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ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator, N62 Clutch Pulley, External Only, Case Ground (4404)
Model: 4404 · SKU: 4404
Prepared Nov 12, 2026
Common specifications
| Rated output current | 144 ASource [2, 3] |
|---|---|
| Sustained output current | |
| System voltage | 24 VSource [2, 3] |
| Rotation | Not documented |
| Ground type | Case GroundSource [2] |
| Mounting | N62 Clutch PulleySource [2] |
| Pulley | 50mm K6 (6 groove)Source [2] |
| Cut-in speed (RPM) | 1,072 RPMSource [3] |
| Maximum speed (RPM) | 19,000 RPMSource [3] |
| Stator size | |
| Regulator included | External OnlySource [2, 3] |
| Cooling | Dual cooling fansSource [2, 3] |
| Efficiency | Not documented |
| Operating temperature | 100 M °CSource [3] |
| Weight | |
| Dimensions | Not documented |
| Enclosure volume | Not documented |
| Warranty term | Not documented |
All recorded specifications
| Cooling | Dual cooling fansDocumented claim ConditionsPrinted 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. Location: Product page description, "Coolest operating temperatures" list; brochure, High Output Alternators list 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. Location: Product page description, "Coolest operating temperatures" list; brochure, High Output Alternators list Official product page · ARCO Marine product page: ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator (arcomarine.com, October 27, 2026 capture)Official document · ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) [2, 3] |
|---|---|
| Cut-in speed (RPM) | 1,072 RPMDocumented claim ConditionsPrinted as "Cut-In RPM 1,072 Alternator RPM" in the A4000-24V LTO product page's Technical Specifications, which cover every part number of the page. Location: Product page, Technical Specifications, Cut-In RPM row Printed as "Cut-In RPM 1,072 Alternator RPM" in the A4000-24V LTO product page's Technical Specifications, which cover every part number of the page. Location: Product page, Technical Specifications, Cut-In RPM row |
| Ground type | Case GroundDocumented claim ConditionsPrinted in the Ground Type column of the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404". Location: Brochure, A4000-24V LTO DETAILS table, Ground Type column for part 4404 Printed in the Ground Type column of the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404". Location: Brochure, A4000-24V LTO DETAILS table, Ground Type column for part 4404 |
| Maximum speed (RPM) | 19,000 RPMDocumented claim ConditionsPrinted as "Maximum Alt RPM 19,000" in the A4000-24V LTO product page's Technical Specifications. Location: Product page, Technical Specifications, Maximum Alt RPM row Printed as "Maximum Alt RPM 19,000" in the A4000-24V LTO product page's Technical Specifications. Location: Product page, Technical Specifications, Maximum Alt RPM row |
| Mounting | N62 Clutch PulleyDocumented claim ConditionsThe housing (mount) ARCO's brochure prints for part 4404, row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404"; ground type Case Ground, pulley 50mm K6 (6 groove). The brochure marks this housing "**", its footnote "**Mercedes Upfitter Compliant." Location: Brochure, A4000-24V LTO DETAILS table, Housing column for part 4404 The housing (mount) ARCO's brochure prints for part 4404, row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404"; ground type Case Ground, pulley 50mm K6 (6 groove). The brochure marks this housing "**", its footnote "**Mercedes Upfitter Compliant." Location: Brochure, A4000-24V LTO DETAILS table, Housing column for part 4404 |
| Operating temperature | 100 M °CDocumented claim ConditionsPrinted as "Max Continuous Operating Temperature 100°C" with its Fahrenheit figure in the product page's Technical Specifications; ARCO prints a maximum continuous operating temperature only, no lower limit. Location: Product page, Technical Specifications, Max Continuous Operating Temperature row Printed as "Max Continuous Operating Temperature 100°C" with its Fahrenheit figure in the product page's Technical Specifications; ARCO prints a maximum continuous operating temperature only, no lower limit. Location: Product page, Technical Specifications, Max Continuous Operating Temperature row |
| Pulley | 50mm K6 (6 groove)Documented claim ConditionsPrinted in the Pulley column of the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404". Location: Brochure, A4000-24V LTO DETAILS table, Pulley column for part 4404 Printed in the Pulley column of the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404". Location: Brochure, A4000-24V LTO DETAILS table, Pulley column for part 4404 |
| Rated output current | 144 ADocumented claim ConditionsThe maximum output current ARCO prints for part 4404: its brochure's A4000-24V LTO DETAILS table row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404" (Maximum Output column 3,960 (144)), and the product page's Technical Specifications row "Max Output (Cold, 9,000 RPM) at 27.5V 144 Amps - 3,960 Watts". Maximum output is the cold figure at 9,000 alternator RPM. The product page prints "Sustained Cruising Output (Hot, 6,000 RPM) at 27.5V 130 Amps" and "Sustained Idle Output (Hot, 3,000 RPM) at 27.5V 108 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. Location: Brochure, A4000-24V LTO DETAILS table, row for part 4404; product page, Technical Specifications, Max Output row The maximum output current ARCO prints for part 4404: its brochure's A4000-24V LTO DETAILS table row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404" (Maximum Output column 3,960 (144)), and the product page's Technical Specifications row "Max Output (Cold, 9,000 RPM) at 27.5V 144 Amps - 3,960 Watts". Maximum output is the cold figure at 9,000 alternator RPM. The product page prints "Sustained Cruising Output (Hot, 6,000 RPM) at 27.5V 130 Amps" and "Sustained Idle Output (Hot, 3,000 RPM) at 27.5V 108 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. Location: Brochure, A4000-24V LTO DETAILS table, row for part 4404; product page, Technical Specifications, Max Output row Official document · ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture)Official product page · ARCO Marine product page: ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator (arcomarine.com, October 27, 2026 capture) [2, 3] |
| Regulator included | External OnlyDocumented claim ConditionsARCO's brochure prints the regulation of part 4404 as "External Only" (row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404"). The product page explains: "These units will come with a terminal block and a P-Type harness. They will only work with an external regulator". A regulator is not part of an External Only unit; ARCO names its Zeus Bluetooth regulator for these. Location: Brochure, A4000-24V LTO DETAILS table, Regulation column for part 4404; product page, Regulation notes ARCO's brochure prints the regulation of part 4404 as "External Only" (row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404"). The product page explains: "These units will come with a terminal block and a P-Type harness. They will only work with an external regulator". A regulator is not part of an External Only unit; ARCO names its Zeus Bluetooth regulator for these. Location: Brochure, A4000-24V LTO DETAILS table, Regulation column for part 4404; product page, Regulation notes Official document · ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture)Official product page · ARCO Marine product page: ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator (arcomarine.com, October 27, 2026 capture) [2, 3] |
| Stator size | 138 mm5.43 in convertedDocumented claim ConditionsPrinted as "Stator Size 138mm" in the A4000-24V LTO product page's Technical Specifications. Location: Product page, Technical Specifications, Stator Size row Printed as "Stator Size 138mm" in the A4000-24V LTO product page's Technical Specifications. Location: Product page, Technical Specifications, Stator Size row |
| Sustained output current | 108 ANeeds confirmationARCO's brochure part-number table and product page print 108 A for part 4404; the brochure's 24V Specifications table prints 115 A for both 24V models. Neither names a revision that supersedes the other. ConditionsThe sustained idle output ARCO prints for part 4404: the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404" (Sustained Idle Output column 2,970 (108); 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) at 27.5V 108 Amps". The page also prints "Sustained Cruising Output (Hot, 6,000 RPM) at 27.5V 130 Amps". ARCO measures "hot" output after the alternator has run 60 minutes at 3,000 RPM under a plexiglass shield. Location: Brochure, A4000-24V LTO DETAILS table, Sustained Idle Output column for part 4404; product page, Technical Specifications, Sustained Idle Output row The sustained idle output ARCO prints for part 4404: the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404" (Sustained Idle Output column 2,970 (108); 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) at 27.5V 108 Amps". The page also prints "Sustained Cruising Output (Hot, 6,000 RPM) at 27.5V 130 Amps". ARCO measures "hot" output after the alternator has run 60 minutes at 3,000 RPM under a plexiglass shield. Location: Brochure, A4000-24V LTO DETAILS table, Sustained Idle Output column for part 4404; product page, Technical Specifications, Sustained Idle Output row Official document · ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture)Official product page · ARCO Marine product page: ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator (arcomarine.com, October 27, 2026 capture) [2, 3] |
| System voltage | 24 VDocumented claim ConditionsPrinted as "Voltage 24V" in the product page's Technical Specifications and as the Voltage column of the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404". Location: Brochure, A4000-24V LTO DETAILS table, Voltage column; product page, Technical Specifications, Voltage row Printed as "Voltage 24V" in the product page's Technical Specifications and as the Voltage column of the brochure row "24V 3,960 (144) 2,970 (108) N62 Clutch Pulley** External Only Case Ground 50mm K6 (6 groove) 4404". Location: Brochure, A4000-24V LTO DETAILS table, Voltage column; product page, Technical Specifications, Voltage row Official document · ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture)Official product page · ARCO Marine product page: ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator (arcomarine.com, October 27, 2026 capture) [2, 3] |
| Weight | 7.2 kg16 lb convertedDocumented claim ConditionsPrinted as "Weight of heaviest option (N62 with clutch pulley) 15.89 lbs / 7.2 kg" on ARCO's product page and in the brochure; this record is the N62 clutch-pulley part the row names. Location: Product page, Technical Specifications, Weight row; brochure Specifications Printed as "Weight of heaviest option (N62 with clutch pulley) 15.89 lbs / 7.2 kg" on ARCO's product page and in the brochure; this record is the N62 clutch-pulley part the row names. Location: Product page, Technical Specifications, Weight row; brochure Specifications Official product page · ARCO Marine product page: ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator (arcomarine.com, October 27, 2026 capture)Official document · ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture) [2, 3] |
Warranty
Certificate records
No records documented.
Sources and revisions
- ARCO Zeus Alternator Installation Guide 2025 (TECH-001 REV-B 8/18/25, arcomarine.com, October 29, 2026 capture)Official installation manual · Revision TECH-001 REV-B · 2025-08-18 · Checked https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-001_ARCO_Zeus_Alternator_Installation_Guide_2025.pdf?v=1755639945
- ARCO Zeus High Energy Collection brochure: Bluetooth Alternator Regulator & High Output Alternators (v2, arcomarine.com, October 27, 2026 capture)Official document · Revision 1001 Cat 1 Rev A · Checked 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
- ARCO Marine product page: ARCO Zeus A4000-24V Low Turn On (LTO) High Output Alternator (arcomarine.com, October 27, 2026 capture)Official product page · Checked https://arcomarine.com/products/arco-zeus-24-volt-4kw-low-turn-on-lto-high-output-alternator
- ARCO Zeus High Output Alternator Wiring Connection Instructions (TECH001 - REV001 7/31/25, arcomarine.com, October 29, 2026 capture)Official document · Revision TECH001 - REV001 · 2025-07-31 · Checked https://cdn.shopify.com/s/files/1/0110/9521/2098/files/ARCO_Zeus_Alternator_insert_2025_V3.pdf?v=1754409647
- ARCO Zeus Alternator & Regulator OEM Troubleshooting Guide (TECH-002 REV-A 7/31/25, arcomarine.com, October 29, 2026 capture)Official instruction manual · Revision TECH-002 REV-A · 2025-07-31 · Checked https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-002_ARCO_Zeus_Alternator_Regulator_OEM_Troubleshooting_Guide.pdf?v=1755639958
- ARCO Zeus Installation Audit v1.0 (TECH-004 REV-A 7/31/2025, arcomarine.com, October 29, 2026 capture)Official instruction manual · Revision TECH-004 REV-A · 2025-07-31 · Checked https://cdn.shopify.com/s/files/1/0110/9521/2098/files/TECH-004_ARCO_Zeus_Installation_Audit_v1.0.pdf?v=1755639979
- ARCO Zeus High Energy Collection brochure (file The_ARCO_Zeus_Collection_Brochure.pdf, arcomarine.com, October 29, 2026 capture)Official document · Revision 1001 Cat 1 Rev A · Checked https://cdn.shopify.com/s/files/1/0110/9521/2098/files/The_ARCO_Zeus_Collection_Brochure.pdf?v=1743020364