![ARCO Marine Zeus A225S Vortec Alternator w/Terminal Block [4017]](https://cdn.shopify.com/s/files/1/2785/3654/files/107333XL.jpg?v=1740662686)
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Description
ARCO Marine Zeus A225S Vortec Alternator w/Terminal Block [4017]Zeus A225S Vortec 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 OEM
Zeus A225S Vortec 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
- 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 - External Only
- 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
4.4 ★★★★★
Based on 13 reviews
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Product Reviews
★★★★★ 5
Love the style and Multi pockets!
Being a traveling float Phlebotomist for a very large company I need a bag that is extremely well-made holding my schedules.. my books, my PPE outfit, and all other essentials I need for my position. This bag is definitely the one very well-made, multi pockets more than enough room for everything that I need to carry all my equipment for me… to each job. Definitely would recommend this to anybody who travels in their job. Definitely purchased from this company again. Shipping was very fast and the product is in my eyes perfect.!
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Reviewed in the United States on January 1, 2026
★★★★★ 4
Spacious
Great material, easy to clean and repels water. I love the zipper to close the opening, carrys a lot and i love the large side pocket and 2 small pockets on ends great for keys for easy find
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Reviewed in the United States on April 24, 2023
★★★★★ 5
Perfect campus bag!!
Color: Leopard Spots
Used it as a school bag for college since I prefer shoulder bags over backpacks. Sturdy. Holds SO MUCH! Books, binders, School materials, food and snacks, giant water bottles....and CUTE asl!!! Got this in my last year of college. Wish I had found this bag sooner so I could have used it throughout all of my college years!
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Reviewed in the United States on September 9, 2025
★★★★★ 5
Beautiful, sturdy and comfortable!
I am very satisfied with this bag! I honestly thought that because the price was so low that it would be more of a lightweight beach bag, however, it is very sturdy and holds so many things. The straps are very thick and comfortable. There are a few pockets inside zippered pockets of some side pockets and a front zipper pocket. I get so many compliments on this bag. Two of my friends actually bought the same bag! I honestly want to buy another one just in case somewhere down the road something ever happens to this one because I am obsessed with it. I use it every day for work is very easy to clean as well. It’s almost like a neoprene type of fabric so it wipes off very easily. I highly recommend this product.
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Reviewed in the United States on September 8, 2023
★★★★★ 5
Good quality bag
Color: Black
Very sturdy construction. Big enough to hold a tablet and a book. I am happy with this pruchase
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Reviewed in the United States on December 7, 2025