SKU: 8164167140

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 3 - Aug 8

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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: 8164167140

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4.3 ★★★★★
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Product Reviews
K
Verified Purchase
Kennneth graves
Battle Creek, US
★★★★★ 5
Quality product
Size: 16AWG -20FT 2Pcs
Just what I needed to finish my lights
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 7, 2026
Y
Verified Purchase
You noe im Rite
Omaha, US
★★★★★ 5
This is Fine
Size: 16AWG -20FT 2Pcs
Verry nice wire that honestly feels like its 18 gauge wire Nothin more nothin less
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 25, 2026
D
Verified Purchase
DC
Lake Worth, US
★★★★★ 5
Works good
Size: 16AWG -20FT 2Pcs
I used it to set up some extra pods on the back of my truck, and having that full 20 feet of length made it so much easier to route everything cleanly without having to splice in extra wire. The 16-gauge copper feels heavy-duty and is protected by a thick PVC jacket that seems like it’ll hold up well against heat and the elements. It’s a simple plug-and-play setup that saved me a ton of time, and the connections snap together with a really solid, secure click. If you’re doing a custom lighting build on a larger vehicle or a boat, this kit is a total lifesaver for keeping your wiring looking professional and staying reliable.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 20, 2026
K
Verified Purchase
Kenneth Harris
Dallas, US
★★★★★ 4
Wiring
Size: 16AWG -20FT 2Pcs
Great wires
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 3, 2026
C
Verified Purchase
Chad H.
Houston, US
★★★★★ 5
Wiring harness extension
Size: 16AWG -20FT 2Pcs
Long wires for the switch harness to reach the back bumper
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 4, 2026

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