOfficial document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Product page description, "Coolest operating temperatures" list; brochure, High Output Alternators list

Documented

Maximum speed (RPM)
19,000 RPM
Official product page
Sources

Printed as "Maximum Alt RPM 19,000" in the A225S-12V product page's Technical Specifications.

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Product page, Technical Specifications, Maximum Alt RPM row

Documented

Cut-in speed (RPM)
1,061 RPM
Cut-in speed differs between ARCO's product page and brochure.

ARCO's A225S product page prints "Cut-In RPM 1,061 Alternator RPM"; the brochure's Specifications table prints 1,196 in its A225s-12V column. ARCO's installation manual prints no cut-in speed, and neither document names a revision that supersedes the other.

Official product page
Sources

Printed as "Cut-In RPM 1,061 Alternator RPM" in the A225S-12V product page's Technical Specifications, which cover every part number of the page. The brochure's two-column A225s-12V and A275L-12V table prints "Cut-In Alt. RPM 1,061 1,196"; its column headings do not match the order of its figures, so it is not used for either model.

1,196 RPM

ARCO's brochure Specifications table for the 12V models (page 7) prints two columns, A275L-12V on the left and A225s-12V on the right as laid out on the page (its Stator Size row, 138mm and 130mm, matches each model's own product page); its Cut-In Alt. RPM row prints "1,061 1,196", 1,196 in the A225s-12V column.

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document
Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Product page, Technical Specifications, Cut-In RPM row

Documented

Ground type
Isolated Ground
Official document
Sources

Printed in the Ground Type column of the brochure row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011".

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Ground Type column for part 4011

Documented

Mounting
3.15" Saddle Mount
Official document
Sources

The housing (mount) ARCO's brochure prints for part 4011, row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011"; ground type Isolated Ground, pulley 49mm K6 (6 groove).

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Housing column for part 4011

Documented

Stator size
130 mm5.12 in converted
Official product page
Sources

Printed as "Stator Size 130mm" in the A225S-12V product page's Technical Specifications.

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Product page, Technical Specifications, Stator Size row

Documented

System voltage
12 V
Official document
Sources

Printed as "Voltage 12V" in the product page's Technical Specifications and as the Voltage column of the brochure row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011".

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier documentOfficial product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Voltage column; product page, Technical Specifications, Voltage row

Documented

Regulator included
Internal or External
Regulation differs between ARCO's brochure and product page.

ARCO's brochure prints part 4011 as Internal or External; ARCO's product page and store option print it as External Only. Neither names a revision that supersedes the other.

Official document
Sources

ARCO's brochure prints the regulation of part 4011 as "Internal or External" (row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011"). The product page explains: "Internally regulated with adaptor for optional external regulation.". A regulator is not part of an External Only unit; ARCO names its Zeus Bluetooth regulator for these.

External Only

Printed as "4011 12V 225A DF315, Side Battery Post, Externally Regulated, Isolated Ground, 49mm K6 Pulley" on ARCO's product page; ARCO's store option for SKU 4011 also reads "External Only", and LFP Experts' option reads "3.15 J180 / External Only / Isolated Ground".

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document
Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Regulation column for part 4011; product page, Regulation notes

Documented

Rated output current
254 A
Official document
Sources

The maximum output current ARCO prints for part 4011: its brochure's A225s-12V DETAILS table row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011" (Maximum Output column 254), and the product page's Technical Specifications row "Max Output (Cold, 9,000 RPM) 254 Amps". Maximum output is the cold figure at 9,000 alternator RPM. The product page prints "Sustained Cruising Output (Hot, 6,000 RPM) 187 Amps" and "Sustained Idle Output (Hot, 3,000 RPM) 157 Amps". ARCO says "cold" testing was done at 71 °F and measures "hot" output after 60 minutes at 3,000 RPM under a plexiglass shield.

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier documentOfficial product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, row for part 4011; product page, Technical Specifications, Max Output row

Documented

Operating temperature
110 M °C
Official document
Sources

The product page prints no operating temperature; the brochure's two-column A225s-12V and A275L-12V Specifications print "Max Continuous Operating Temperature 110°C/230°F 110°C/230°F", the same figure for both models. ARCO prints a maximum continuous operating temperature only, no lower limit.

Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier document

Location: Brochure, A275L-12V and A225s-12V Specifications, Max Continuous Operating Temperature row

Documented

Sustained output current
157 A
Sustained idle output differs within ARCO's product page.

ARCO's brochure and the product page's Technical Specifications print 157 A sustained idle output for the A225S; the page's SKU Details table prints 187 A for part 4011.

Official document
Sources

The sustained idle output ARCO prints for part 4011: the brochure row "12V 254 157 3.15" Saddle Mount Internal or External Isolated Ground 49mm K6 (6 groove) 4011" (Sustained Idle Output column 157; its footnote reads "*3,000 alternator RPM sustained under load and hot conditions for 1 hour.") and the product page's "Sustained Idle Output (Hot, 3,000 RPM) 157 Amps". The page also prints "Sustained Cruising Output (Hot, 6,000 RPM) 187 Amps". ARCO measures "hot" output after the alternator has run 60 minutes at 3,000 RPM under a plexiglass shield.

187 A

The product page's SKU Details table prints "12V 254 187" (Sustained Idle Output 187 A) for every A225S part number, including 4011; 187 A is the figure its Technical Specifications give for sustained cruising output.

Official product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document
Official document: ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) Rev 1001 Cat 1 Rev A · Checked · Earlier documentOfficial product page: ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture) Checked · Earlier document

Location: Brochure, A225s-12V DETAILS table, Sustained Idle Output column for part 4011; product page, Technical Specifications, Sustained Idle Output row

Documented

Published claims and calculations, not independent test results.

Documents

2 on file
  • PDF
    ARCO Zeus Alternator Installation Guide 2025 (TECH-001 REV-B 8/18/25, arcomarine.com, October 29, 2026 capture)OfficialARCO MarineOfficial installation manualAugust 18, 2025
    Source details
    Revision
    TECH-001 REV-B
    Revision date
    August 18, 2025

    Archived copy captured on 2026-10-29.

    Location: Pages 1 to 5

    Retrieved

    ARCO Marine's installation manual for its Zeus high output alternators (wiring connections, ground terminal and temperature sensor mounting for Isolated Ground and Case Ground units, Internal/External (IE) and External Only (EX) wiring, connector kit, warranty registration offer), captured October 29, 2026. ARCO's Zeus support documents page links this one file as the installation guide of each of the A225s-12V, A275L-12V, A4000-24V LTO, A7000-24V and A8000-48V alternators. It prints no output, speed, weight or size figures, so those come from ARCO's brochure and product pages. Manufacturer instructions, not independent tests.

    Archived copies

    Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup TECH-001 REV-B · 1.25 MB

    Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-001_ARCO_Zeus_Alternator_Installation_Guide_2025.pdf?v=1755639945. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source

    Printed revision date: 2025-08-18

    Pages
    5
    Embedded creation date
    Embedded modification date

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 05f87c20ba4e278c32ffaea733ce3ea7d7eb18307aa6882fbf209612f72d200b

    Open
  • PDF
    ARCO Zeus High Energy Collection brochure (file The_ARCO_Zeus_Collection_Brochure.pdf, arcomarine.com, October 29, 2026 capture)OfficialARCO MarineOfficial document
    Source details
    Revision
    1001 Cat 1 Rev A
    Revision date
    Not stated

    Archived copy captured on 2026-10-29.

    Location: Per-model "DETAILS" part-number tables and "Specifications" tables

    Retrieved

    ARCO Marine's Zeus High Energy Collection brochure as linked from its Zeus support documents page under each Zeus model ("ARCO Zeus High Energy Collection Brochure"), captured October 29, 2026. A separate file from the v2 brochure the records already cite (the v2 file, "The_ARCO_Zeus_Collection_Brochure_v2"); its text is the same except the 24V Specifications table's Sustained Idle Output row, which here prints "2,970 Watts 108 Amps 4.2 kW PTO 1,375 Watts 50 Amps 2 kW PTO" (A4000-24V LTO and A7000-24V) where v2 prints 115 A for both. Neither file prints a date, so neither is taken to replace the other. Manufacturer claims, not independent tests.

    Archived copies

    Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 5.80 MB

    Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/The_ARCO_Zeus_Collection_Brochure.pdf?v=1743020364. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    16
    Embedded creation date
    Embedded modification date

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 323c2ce474b77a5965481cae94d03279b51bbd2c42c5523fa78ea163c3e46dd2

    Open

Archive and older revisions

Archive and older revisions6

Earlier revisions, archived captures and copies published by someone other than the manufacturer. Every one stays reachable.

  • PDF
    ARCO Zeus Alternator & Regulator OEM Troubleshooting Guide (TECH-002 REV-A 7/31/25, arcomarine.com, October 29, 2026 capture)OfficialARCO MarineOfficial instruction manualJuly 31, 2025
    Source details
    Revision
    TECH-002 REV-A
    Revision date
    July 31, 2025

    Archived copy captured on 2026-10-29.

    Location: Pages 1 to 4

    Retrieved

    ARCO Marine's troubleshooting guide for a Zeus alternator run by the Zeus Bluetooth regulator (initial checks, regulator power, battery current and CAN data, engine RPM, alternator charging, and the regulator harness pin tables), captured October 29, 2026. ARCO's Zeus support documents page links it under each of the A275L-12V, A225s-12V, A4000-24V LTO, A7000-24V and A8000-48V alternators. It names no part number. The file also carries hidden text of ARCO's Sprinter installation instructions that its printed pages do not show; only the printed pages are read. Manufacturer instructions, not independent tests.

    Archived copies

    Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup TECH-002 REV-A · 0.47 MB

    Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-002_ARCO_Zeus_Alternator_Regulator_OEM_Troubleshooting_Guide.pdf?v=1755639958. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source

    Printed revision date: 2025-07-31

    Pages
    4
    Embedded creation date
    Embedded modification date

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 0ce102370b5e46fc3fd079911a3cf91fa4dbe4efa79db6ebc2931d11468f7c1b

    Open
  • PDF
    ARCO Zeus Installation Audit v1.0 (TECH-004 REV-A 7/31/2025, arcomarine.com, October 29, 2026 capture)OfficialARCO MarineOfficial instruction manualJuly 31, 2025
    Source details
    Revision
    TECH-004 REV-A
    Revision date
    July 31, 2025

    Archived copy captured on 2026-10-29.

    Location: Pages 1 and 2

    Retrieved

    ARCO Marine's blank checklist for a Zeus alternator and Bluetooth regulator installation before it is powered on (battery/control and alternator harness checks, the in-line fuse size of the positive cable it prints for the A225-12V, A275-12V, A4000-24V, A7000-24V and A8000-48V, and notes), captured October 29, 2026. A blank checklist, not a completed inspection, a test report or a certificate. ARCO's support documents page links it under each Zeus alternator and the regulator. The file also carries hidden text of ARCO's Sprinter installation instructions that its printed pages do not show; only the printed pages are read.

    Archived copies

    Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup TECH-004 REV-A · 0.18 MB

    Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-004_ARCO_Zeus_Installation_Audit_v1.0.pdf?v=1755639979. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source

    Printed revision date: 2025-07-31

    Pages
    2
    Embedded creation date
    Embedded modification date

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: c0ee99cd6ee4a53c801a035e043ed937662060bd7d423672e9aa22c95fb9d41c

    Open
  • PDF
    High Output Alternator Performance Testing (ARCO Marine, "Updated: 5/10/2024", arcomarine.com, October 29, 2026 capture)OfficialARCO MarineOfficial document
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-29.

    Location: Pages 5 to 17

    Retrieved

    ARCO's own test results, a maker claim, not independent testing: ARCO Marine's report of its in-house tests ("Testing Performed by ARCO Marine", "Updated: 5/10/2024") of an ARCO Zeus A275L-12 and an A225s-12 beside Balmar, Nations and Mechman alternators, linked from ARCO's A275L product page as "ARCO Zeus High Output Alternator Performance Testing", captured October 29, 2026. It names no part number, and its figures are measurements of the units ARCO tested (its summary table marks the A225S weight "Prototype"), so none is recorded as a specification of any part.

    Archived copies

    Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 4.57 MB

    Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/ARCO_Zeus_High_Output_Alternator_Testing_Results_93023fc1-b11e-4181-9ad0-8b24e3e4ccca.pdf?v=1729633064.pdf. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    21
    Embedded creation date
    Embedded modification date

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 7a58326354f4d86c79bc28d36d4c728d5952f6e2638ae0bb3058c5835964088c

    Open
  • PDF
    ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture)OfficialARCO MarineOfficial document
    Source details
    Revision
    1001 Cat 1 Rev A
    Revision date
    Not stated

    Archived copy captured on 2026-10-27.

    Location: Per-model "DETAILS" part-number tables, "Specifications" tables and "APPLICATIONS" tables

    Retrieved

    ARCO Marine's own brochure for the Zeus regulator and the A225s-12V, A275L-12V, A4000-24V LTO, A7000-24V and A8000-48V alternators, linked from each product page under "Support and Downloads", captured October 27, 2026 (the file prints no date; its back page prints "1001 Cat 1 Rev A"). It prints the specifications, the per-part-number tables (voltage, maximum and sustained idle output, housing, regulation, ground type, pulley) and the applications. Manufacturer claims, not independent tests. ARCO's installation manual for the alternators (TECH-001) prints no figures, so the figures come from this brochure and the product pages.

    Archived copies

    Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup Revision not recorded · 5.70 MB

    Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/The_ARCO_Zeus_Collection_Brochure_v2_488a3d13-7f71-461e-8999-4f88397839fc.pdf?v=1762453970. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source
    Pages
    16

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: 3c5924a1d427a7494ed31b5ce963991142290ef42ca68e4a6e238927bd1cdf8e

    Open
  • WEB
    ARCO Marine product page: ARCO Zeus A225/3500W-12V (A225S) High Output Alternator (arcomarine.com, October 27, 2026 capture)OfficialARCO MarineOfficial product page
    Source details
    Revision
    Not stated
    Revision date
    Not stated

    Archived copy captured on 2026-10-27.

    Location: "Technical Specifications", "Mounting Options and Applications", "Cross-Reference" and "SKU Details" sections

    Retrieved

    ARCO Marine's own store page for the ARCO Zeus A225/3500W-12V (A225S) High Output Alternator, captured October 27, 2026: the description, the "Technical Specifications" table, the mounting and part-number tables and the "SKU Details" table. Manufacturer claims, not independent tests. Sales text is used only for what it prints about the product.

    Open
  • PDF
    ARCO Zeus High Output Alternator Wiring Connection Instructions (TECH001 - REV001 7/31/25, arcomarine.com, October 29, 2026 capture)OfficialARCO MarineOfficial documentJuly 31, 2025
    Source details
    Revision
    TECH001 - REV001
    Revision date
    July 31, 2025

    Archived copy captured on 2026-10-29.

    Location: Pages 1 to 6

    Retrieved

    ARCO Marine's wiring connection instructions for its Zeus high output alternators (temperature sensor mounts for Isolated Ground and Case Ground units, output and ground terminals with torque settings, Internal/External (IE) and External Only (EX) wiring, Weather Pack connector kit), linked from ARCO's Zeus support documents page, captured October 29, 2026; it says "All ARCO Zeus high output alternators have a specific mounting point" for the temperature sensor. Its last page prints "TECH001 - REV001 7/31/25"; it is a different document from the installation guide TECH-001 REV-B 8/18/25 the records already cite, and the two are not merged. Its first page offers an extra year of parts warranty if the alternator is registered within 30 days, on the printed terms; that offer is not recorded as a warranty. Manufacturer instructions, not independent tests.

    Archived copies

    Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

    Archived backup TECH001 - REV001 · 1.35 MB

    Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/ARCO_Zeus_Alternator_insert_2025_V3.pdf?v=1754409647. Copyright and takedown

    Source first found
    This copy captured
    Archived
    File detailsOriginal source

    Printed revision date: 2025-07-31

    Pages
    6
    Embedded creation date
    Embedded modification date

    Embedded dates are file metadata, not independent proof of publication.

    SHA-256: c9198edfb71464addc27ef6fc8ce4c96ec083b8b28df9863d753c5ad2b7e528e

    Open

Archived documents

ARCO Zeus Alternator Installation Guide 2025 (TECH-001 REV-B 8/18/25, arcomarine.com, October 29, 2026 capture)

Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup TECH-001 REV-B · 1.25 MB

Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-001_ARCO_Zeus_Alternator_Installation_Guide_2025.pdf?v=1755639945. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source

Printed revision date: 2025-08-18

Pages
5
Embedded creation date
Embedded modification date

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 05f87c20ba4e278c32ffaea733ce3ea7d7eb18307aa6882fbf209612f72d200b

ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture)

Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 5.70 MB

Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/The_ARCO_Zeus_Collection_Brochure_v2_488a3d13-7f71-461e-8999-4f88397839fc.pdf?v=1762453970. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
16

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 3c5924a1d427a7494ed31b5ce963991142290ef42ca68e4a6e238927bd1cdf8e

ARCO Zeus High Output Alternator Wiring Connection Instructions (TECH001 - REV001 7/31/25, arcomarine.com, October 29, 2026 capture)

Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup TECH001 - REV001 · 1.35 MB

Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/ARCO_Zeus_Alternator_insert_2025_V3.pdf?v=1754409647. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source

Printed revision date: 2025-07-31

Pages
6
Embedded creation date
Embedded modification date

Embedded dates are file metadata, not independent proof of publication.

SHA-256: c9198edfb71464addc27ef6fc8ce4c96ec083b8b28df9863d753c5ad2b7e528e

ARCO Zeus Alternator & Regulator OEM Troubleshooting Guide (TECH-002 REV-A 7/31/25, arcomarine.com, October 29, 2026 capture)

Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup TECH-002 REV-A · 0.47 MB

Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-002_ARCO_Zeus_Alternator_Regulator_OEM_Troubleshooting_Guide.pdf?v=1755639958. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source

Printed revision date: 2025-07-31

Pages
4
Embedded creation date
Embedded modification date

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 0ce102370b5e46fc3fd079911a3cf91fa4dbe4efa79db6ebc2931d11468f7c1b

ARCO Zeus Installation Audit v1.0 (TECH-004 REV-A 7/31/2025, arcomarine.com, October 29, 2026 capture)

Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup TECH-004 REV-A · 0.18 MB

Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-004_ARCO_Zeus_Installation_Audit_v1.0.pdf?v=1755639979. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source

Printed revision date: 2025-07-31

Pages
2
Embedded creation date
Embedded modification date

Embedded dates are file metadata, not independent proof of publication.

SHA-256: c0ee99cd6ee4a53c801a035e043ed937662060bd7d423672e9aa22c95fb9d41c

ARCO Zeus High Energy Collection brochure (file The_ARCO_Zeus_Collection_Brochure.pdf, arcomarine.com, October 29, 2026 capture)

Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 5.80 MB

Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/The_ARCO_Zeus_Collection_Brochure.pdf?v=1743020364. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
16
Embedded creation date
Embedded modification date

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 323c2ce474b77a5965481cae94d03279b51bbd2c42c5523fa78ea163c3e46dd2

High Output Alternator Performance Testing (ARCO Marine, "Updated: 5/10/2024", arcomarine.com, October 29, 2026 capture)

Archived copy of a document published by ARCO Marine. Copyright retained by the publisher; kept for reference and verification only, no endorsement implied. To ask for its removal, email legal@chargedreviews.com.

Archived backup Revision not recorded · 4.57 MB

Archived copy, unaltered, kept as a record of what ARCO Marine published. Original address: https://cdn.shopify.com/s/files/1/0110/9521/2098/files/ARCO_Zeus_High_Output_Alternator_Testing_Results_93023fc1-b11e-4181-9ad0-8b24e3e4ccca.pdf?v=1729633064.pdf. Copyright and takedown

Source first found
This copy captured
Archived
File detailsOriginal source
Pages
21
Embedded creation date
Embedded modification date

Embedded dates are file metadata, not independent proof of publication.

SHA-256: 7a58326354f4d86c79bc28d36d4c728d5952f6e2638ae0bb3058c5835964088c

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Sellers

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LFP Experts

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Listing SKU 4011

$877.80Recorded
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Price history

$877.80

Prices we read at LFP Experts · 14 readings · no change in our readings since

Chart, listings & data

Since · Listing price (USD)

View listing at LFP Experts Paid link.
$800$850$900$950LFP Experts: $877.80 · Oct 27, 2026LFP Experts: $877.80 · Oct 30, 2026, 1:26 AM PDTLFP Experts: $877.80 · Oct 31, 2026, 1:27 AM PDTLFP Experts: $877.80 · Nov 1, 2026, 1:07 AM PDTLFP Experts: $877.80 · Nov 2, 2026, 1:36 AM PSTLFP Experts: $877.80 · Nov 3, 2026, 1:06 AM PSTLFP Experts: $877.80 · Nov 4, 2026, 1:15 AM PSTLFP Experts: $877.80 · Nov 5, 2026, 1:15 AM PSTLFP Experts: $877.80 · Nov 6, 2026, 1:15 AM PSTLFP Experts: $877.80 · Nov 7, 2026, 1:17 AM PSTLFP Experts: $877.80 · Nov 8, 2026, 1:16 AM PSTLFP Experts: $877.80 · Nov 9, 2026, 1:16 AM PSTLFP Experts: $877.80 · Nov 10, 2026, 1:06 AM PSTLFP Experts: $877.80 · Nov 12, 2026, 1:26 AM PSTOct 26, 2026Nov 12, 2026
LFP Experts$877.80Nov 12, 2026, 1:26 AM PSTLatest check · hover or tap for earlier prices

A break in a line is a gap in our readings: no price is drawn for days we did not read.

Price data
Collected price observations by seller
Checked (UTC)SellerPrice
Oct 27, 2026LFP Experts Paid link.$877.80
Oct 30, 2026, 1:26 AM PDTLFP Experts Paid link.$877.80
Oct 31, 2026, 1:27 AM PDTLFP Experts Paid link.$877.80
Nov 1, 2026, 1:07 AM PDTLFP Experts Paid link.$877.80
Nov 2, 2026, 1:36 AM PSTLFP Experts Paid link.$877.80
Nov 3, 2026, 1:06 AM PSTLFP Experts Paid link.$877.80
Nov 4, 2026, 1:15 AM PSTLFP Experts Paid link.$877.80
Nov 5, 2026, 1:15 AM PSTLFP Experts Paid link.$877.80
Nov 6, 2026, 1:15 AM PSTLFP Experts Paid link.$877.80
Nov 7, 2026, 1:17 AM PSTLFP Experts Paid link.$877.80
Nov 8, 2026, 1:16 AM PSTLFP Experts Paid link.$877.80
Nov 9, 2026, 1:16 AM PSTLFP Experts Paid link.$877.80
Nov 10, 2026, 1:06 AM PSTLFP Experts Paid link.$877.80
Nov 12, 2026, 1:26 AM PSTLFP Experts Paid link.$877.80

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Model history

Model identity

Model
4011

Manufacturer SKU 4011

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