• ARCO Marine Zeus A275L High Output Alternator, 12V 311A – Made in USA
  • ARCO Marine Zeus A275L High Output Alternator, 12V 311A – Made in USA
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Brand: ARCO Marine

ARCO Marine Zeus A275L 3.15 Alternator with Case Ground and Terminal Block

ARCO Marine Zeus A275L 3.15 Alternator with Case Ground and Terminal Block

$1,044.72
$1,044.72
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About this product

The ARCO Marine Zeus A275L 3.15 Alternator is engineered for high-energy production, providing a high power output in a compact frame size. Designed for marine, RV, military, and commercial applications, this 12V alternator is optimized to charge large battery banks efficiently, even at idle speeds.

Key Features:

  • Engineered for marine use with SAE J1171 certification.
  • Features heat-shedding E-Coat/Cerakote finish and dual cooling fans to maintain lower operating temperatures.
  • Includes a 6-groove, 49mm pulley and required mounting hardware.
  • Rectifier is mounted on the exterior of the housing for improved thermal management.
  • Supports optional external regulation for lithium battery charging via the ARCO Zeus Bluetooth Regulator.
  • Provides 311 Amps max cold output at 9,000 RPM, 227 Amps sustained cruising output, and 198 Amps sustained idle output.
  • Proudly made in the U.S.A.

Mounting Application:
This alternator is specifically designed for Yanmar Common Rail engines introduced after 2013, including JH-CR, 3JH40, 4JH45, 4JH57, 4JH80, and 4JH110 models.

Manuals & videos

  • Secure checkout
  • 21-day return requests
  • Free standard shipping $100+

Product facts

CT SKU
CT-118032
Model / MPN
4020
UPC / GTIN
695845603174
Package dimensions (H × W × L)
10" X 10" X 10"
Package weight
16.0 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

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

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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