SKU: 39499716327

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

Sale price$451.75 Regular price$501.95
Save 10%

Pay in installments of $125.49 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Aug 30 - Sep 4

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

ARCO Marine Zeus A275L J-180 4" Alternator w/Terminal BlockZeus 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 - 110C / 230F

Mounting Application:

  • Replaces most Volvo Penta alternators using a 4 J180 saddle-style mount
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: 39499716327

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.5 ★★★★★
Based on 22 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
K
Verified Purchase
kelley lane
West Palm Beach, US
★★★★★ 5
Keeps great time
This is actually prettier than I thought it would be and I am tough on everything I wear. Never know what the day will entail, so when I clean it at the end of the day, it’s pretty shine comes right back. I’m pleased with it.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 19, 2024
G
Verified Purchase
godsgirl
Birmingham, US
★★★★★ 3
Very hard to see the HANDS, but pretty
Very pretty and I didn't have to remove links. Hard to see the hands unless you angle it in the light. I'm not sure if I'll keep it. I'll give it some time ..lol and see how it goes before Amazon's 30 day policy.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 12, 2025
D
Verified Purchase
debba
Houston, US
★★★★★ 3
just makes it around my large wrist - but very pretty
If you also have a large wrist like I do, well ... try it out. Bought it to look delicate and pretty at my son's wedding, to match color of gown. Which it does. Side note: the hands are cobalt blue, for some reason! But you'd have to look up close to discover that. It doesn't take away from the overall look I wanted. Edit: !@#$@! - it BROKE halfway through the wedding! During the dancing, I discovered it on the floor. Downgrading this to one star, of course.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on July 8, 2023
A
Verified Purchase
Amy Miller
New York, US
★★★★★ 2
DIdn't Work
When I got the watch, it wasn't running, so I took it to a local jewelry store and had the battery replaced, which cost another $20+ and it still wouldn't run.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on September 18, 2023
B
Verified Purchase
Betty
New York, US
★★★★★ 5
Stunning automatic watch — looks way more expensive than it is
Color: All Gold, Color: All Gold
I bought this OLEVS automatic as a gift for my husband and he was thrilled. The gold-tone finish is rich and consistent, the open-heart dial showing the movement is a beautiful touch, and the day/week sub-dials work smoothly. The caseback shows the automatic movement clearly — you can see the rotor spinning with every wrist movement. It feels comfortable and the bracelet is solid. For the price, this is an outstanding piece. He gets compliments every time he wears it.​​​​​​​​​​​​​​​​
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 9, 2026

recommand products