ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018]
SKU: 80196964373

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 Jul 4 - Jul 9

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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: 80196964373

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Steven Knipp
Alexandria, US
★★★★★ 5
So many uses for this shelves
Easy to assemble and true to size i use mine as an mini Rc crawler display. Very sturdy and cleans well.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 14, 2026
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P. Hinze
Grantham, US
★★★★★ 5
Will probably buy another one!
Size: 7.9"D x 39.4"W x 34.3"H, Color: Black, Size: 7.9"D x 39.4"W x 34.3"H, Color: Black
Looks great, LED strip is a nice touch. The unit is relatively lightweight while still being quite sturdy. There were a lot of parts and it took some time to assemble, but the instructions were very clear - just step-by-step drawings but everything was labeled clearly. I was pleasantly surprised that the hardware that is used to put it together is better than you’ll often find with low-cost shelving and furniture too, which gives you confidence while assembling. Just don’t over-tighten anything to avoid cracking or stripping the parts.
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Reviewed in the United States on January 26, 2026
B
Verified Purchase
#BISkuTluV43
Omaha, US
★★★★★ 4
Nice product, wall mounting could be easier
Size: 7.9"D x 39.4"W x 34.3"H, Color: White
Easy to put together, nice finish. Missing a star cause mounting it to the wall is a lil more difficult than it should be. I would never use the wall anchors to mount this
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Reviewed in the United States on February 23, 2026
T
Verified Purchase
Terence
Port Orchard, US
★★★★★ 5
So happy with it!
Size: 8.6"D x 23.6"W x 33.8"H, Color: Black
Such a great quality and looks amazing in my man cave by all the electronics n gaming set ups!!!! Love it!!!!
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Reviewed in the United States on March 11, 2026
A
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Amazon Customer
Belleville, US
★★★★★ 5
Love it 😊
Size: 7.9"D x 39.4"W x 34.3"H, Color: Brown
This is an amazing product, It holds quite a bit, very durable and I havent had any trouble with it besides the led lights that are on the top wont stick. Other than that, its very easy to use and can hold alot of weight.
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Reviewed in the United States on February 20, 2026

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