SKU: 23567567572

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

Sale price$395.01 Regular price$438.90
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  • USA
  • CAN

Ships within 48 hours · Estimated delivery Sep 13 - Sep 18

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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: 23567567572

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Amanda Sammon
New York, US
★★★★★ 5
Great Suit
Size: Small, Color: Light Grey
Was a little tight in the shoulders but otherwise fit great and looks good.
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Reviewed in the United States on April 30, 2026
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Valentin Zahrebelnyj
Bozeman, US
★★★★★ 4
Fabrics Great, Size a little Big, Overall Pretty Good
Size: Medium, Color: Dark Navy
This suit was truly great, the size for the pants and the vest were pretty on point, maybe a little long for the pants. The jacket was way too big though compared to the rest. Overall pretty good suit for the price, very surprised at the build quality and faabrics.
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Reviewed in the United States on April 30, 2026
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Hollie
Dallas, US
★★★★★ 5
Awesome quality
Size: 8, Color: Navy Blue-bowtie
Great quality. My son absolutely loves it. The size is spot on and it fits great. Vibrant colors and looks expensive.
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Reviewed in the United States on October 18, 2025
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atlmom
Battle Creek, US
★★★★★ 5
Perfect Suit!
Size: 10, Color: Navy Blue-bowtie, Size: 10, Color: Navy Blue-bowtie
So cute! This slim suit fit my 9 yo son great! He’s 4’7 and 73lbs. He wore it to perform in his school’s talent show and again at Easter. We got tons of compliments both times! It’s a good quality, not cheap materials, and he said it was comfortable (he wore it for hours each time). Love, love, love this cute suit!
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Reviewed in the United States on March 21, 2025
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Flash515
Grantham, US
★★★★★ 5
Great quality for the price
Fits true to size and nice quality for the price. My son looked very handsome in it.
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Reviewed in the United States on October 27, 2025

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