ARCO Marine Zeus 24V 4kW Low Turn On (LTO) J180 4" Alternator w/Isolated Ground
ARCO Marine Zeus 24V 4kW Low Turn On (LTO) J180 4" Alternator w/Isolated Ground
Built by ARCO Marine for serious use.
Overview
The ARCO Zeus 24v 4kW 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)!
The ARCO Zeus 24v 4kW 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.
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 the alternator lifespan.
Key features
- 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.
Specifications
| Voltage - 24v | |
| Field Type - P | |
| Rotor Poles - 16 | |
| Stator Size - 138mm | |
| Frame Size - Large | |
| Weight - 15.89lbs/7.2kg | |
| Regulation - External Only | |
| 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 (Hot, 6,000 RPM) at 27.5v - 130 Amps - 3,575 Watts – 5.1Kw PTO | |
| Sustained Idle Output (Hot, 3,000 RPM) at 27.5v - 108 Amps - 2,970 Watts – 4.2kW PTO | |
| Max Continuous Operating Temperature - 100°C / 212°F | |
| Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount. |
Product info
| Brand | ARCO Marine |
| Manufacturer part number | 4403 |
| Shipping weight | 16.7 lbs |
Warranty & support
Manufacturer warranty terms apply per ARCO Marine policy. Coverage details, registration, and eligibility vary by manufacturer. For warranty questions on this product, contact ARCO Marine directly or reach our support team.
Sold by DNA Auto. For questions about fit, install, or specs, reach our support team.