SKU: 16720136573

ARCO Marine Zeus A275L 1"-2" Single Foot Alternator w/Isolated Ground Terminal Block [4028]

Sale price$493.52 Regular price$548.35
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

ARCO Marine Zeus A275L 1"-2" Single Foot Alternator w/Isolated Ground Terminal Block [4028]Zeus A275L 1" 2" Single Foot Alternator with Isolated Ground & Terminal Block 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

Zeus A275L 1"-2" Single Foot Alternator with Isolated Ground & Terminal Block

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 available with internal/external voltage regulator.
  • Proudly made in the U.S.A.

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 domestic styles using a single 1" or 2" mounting foot (e.g., Motorola, Prestolite). Requires Standard single "V" belt upgrading to a double "V" belt or Serpentine System

Quick Guide (pdf)
Brochure (pdf)
Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 16720136573

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4.2 ★★★★★
Based on 14 reviews
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A
Verified Purchase
Amy Swindler
New York, US
★★★★★ 5
Works well but doesn't stop on it's own
Color: Green/Battery
The price was decent and I like the color. It is easy to get started and it came with batteries which was unexpected and nice! Like others have said, it doesn't stop on it's own like it's supposed to, which is my only drawback with it. I had thought that if I pushed the button on the top it might stop it, but all that does is reverse the direction of the opener. 4 stars because it does work, but having to fool around with it to make it stop makes it lose a star for me.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 17, 2025
M
Verified Purchase
Marisela Alaniz
Waukegan, US
★★★★★ 4
Not bad at all
Color: Green/Battery
Super EASY for my 83 old mother with arthritis to use. It’s not “speedy” but it works great.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 12, 2026
S
Verified Purchase
Sherry Spoon
West Palm Beach, US
★★★★★ 5
Great product
Color: Green/Battery
I bought this last year prior to having carpal tunnel surgery. I highly recommend it for anyone. It’s easy to use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 26, 2026
E
Verified Purchase
eirc
Whiting, US
★★★★★ 1
It stopped working
Color: Green/Battery
I got it on December. Its only April and it stopped working already. And I cant return it 🤯 we already tried to change batteries, it didn’t matter.
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Reviewed in the United States on April 20, 2026
C
Verified Purchase
Chris
Carnegie, US
★★★★★ 5
Great for people with arthritis!
Color: Green/Battery
This product works great! Very good for arthritic persons ! Love the smooth edges on cut cans!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 25, 2026

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