SKU: 66087855866

ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018]

Sale price$395.01 Regular price$438.90
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Ships within 48 hours · Estimated delivery Sep 18 - Sep 23

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Description

ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018]Zeus A225S Vortec Alternator with Regulator 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 OEM Components

Zeus A225S Vortec Alternator with Regulator

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
  • 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. Our advanced coating absorbs less heat, keeping the A225S cooler. This translates to more amperage for sustained periods.
  • For maximum performance or lithium battery charging, use an ARCO Zeus Bluetooth alternator regulator.
  • SAE J1171 Certified.
  • Proudly made in the U.S.A.

Technical Specifications:

  • Voltage - 12v
  • Field Type - P
  • Rotor Poles - 16
  • Stator Size - 130mm
  • Frame Size - Small
  • Weight - 12lbs/6.7kg
  • Regulation - Internal/External
  • 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) - 254 Amps
  • Sustained Cruising Output (Hot, 6,000 RPM) - 187 Amps
  • Sustained Idle Output (Hot, 3,000 RPM) - 157 Amps

Mounting Application:

  • Replaces Mando type alternators using Vortec/ GM pad mounting feet (Found on many Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, 5.7GXiL Marine Engines.) (GM Blocks)
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: 66087855866

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Gina
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★★★★★ 5
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Reviewed in the United States on January 11, 2026
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Vanessa
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Reviewed in the United States on February 19, 2025
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Bridget Masiclat
Alexandria, US
★★★★★ 3
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Format: Kindle
This one fell a little flat. The ending felt rushed after so much build up. I still am happy to have read it and to learn more about the LGBTQIA experience - even if fictional.
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Reviewed in the United States on January 7, 2026
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Arabella
Boise, US
★★★★★ 4
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Format: Hardcover
This book made me laugh cry and everything in between. In my opinion, Last Night at The Telegraph Club was a better book overall but this one was also good and i love the way the prequels story was connected to this books main character. I will say the beginning is a bit dry but it picks up towards the middle, stick with it!
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Reviewed in the United States on January 4, 2023
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Marty Preslar
Waukegan, US
★★★★★ 5
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