SKU: 19309843696

ARCO Marine Zeus A275L 3.15 Alternator w/Isolated Ground Terminal Block [4019]

Sale price$493.52 Regular price$548.35
Save 10%

Pay in installments of $137.09 with ShopPay, AfterPay and Klarna

Shipping Estimate
USA
  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 17 - Sep 22

Promo Codes Available:

For Your Every Summer RSVP, with Code: SUMMER15

Description

ARCO Marine Zeus A275L 3.15 Alternator w/Isolated Ground Terminal Block [4019]Zeus A275L 3. 15 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 3.15 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 Application:

  • Replaces most small case styles using a 3.15" saddle style mount (e.g., Hitachi, Lucas, Mitsubishi). Most Yanmars. Requires Standard single "V" belt upgrading to a Serpentine System

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: 19309843696

Discover Niche Categories That Outsell

Top-Converting Item to Boost Your Average Order

4.4 ★★★★★
Based on 17 reviews
Sort
Highest Rating
Newest First
Oldest First
Product Reviews
A
Verified Purchase
Amazon Customer
Phoenix, US
★★★★★ 5
Cute
Size: 9, Color: Sand Suede
Very cute, stylish & comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 22, 2026
L
Verified Purchase
Luz talavera
Battle Creek, US
★★★★★ 5
Really comfortable
Size: 9, Color: Sand Suede
Really comfortable
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
J
Verified Purchase
Jen Merchlewitz
Pawtucket, US
★★★★★ 1
Platform too squishy, not supportive
Size: 11, Color: Sand Suede
The soles on these shoes while they feel comfortable do not provide enough support. I ended up rolling my ankle when walking across a concrete lot when I stepped on a couple of rocks. The soles were so mushy that the side of my foot just rolled out. Due to the height my ankle traveled from the platform shoe to the ground … internal damage happened. I had to have surgery to repair the ligaments providing ankle support. So tread carefully.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 8, 2026
R
Verified Purchase
raylaine henderson
Lake Worth, US
★★★★★ 5
The most comfy shoes I own!
Size: 9.5, Color: Sand Suede
Do you know what I mean when I say these shoes are so ugly they are cute? They are not the prettiest shoes but boy do I love them!!! And I get tons of compliments all the time. They are sooooo comfortable! It’s like walking on cushions! They run a little big so I would suggest going down a 1/2 of size. I wear them with dresses and pants. I can wear these all day and that’s important for a 60ish year old woman! A little pricey but well worth every penny!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on August 11, 2025
A
Verified Purchase
Anapaula
Lake Worth, US
★★★★★ 5
Love them
Size: 5.5, Color: Red Pepper
I have gotten so many compliments on these shoes! They’re true to size and comfortable. Because of the material feet might sweat easier if hot but they dry quick. Quality is great and the color looks good, it’s more of a orange/red color. I got a 5.5 size
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026

recommand products