ARCO Zeus High Output Alternator - 4kW - 24V
If Optimal Charging at Low Speed is Important to You, This is the Perfect Alternator for You
High Output / High Amperage Alternator: The Highest Power Output in Its Class
Note: If fast idle charging is important to you, view our ARCO Zeus 24V 7kW High Amperage Alternator.
24V Advantage - Low Turn On (LTO)
The ARCO Zeus A4000-24V LTO alternator turns on at lower RPMs, runs cooler and provides more power than older designs that are larger and heavier. This alternator continuously generates over 1.4kW (51 Amps) at just under 1,500 RPM, and almost 2.4kW (87 Amps) at 2,000 Alternator RPM. Put in real world terms, a marine diesel engine idling at 750 RPM with a 2:1 pulley ratio is generating over 1.5kW (55 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 2.5kW (91 Amps)!
Best-in-Class Performance
The ARCO Zeus A4000-24V alternator turns on at lower RPMs, runs cooler and provides more power than older designs that are larger and heavier. The newest generation of 24V performance has arrived.
True 24V Alternators
Competitor’s 24V alternators utilize a 12V rotor and field current which is less efficient and limits output at all RPMs. ARCO utilizes a native 24V rotor and field current. This results in our 24V alternator running cooler than competitor’s 24V alternators, having a direct impact on alternator lifespan.
ARCO Zeus 24V High Amperage Alternators, A4000-24V LTO or A7000-24V: Which One's Right for You?
Choose A4000-24V LTO if:
- You prioritise charging at idle (at campsite or anchor)
- You need to limit power take-off i.e. smaller engine
- You are willing to trade some top-end output for increased output
at low RPM. - Replace your noisy generator!
- Engineered for high energy production.
- Suitable for marine, RV, military, and commercial applications.
- Rapidly charges large battery banks.
- Coolest operating temperatures for increased performance:
- Heat shedding coatings
- Rectifier located on housing exterior
- Dual cooling fans
- OEM components
- Optimized for performance at cruising speeds.
- Reduces the need for a generator by creating additional power with your engine.
- Unleash peak performance with E-Coat/Cerakote, keeping the high amp alternator cooler for sustained amperage output.
- For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator.
- SAE J1171 Certified.
- Proudly made in the U.S.A.
Technical Specifications
| Voltage | 24V |
| Field Type | P |
| Rotor Poles | 16 |
| Rotator Source Voltage | 24V |
| Stator Size | 138mm |
| Frame Size | Large |
| Weight of heaviest option (N62 with clutch pulley) | 15.89 lbs / 7.2 kg |
| Regulation | External Only (EX) |
| Finish | (Black) E-coating |
| Cut-In RPM | 1,072 Alternator RPM |
| Maximum Alt RPM | 19,000 |
| Battery Post | M8 Thread Post, Side Mount |
| Standard Pulley | 49K6 (6-groove, 49mm) |
| Pulley Mount | 17mm diameter shaft, 25mm long, threaded M17 x 1.5 |
| Pulley Hardware | M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included) |
| Diodes | 6 positive, 6 negative, 50A Rated, Avalanche |
| Max Output (Cold, 9,000 RPM) at 27.5V | 144 Amps - 3,960 Watts – 5.7Kw PTO |
| Sustained Cruising Output | 130 Amps - 3,575 Watts – 5.1Kw PTO |
| Sustained Idle Output | 108 Amps - 2,970 Watts – 4.2kW PTO |
| Max Continuous Operating Temperature | 100°C / 212°F |
*All models are EXTERNAL Regulation",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"Vortec (GM), N62 Clutch Pulley, 1""-2"" Single Foot, 3.15"" Dual Foot, 3.15"" R Dual Foot Rear Exit B+, 4"" J180",,"Case Ground, Isolated Ground",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 4kW - 24V,,AZ4401,"Arco Marine - 24v 4kW LTO DF315, Side B Batt Post, Isolated Ground",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"3.15"" Dual Foot",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 4kW - 24V,,AZ4402,"Arco Marine - 24v 4kW LTO DF315, Rear B Batt Post, Isolated Ground",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"3.15"" Dual Foot Rear Exit B+",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 4kW - 24V,,AZ4403,"Arco Marine - 24v 4kW LTO DF4, Side Bat Post, Isolated Ground",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"4"" J180",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 4kW - 24V,,AZ4404,"Arco Marine - 24v 4kW LTO N62, Side Bat Post, 50mm K6 OAP",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,N62 Clutch Pulley,,Case Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 4kW - 24V,,AZ4405,"Arco Marine - 24v 4kW LTO SF12, Side Ba Post, Isolated Ground, 49mm",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"1""-2"" Single Foot",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 4kW - 24V,,AZ4406,"Arco Marine - 24v 4kW LTO VT, Side Batt Post, 49mm K6 Pulley",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,Vortec (GM),,Case Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 7kW - 24V,,,,Y,,"
If Optimal Charging at Low Speed is Important to You, This is the Perfect Alternator for You
High Output / High Amperage Alternator: The Highest Power Output in Its Class
Note: If fast idle charging is important to you, view our ARCO Zeus 24V 7kW High Amperage Alternator.
24V Advantage - Low Turn On (LTO)
The ARCO Zeus A4000-24V LTO alternator turns on at lower RPMs, runs cooler and provides more power than older designs that are larger and heavier. This alternator continuously generates over 1.4kW (51 Amps) at just under 1,500 RPM, and almost 2.4kW (87 Amps) at 2,000 Alternator RPM. Put in real world terms, a marine diesel engine idling at 750 RPM with a 2:1 pulley ratio is generating over 1.5kW (55 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 2.5kW (91 Amps)!
Best-in-Class Performance
The ARCO Zeus A4000-24V alternator turns on at lower RPMs, runs cooler and provides more power than older designs that are larger and heavier. The newest generation of 24V performance has arrived.
True 24V Alternators
Competitor’s 24V alternators utilize a 12V rotor and field current which is less efficient and limits output at all RPMs. ARCO utilizes a native 24V rotor and field current. This results in our 24V alternator running cooler than competitor’s 24V alternators, having a direct impact on alternator lifespan.
ARCO Zeus 24V High Amperage Alternators, A4000-24V LTO or A7000-24V: Which One's Right for You?
Choose A4000-24V LTO if:
- You prioritise charging at idle (at campsite or anchor)
- You need to limit power take-off i.e. smaller engine
- You are willing to trade some top-end output for increased output
at low RPM. - Replace your noisy generator!
- Engineered for high energy production.
- Suitable for marine, RV, military, and commercial applications.
- Rapidly charges large battery banks.
- Coolest operating temperatures for increased performance:
- Heat shedding coatings
- Rectifier located on housing exterior
- Dual cooling fans
- OEM components
- Optimized for performance at cruising speeds.
- Reduces the need for a generator by creating additional power with your engine.
- Unleash peak performance with E-Coat/Cerakote, keeping the high amp alternator cooler for sustained amperage output.
- For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator.
- SAE J1171 Certified.
- Proudly made in the U.S.A.
Technical Specifications
| Voltage | 24V |
| Field Type | P |
| Rotor Poles | 16 |
| Rotator Source Voltage | 24V |
| Stator Size | 138mm |
| Frame Size | Large |
| Weight of heaviest option (N62 with clutch pulley) | 15.89 lbs / 7.2 kg |
| Regulation | External Only (EX) |
| Finish | (Black) E-coating |
| Cut-In RPM | 1,072 Alternator RPM |
| Maximum Alt RPM | 19,000 |
| Battery Post | M8 Thread Post, Side Mount |
| Standard Pulley | 49K6 (6-groove, 49mm) |
| Pulley Mount | 17mm diameter shaft, 25mm long, threaded M17 x 1.5 |
| Pulley Hardware | M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included) |
| Diodes | 6 positive, 6 negative, 50A Rated, Avalanche |
| Max Output (Cold, 9,000 RPM) at 27.5V | 144 Amps - 3,960 Watts – 5.7Kw PTO |
| Sustained Cruising Output | 130 Amps - 3,575 Watts – 5.1Kw PTO |
| Sustained Idle Output | 108 Amps - 2,970 Watts – 4.2kW PTO |
| Max Continuous Operating Temperature | 100°C / 212°F |
*All models are EXTERNAL Regulation",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"Vortec (GM), N62 Clutch Pulley, 1""-2"" Single Foot, 3.15"" Dual Foot, 3.15"" R Dual Foot Rear Exit B+, 4"" J180",,"Case Ground, Isolated Ground",,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 7kW - 24V,,AZ4501,"Arco Marine - 24v 7kW DF315, Side Batt Post, Isolated Ground, 49mm K6",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"3.15"" Dual Foot",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 7kW - 24V,,AZ4502,"Arco Marine - 24v 7kW DF315, Rear Batt Post, Isolated Ground, 49mm K6",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"3.15"" R Dual Foot Rear Exit B+",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 7kW - 24V,,AZ4503,"Arco Marine - 24v 7kW DF4, Side Batt Po Post, Isolated Ground, 49mm K6",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"4"" J180",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 7kW - 24V,,AZ4504,"Arco Marine - 24v 7kW N62, Side Batt Po Post, 50mm K6 OAP",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,N62 Clutch Pulley,,Case Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 7kW - 24V,,AZ4505,"Arco Marine - 24v 7kW SF12, Side Batt P ost, Isolated Ground, 49mm K6",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,"1""-2"" Single Foot",,Isolated Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 7kW - 24V,,AZ4506,"Arco Marine - 24v 7kW VT, Side Batt Pos 49mm K6 Pulley",Y,,,,,,,,,,,,,,,,,,0,,,,,,,,,,,,,,,,,,,,,,,,,COL^DND^DXN,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,Arco Marine,,,,,,,,,,,,,,,,,,,,,,,,,Vortec (GM),,Case Ground,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,,, Products,Electrical & Electronic,Alternators & Regulators,,,,,,ARCO Zeus High Output Alternator - 8kW - 48V,,,,Y,,"
ARCO Zeus 48V Advantage
Better Technology = Better Performance
High Output / High Amperage Alternator: The Highest Power Output in Its Class
A8000-48V Advantage
The ARCO Zeus A8000-48V alternator turns on at lower RPMs, runs cooler and provides more power than other 48V alternators that are larger and heavier. This alternator continuously generates over 3kW (55 Amps) 2,500 RPM, and almost 6kW (111 Amps) at 4,000 Alternator RPM. Put in real world terms, a marine diesel engine charging at 1,200 RPM with a 3.13:1 pulley ratio is generating just over 5kW (97 Amps), and a Mercedes Sprinter at 750 RPM with a 3.21:1 ratio is generating over 3kW (55 Amps)!
True 24V Alternators
Instead of using rotors designed for 48 volts, many competitor’s alternators simply use their 12V rotors which is less efficient and limits output at all RPMs. In this scenario, your external smart regulator must drastically reduce field, by as much as 78%. If this is not done correctly, you run the risk of destroying the unit and damaging other components in your system. ARCO utilizes a native 48V rotor and field current. This results in our 48V alternator running cooler than competitor’s 48V alternators, having a direct impact on the alternator’s lifespan.
- Replace your noisy generator!
- Engineered for high energy production.
- Suitable for marine, RV, military, and commercial applications.
- Rapidly charges large battery banks.
- Coolest operating temperatures for increased performance:
- Heat shedding coatings
- Rectifier located on housing exterior
- Dual cooling fans
- OEM components
- Optimized for performance at idle speeds.
- Reduces the need for a generator by creating additional power with your engine.
- Unleash peak performance with E-Coat, keeping the high amp alternator cooler for sustained amperage output.
- For maximum performance or lithium battery charging, use the ARCO Zeus Bluetooth Alternator Regulator.
- SAE J1171 Certified.
- Proudly made in the U.S.A.
Technical Specifications
Voltage | 48V |
Field Type | P |
Rotor Poles | 16 |
Rotator Source Voltage | 48V |
Stator Size | 138mm |
Frame Size | Large |
Weight of heaviest option (N62 with clutch pulley) | 15.89 lbs / 7.2 kg |
Regulation | External Only (EX) |
Finish | (Black) E-coating |
Cut-In RPM | 1,920 Alternator RPM |
Maximum Alt RPM | 19,000 |
Battery Post | M8 Thread Post, Side Mount |
Standard Pulley | 49K6 (6-groove, 49mm) |
Pulley Mount | 17mm diameter shaft, 25mm long, threaded M17 x 1.5 |
Pulley Hardware | M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included) |
Diodes | 6 positive, 6 negative, 80A Rated, Avalanche |
Max Output (Cold, 9,000 RPM) at 53.5V | 9,630 Watts - 180 Amps - 14.80 kW PTO |
Sustained Cruising Output | 7,383 Watts - 138 Amps - 10.5 kW PTO |
Sustained Idle Output | 4,173 Watts - 78 Amps - 6 kW PTO |
Max Continuous Operating Temperature | 100°C / 212°F |
| Brand | Arco Marine |
|---|---|
| Ground Type | Case Ground, Isolated Ground |
| Housing | Vortec (GM), N62 Clutch Pulley, 1"-2" Single Foot, 3.15" Dual Foot, 3.15" R Dual Foot Rear Exit B+, 4" J180 |
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