ARCO Marine Zeus A275L 1"-2" Single Foot Alternator w/Terminal Block [4027]
SKU: 59873534851

ARCO Marine Zeus A275L 1"-2" Single Foot Alternator w/Terminal Block [4027]

Sale price$444.02 Regular price$493.35
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Ships within 48 hours · Estimated delivery Jul 6 - Jul 11

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Description

ARCO Marine Zeus A275L 1"-2" Single Foot Alternator w/Terminal Block [4027]Zeus A275L 1" 2" Single Foot 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. Runs 8 20% cooler than incumbent alternators due to: Heat shedding coatings, Rectifier located on housing exterior, Dual cooling

Zeus A275L 1"-2" Single Foot 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. 
  • Runs 8 - 20% cooler than incumbent alternators due to: Heat shedding coatings, Rectifier located on 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 domestic styles using a single 1” or 2” mounting foot (e.g., Motorola, Prestolite)

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: 59873534851

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Richard Klementovich
Phoenix, US
★★★★★ 1
Cheaply Made
Not worth the money it costs imo
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Reviewed in the United States on March 14, 2026
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Michelle Renee Shaffar
Louisville, US
★★★★★ 5
Great for use atop the bedside table!
Very nice! I bought this for my father for his birthday, and he really liked the gift! It's a nice little place for him to keep all of his essentials together on the bedside table. No more losing his watch, keys, wallet, etc. or knocking them off the table!
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Reviewed in the United States on April 12, 2026
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Joselyn
Chelsea, US
★★★★★ 5
Excellent stylish organizer!
Excellent design and quality of material, practical and functional!
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Reviewed in the United States on October 1, 2025
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Charles
Charlottesville, US
★★★★★ 5
Love it
It looks good and is well made.
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Reviewed in the United States on November 2, 2025
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Elizabeth Barrientos
Natrona Heights, US
★★★★★ 5
Bedside organizer
Perfect gift for my boyfriend. It is sturdy and is able to get all his stuff in it, they size is perfect it fits great on his nightstand stand, it was easy to use/organize all his stuff and it is light weight
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Reviewed in the United States on January 3, 2026

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