✨ Christmas Special: Get 35% OFF your first order. ✨

Your Shopping Bag

Your bag is empty

Subtotal $0.00
Shipping Calculated at checkout
Continue Shopping

Experience Arco Marine Zeus A275l J180 4" Alternator W/isolated Ground Regulator [4025] For Kids [Re3j0awi]

$41.99 $134.99 -69%

ARCO Marine Zeus A275L J180 4" Alternator w/Isolated Ground  Regulator [4025]The highest power output alternator in its size/class. Features:Engineered for high energy production.Suitable for marine, RV, military, and commercial applications.Rapidly

Secure Shopping

100% Safe Guarantee

Free Shipping

On orders over $30

Money-Back

30-Day Guarantee

Experience Arco Marine Zeus A275l J180 4" Alternator W/isolated Ground Regulator [4025] For Kids [Re3j0awi]

ARCO Marine Zeus A275L J180 4" Alternator w/Isolated Ground  Regulator [4025]

The highest power output alternator in its size/class. 

Features:

  • Engineered for high energy production.
  • Suitable for marine, RV, military, and commercial applications.
  • Rapidly charges large battery banks.
  • Coolest operating temperatures for increased performance.
  • Heat shedding coatings
  • Rectifier located on housing exterior
  • Dual cooling fans
  • OEM components
  • Optimized for performance at idle speeds.
  • Reduces the need for a generator by creating additional power with your engine.
  • Unleash peak performance with E-Coat/Cerakote, keeping the A275L cooler for sustained amperage output.
  • Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
  • SAE J1171 Certified.
  • Models are available with an internal/external voltage regulator.
  • Proudly made in the U.S.A.

Product Specifications

ARCO Marine Zeus A275L J180 4" Alternator w/Isolated Ground  Regulator [4025] Product Specifications

Technical Specifications:

  • Voltage - 12v
  • Field Type - P
  • Rotor Poles - 16
  • Stator Size - 138mm
  • Frame Size - Large
  • Weight - 14.9 lbs/6.7 kg
  • Regulation - Internal/External (Internally regulated with adaptor for optional external regulation.)
  • Output Voltage - 14.1v (Default)
  • Finish - (Black) Cerakote or E-coating
  • Cut-In RPM - 1,061 Alternator RPM
  • Maximum Alt RPM - 19,000
  • Battery Post - M8 Thread Post, Side Mount
  • Standard Pulley - 49K6 (6-groove, 49mm)
  • Pulley Mount - 17mm diameter shaft, 25mm long, threaded M17 x 1.5
  • Pulley Hardware - M17 x 1.5 x 24mm nut, w/ 18mm ID x 29mm OD washer (Included)
  • Diodes - 6 positive, 6 negative, 50A Rated, Avalanche
  • Max Output (Cold, 9,000 RPM) - 311 Amps
  • Sustained Cruising Output (Hot, 6,000 RPM) - 227 Amps
  • Sustained Idle Output (Hot, 3,000 RPM) - 198 Amps
  • Max Continuous Operating Temperature - 110°C / 230°F

Mounting Application:

  • Replaces most Volvo Penta alternators using a 4” J180 saddle-style mount

Product Manual

Quick Guide (pdf)
Brochure (pdf)

Product Warranty

ARCO Zeus Brand Limited Warranty

Product FAQs

N/A

What Our Customers Say

January 16, 2026

Absolutely no complaints!

The product is a very good quality service.

- Renata H..

January 16, 2026

Absolutely no complaints!

This is a very well-rounded product.

- Raelynn W..

January 16, 2026

Absolutely no complaints!

It's a very well-made product, I am impressed.

- Anna C..

Write a Review

You Might Also Like

Discover more great products from our collection.

PIN,KING

PIN,KING

(329)
$21.99 $70.99 -69%
4981457 - HYDRAULIC PISTON

4981457 - HYDRAULIC PISTON

(147)
$28.99 $92.99 -69%
Yanmar 198220-46603

Yanmar 198220-46603

(560)
$50.99 $163.99 -69%
Winter Cottage

Winter Cottage

(894)
$20.99 $67.99 -69%
Custom Sunglasses

Custom Sunglasses

(623)
$26.99 $86.99 -69%

Copyright 2026 © technovaprecision.com

VISA
PayPal
Stripe
Mastercard
CASH ON DELIVERY