SKU: 36217655981

ARCO Marine Zeus A275L J-180 4" Alternator w/Terminal Block [4022]

Sale price$444.02 Regular price$493.35
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Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

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For Your Every Summer RSVP, with Code: SUMMER15

Description

ARCO Marine Zeus A275L J-180 4" Alternator w/Terminal Block [4022]Zeus A275L J 180 4" Alternator with 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. It runs 8 20% cooler than incumbent alternators due to heat shedding coatings, a refrigerator on the housing exterior, dual cooling fans, and

Zeus A275L J-180 4" Alternator with 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.
  • It runs 8 - 20% cooler than incumbent alternators due to heat-shedding coatings, a refrigerator on the housing exterior, dual cooling fans, and OEM components.
  • It is 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. Our advanced coating absorbs less heat, keeping the A275L cooler. This translates to more amperage for sustained periods.
  • Use an ARCO Zeus Bluetooth alternator regulator or lithium battery charging for maximum performance.
  • SAE J1171 Certified.
  • 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 - External Only (These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.) 
  • 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

Quick Guide (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: 36217655981

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FTL
Belleville, US
★★★★★ 5
Great shoes
Size: 10.5, Color: Dark Grey
I saw people wearing shoes like this in the office (maybe not the same brand), so I ordered a pair to see how they feel. They feel amazing. It's basically sneaker that look ok to be worn with pants and sport jacket. Fit is great, I ordered my usual size and they fit nicely. Sole is thick enough to make them comfortable, not too thick to looks like a sport sneaker. Durability seems ok, wore them couple of times, so I can't really tell, but they seems like they can last long time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 26, 2026
K
Verified Purchase
Ken
West Palm Beach, US
★★★★★ 5
Love these shoes
Size: 9.5, Color: Grey
These shoes are soft, comfy, and easy on and off. They breathe in the summer heat and feel good on a cool evening. They run true to size and the colors are like they are represented. I recommend this brand for a good looking, inexpensive shoe.
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Reviewed in the United States on June 2, 2026
R
Verified Purchase
R. Rose
Port Orchard, US
★★★★★ 5
Comfortable shoes that still look presentable
Size: 12, Color: Black
I wanted a pair of shoes that were more presentable than regular sneakers but did not feel like stiff dress shoes, and these fit that role well. They have the look of a casual oxford, but the mesh upper makes them feel much lighter and easier to wear. That makes them useful for days when I want to look a little more put-together without sacrificing comfort. They are breathable, easy to walk around in, and work well with casual outfits. The only thing I’d keep in mind is that the mesh material can take a little extra care to keep clean, but that is a reasonable tradeoff for the comfort.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 29, 2026
H
Verified Purchase
Heather Muprhy
Alexandria, US
★★★★★ 5
Summertime Comfort
Size: 6.5, Color: Light/Brown
My husband has a small foot and the shoe was a perfect fit for him, size 6 1/2. Normally this is a difficult size to find in a shoe. He was very pleased with the color and weight of the fabric. The fabric is breathable and lightweight. The shoes are very well constructed with a nice solid heel and sole. They are a perfect summertime shoe. The shoes will go well with shorts or casual trousers.
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Reviewed in the United States on April 18, 2026
J
Verified Purchase
joeB917
Birmingham, US
★★★★★ 5
Comfort + Style = Dream Walkers
Size: 13, Color: Dark Black
Im in awe of how comfortable these are. Took a chance on this unfamiliar brand because the price and style were just what I was looking for. They came today tried them on, they are so light and airy and the super spongey soul make them dreamy to walk on. Now let's just hope they last 🤞🏼 Thanks for making a great shoe!
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Reviewed in the United States on May 5, 2026

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