![ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018]](https://cdn.shopify.com/s/files/1/0538/9769/1296/files/107334XL.jpg?v=1736219669)
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- USA
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Ships within 48 hours · Estimated delivery Jul 15 - Jul 20
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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:
- 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
4.5 ★★★★★
Based on 1425 reviews
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Product Reviews
★★★★★ 3
Basic everyday napkins but very thin
These are about as basic as paper napkins get. They work fine for everyday meals and quick cleanup, but they are definitely on the thinner side.
You usually end up needing more than one for messier foods or larger spills because they don’t feel especially absorbent or heavy-duty.
That said, the large count is convenient for everyday household use, cookouts, lunch packing, or casual gatherings where you go through napkins quickly.
Overall they’re functional budget napkins, just nothing particularly thick or special.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Good purchase
Good price, not bad quality.
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Reviewed in the United States on May 8, 2026
★★★★★ 5
Solid Choice for Everyday Use
Would definitely order again when I run out. Sometimes the basics done well beat the alternatives trying too hard to be special. If you're looking for dependable napkins that won't let you down during dinner or cleanup time, these deliver. No fancy features, no gimmicks - just straightforward functionality at a fair price.
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Reviewed in the United States on April 15, 2026
★★★★★ 5
Good value, good product
These are fine for the money. Absorbent, strong enough. Good value, will re-order these.
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Reviewed in the United States on May 16, 2026
★★★★★ 5
Simple, Durable, and a Great Pantry Staple
I bought these because they were inexpensive, and they turned out to be exactly what I expected in a good way.
They’re durable, have the size and softness of a standard everyday napkin, and the absorbency is solid for normal meals and spills.
The pack is a good size—it fits easily in my pantry but still holds a lot of napkins, so it lasts a long time before needing to restock.
If you’re just looking for simple, reliable napkins at a great price, these are a really good value.
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Reviewed in the United States on March 12, 2026
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