Brand: ARCO Marine
ARCO Marine Zeus A275L Vortec Alternator, 12V
ARCO Marine Zeus A275L Vortec Alternator, 12V
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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. Optimized for performance at idle speeds, this unit features advanced E-Coat/Cerakote finishes to manage heat, allowing for cooler operation and sustained high amperage output.
Key Features:
- Designed to charge large battery banks efficiently, reducing the need for a separate generator.
- Operates 8% to 20% cooler than standard alternators through heat-shedding coatings, an externally mounted rectifier, and dual cooling fans.
- Regulation: External regulation required (includes terminal block and P-Type harness; compatible with ARCO Zeus Bluetooth regulators).
- Construction: 16 rotor poles, 138mm stator, and durable E-Coat/Cerakote finish.
- Performance: Max output of 311 Amps (cold, 9,000 RPM) and sustained idle output of 198 Amps (hot, 3,000 RPM).
- Compliance: SAE J1171 certified.
- Manufacturing: Made in the U.S.A.
Mounting and Compatibility:
- Designed to replace Mando-type alternators with Vortec/GM pad mounting feet, commonly found on GM-block marine engines including Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, and 5.7GXiL.
- Pulley details: Includes 49K6 6-groove pulley, 17mm shaft, and mounting hardware.
- Weight: 14.9 lbs.
- Manufacturer Part Number: 4033.
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-117904
- Model / MPN
- 4033
- UPC / GTIN
- 695845547775
- Package dimensions (H × W × L)
- 10" X 10" X 11"
- Package weight
- 16.5 lb
Specifications
- Type
- ARCO Marine Zeus A275L Vortec Alternator w/Terminal Block
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.
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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.
