SKU: 40756826951

ARCO Marine Zeus A275L 3.15 Alternator w/Case Ground (Common Rail) Terminal Block [4020]

Sale price$444.02 Regular price$493.35
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Ships within 48 hours · Estimated delivery Aug 19 - Aug 24

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Description

ARCO Marine Zeus A275L 3.15 Alternator w/Case Ground (Common Rail) Terminal Block [4020]Zeus A275L 3. 15 Alternator with Case 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 Case 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 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:

  • 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: 40756826951

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MSCS
Birmingham, US
★★★★★ 5
Attractive and really, a perfect size.
Color: Rustic Brown-2pack
They are a little larger than I thought, however, they will be perfect for what I need them for. There not up yet, but I know that you will really love these! I do, and hopefully will have them up soon!
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Reviewed in the United States on February 21, 2026
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Rebecca Eller
Fort Morgan, US
★★★★★ 5
Easy and beautiful
Color: Rustic Brown-2pack
Beautiful, easy to hang.
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Reviewed in the United States on May 2, 2026
P
Verified Purchase
Patti Almonte
Natrona Heights, US
★★★★★ 4
They serve the purpose
Color: White-4pack
These corner shelves are just what I wanted to hold our modem and router on one and a small lamp on the upper. The little ledge makes me feel confident that the devices won't easily be knocked off accidentally. My husband, a retired contractor, installed them so they are level. They are made of pressed board with a laminate veneer of some sort. The laminate arrived damaged on one of the shelves, but I wanted to use two of them right away so a dab of paint will cover the damage if it's placed in an inconspicuous spot.
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Reviewed in the United States on May 23, 2026
N
Verified Purchase
Nancy
Phoenix, US
★★★★★ 5
Shelves
Color: Rustic Brown-2pack
Very sturdy
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Reviewed in the United States on May 26, 2026
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Verified Purchase
Linda Thomas
New York, US
★★★★★ 5
Looking good
Color: Rustic Brown-2pack
Love the them. They look so good in the corner with pics on it n vase with bird of paradise in it. Going to buy more.
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Reviewed in the United States on May 4, 2026

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