Brand: ARCO Marine
ARCO Marine Zeus A275L J180 4 in. Alternator with Isolated Ground and Terminal Block (4023)
ARCO Marine Zeus A275L J180 4 in. Alternator with Isolated Ground and Terminal Block (4023)
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About this product
The ARCO Marine Zeus A275L is a high-output 12V alternator engineered for marine, RV, military, and commercial applications. This unit features a 4-inch J180 saddle-style mount, making it a suitable replacement for most Volvo Penta alternators. Designed for maximum efficiency and cooling, it utilizes a specialized E-coat/Cerakote finish and dual cooling fans to maintain performance even at idle speeds.
Key Features:
- Output: 311 Amps (cold) at 9,000 RPM; 198 Amps (hot) at 3,000 RPM idle
- Isolated ground design with external rectifier placement for cooler operation
- Internal voltage regulation with adapter option for external regulation
- SAE J1171 certified and made in the U.S.A.
- Frame size: Large, 14.9 lbs.
- Default output voltage: 14.1V
- Includes M8 side-mount battery post and 6-groove 49mm pulley hardware
- Max continuous operating temperature: 230°F (110°C)
Manuals & videos
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-117922
- Model / MPN
- 4023
- UPC / GTIN
- 695845769955
- Package dimensions (H × W × L)
- 9" X 10" X 10"
- Package weight
- 16.6 lb
Fit-sensitive item: confirm measurements, model numbers, and manufacturer details before ordering. Tug & Tow does not guarantee universal compatibility from a product page alone.
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Shipping & returns
Shipping & returns
Request an eligible return within 21 calendar days after delivery. Every physical return requires written approval and an RMA number and must be shipped within five business days after the RMA is issued. The customer pays return shipping for an ordinary return. Tug & Tow provides prepaid return shipping for a verified damaged, defective, short, or incorrect shipment. We do not charge a restocking fee. See Shipping & Returns for eligibility, exclusions, and details.
Fit & compatibility
Fit & compatibility
Review the product title, description, images, dimensions, part numbers, and manufacturer details before purchase. For fit-sensitive items, confirm compatibility with your boat, RV, trailer, vehicle, or equipment.
Need help choosing?
Need help choosing?
Send us the product link or SKU, plus details about your boat, RV, trailer, vehicle, or project. We will help you narrow down the right option when product fit is not obvious.
