SKU: 18038439806

ARCO Marine Zeus A275L J180 4" Alternator w/Isolated Ground Terminal Block

Sale price$493.52 Regular price$548.35
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  • USA
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Ships within 48 hours · Estimated delivery Jul 13 - Jul 18

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For Your Every Summer RSVP, with Code: SUMMER15

Description

ARCO Marine Zeus A275L J180 4" Alternator w/Isolated Ground Terminal BlockZeus A275L J180 4" Alternator with Isolated Ground & 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

Zeus A275L J180 4" Alternator with Isolated Ground & 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 Applications:

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

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: 18038439806

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4.1 ★★★★★
Based on 508 reviews
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J
Verified Purchase
JenR
Chelsea, US
★★★★★ 5
Affordable shoes that actually hold up
Size: 8, Color: White
I bought these for my son to wear to a quinceañera since he needed plain white shoes and I didn’t want to spend much for a one-time event. They ended up being his favorite pair. He’s worn them to school several times a week for the past 7 months, and they’ve held up really well. There’s some normal wear, but they still look good and he says they’re comfortable. I’m pleasantly surprised by the quality for the price and will likely buy another pair soon.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 6, 2026
B
Verified Purchase
Bc Sam
Phoenix, US
★★★★★ 5
SNEAKER SNEAKER!
Size: 13, Color: White
DONT BUY These, Let me keep all of them because they are my go to summer shoe!! These are great! real leather and they don't make your feet feel like there in plastic wrap, they are comfortable and worth the buy! But like I said don't buy them just let me keep buying them!.
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Reviewed in the United States on May 26, 2026
A
Verified Purchase
Amazon Customer
Chelsea, US
★★★★★ 5
Very nice look
Size: 13 Wide, Color: Brown
Very nice look, sole is comfortable, inside upper leather is a bit stiff. Not enough to hurt but not soft. I would purchase another color.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 28, 2026
L
Verified Purchase
les tuttle
Massapequa, US
★★★★★ 3
Nice shoes but no half sizes.
Size: 11, Color: Brown
I had to return the shoes because they do not have half sizes. Other shoes i always wear an 11. That was tight with these and 12 would be to big.
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Reviewed in the United States on May 10, 2026
W
Verified Purchase
W. Arroyo
Chelsea, US
★★★★★ 5
Great shoes
Size: 9.5 Wide, Color: Black/City Skyline/Egret
Great-looking casual shoes that are very comfortable to wear. Perfect for evening outings and long periods on your feet. Stylish, well-made, and comfortable from day one. Highly recommended!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on June 3, 2026

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