• ARCO Marine Zeus A275L J-180 Alternator, 12V 311A, SAE J1171 Certified
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Brand: ARCO Marine

ARCO Marine Zeus A275L J-180 4 in. Alternator with Regulator

ARCO Marine Zeus A275L J-180 4 in. Alternator with Regulator

$1,160.14
$1,160.14
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About this product

The ARCO Marine Zeus A275L J-180 4 in. alternator with regulator is engineered for high-energy production across marine, RV, military, and commercial applications. This unit is designed to charge large battery banks efficiently, even at idle speeds, and is built to operate 8–20% cooler than standard alternatives using heat-shedding coatings and dual cooling fans.

  • High Performance: Delivers up to 311 Amps at 9,000 RPM (cold) and sustained output of 198 Amps at idle (hot).
  • Compatibility: Features a J-180 4 in. saddle-style mount, designed to replace most Volvo Penta alternators.
  • Specifications: 12V system, 16 rotor poles, 138mm stator, and 14.9 lbs weight.
  • Regulation: Internal regulation with an adapter included for optional external regulation.
  • Durability: SAE J1171 certified and finished with black E-Coat/Cerakote for advanced heat management.
  • Pulley: Includes 49K6 6-groove pulley with M17 mounting hardware.
  • Origin: Made in the U.S.A.

Technical Data: Max continuous operating temperature is 110°C (230°F), with a maximum alternator speed of 19,000 RPM and a cut-in speed of 1,061 RPM.

Manuals & videos

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Product facts

CT SKU
CT-117894
Model / MPN
4024
UPC / GTIN
695845877032
Package dimensions (H × W × L)
9" X 10" X 10"
Package weight
16.55 lb

Specifications

Type
ARCO Marine Zeus A275L J-180 4" Alternator w/Regulator

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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

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