Brand: ARCO Marine
ARCO Marine Zeus A275L 3.15 in. Alternator with Isolated Ground and Terminal Block
ARCO Marine Zeus A275L 3.15 in. Alternator with Isolated Ground and Terminal Block
Sold out
About this product
The ARCO Marine Zeus A275L 3.15 in. alternator is designed for high-energy production across marine, RV, military, and commercial applications. This unit is built to charge large battery banks efficiently, featuring dual cooling fans, heat-shedding E-coat or Cerakote finishes, and an exterior-mounted rectifier for cooler operating temperatures.
Key Features:
- Optimized performance at idle speeds
- SAE J1171 certified
- Made in the U.S.A.
- Compatible with the ARCO Zeus Bluetooth Alternator Regulator for lithium charging
- Dual cooling fans and exterior rectifier design
Technical Specifications:
- Voltage: 12V
- Max Output: 311 Amps (Cold, 9,000 RPM)
- Sustained Idle Output: 198 Amps (Hot, 3,000 RPM)
- Regulation: Internal with adapter for external regulation
- Weight: 14.9 lbs
- Mount: 3.15 in. saddle style
- Pulley: 49K6 (6-groove, 49mm)
- Max Continuous Operating Temperature: 230°F
Fitment Note: This alternator replaces most small case styles using a 3.15 in. saddle mount, such as those found on Hitachi, Lucas, Mitsubishi, and most Yanmar systems. Installation requires upgrading standard single V-belts to a serpentine system.
Manuals & videos
- Secure checkout
- 21-day return requests
- Free standard shipping $100+
Product facts
- CT SKU
- CT-118029
- Model / MPN
- 4019
- UPC / GTIN
- 695845960956
- Package dimensions (H × W × L)
- 10" X 10" X 10"
- Package weight
- 16.25 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.
Complete the setup
Recommended accessories
Useful add-ons matched to this product.
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.
