SKU: 76554700208

ARCO Marine Zeus A275L 3.15 Alternator w/Isolated Ground (Common Rail) Terminal Block [4021]

Sale price$493.52 Regular price$548.35
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Ships within 48 hours · Estimated delivery Aug 20 - Aug 25

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Description

ARCO Marine Zeus A275L 3.15 Alternator w/Isolated Ground (Common Rail) Terminal Block [4021]Zeus A275L 3. 15 Alternator with Isolated Ground (Common Rail) & 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 3.15 Alternator with Isolated Ground (Common Rail) & 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 are available with an 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:

  • Must be used on Yanmar Common Rail introduced after 2013 (JH-CR, 3JH40, 4JH45, 4JH57, 4JH80, 4JH110)

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: 76554700208

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R
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R. Alembik
Belleville, US
★★★★★ 5
Really awesome coat
Size: X-Large, Color: Navy-03
I love this coat. Its attached "scarf" didn't really do it for me, so I removed it. It is well constructed with quality fabric and stitching... at least for the price. I did some intense traveling with it over the holidays and it held up fine. Nice inner pockets. And I got compliments on the look. I would say that it runs a bit small or that I gained more weight over the holidays than I thought I did. I was able to use it as a top coat over a suit FWIW.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 23, 2026
C
Verified Purchase
Carlos
Phoenix, US
★★★★★ 5
Perfect fit!
Size: Large, Color: Brown-23
Excellent quality! Received numerous compliments when I wore it. Looks amazing! It fit perfectly, like wearing a hug. Loved it over all!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on October 20, 2025
D
Verified Purchase
Diana J.
Whiting, US
★★★★★ 4
Nice
Size: Large, Color: Black-26
Brought this for my husband and he likes it. It fits him well. I recommend this coat for Comfort and style.
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Reviewed in the United States on December 30, 2025
I
Verified Purchase
It has not enough room to store my underwear …
Natrona Heights, US
★★★★★ 5
It’s a bargain
Size: X-Large, Color: Navy-23
It’s a bargain, great outfit,
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Reviewed in the United States on February 19, 2026
D
Verified Purchase
Dmo
Lake Worth, US
★★★★★ 3
Not made for cold weather.
Size: Large, Color: Brown-23
Quality and fit wasn’t that good.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 11, 2026

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