![ARCO Marine Zeus A225S 1"-2" Alternator w/Terminal Block [4014]](https://cdn.shopify.com/s/files/1/0469/0945/6544/files/107332XL.jpg?v=1763589231)
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Description
ARCO Marine Zeus A225S 1"-2" Alternator w/Terminal Block [4014]Zeus A225S 1" 2" 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 1"-2" 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 most domestic styles using a single 1 or 2” mounting foot (e.g., Motorola, Prestolite).
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
4.1 ★★★★★
Based on 2128 reviews
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Product Reviews
★★★★★ 5
Perfect for a backpack or a purse
Color: Upgrade-black, Size: 14 Inch, Color: Upgrade-black, Size: 14 Inch
I love this black backpack. It has gold zippers and brown accents and it has a pocket in the front two on the side three inside and a pocket on the back of the laptop pocket. I have a disability and have to carry extra stuff so this is a perfect size for me to wear in my back every day. It’s black nylon so it should stay clean. I tend to drop things. I think this will be great, but even without a disability, this is a great backpack. It’s so cute.
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Reviewed in the United States on October 7, 2025
★★★★★ 5
Perfect day bag!
Color: Upgrade-black, Size: 15.6 Inch
Super convenient and lightweight. I used it for two back-to-back conferences last week and it was PERFECT for what I needed to tote along all day. Fits my regular sized computer (15-16 inch) and even held my water bottle (which is larger than a regular plastic water bottle).
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Reviewed in the United States on February 27, 2026
★★★★★ 5
Great backpack
Color: Upgrade-black, Size: 15.6 Inch
Stylish and lightweight for travel and work. Sturdy, comfortable straps. After trying about 5 different backpacks, I’m keeping this one.
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Reviewed in the United States on May 25, 2026
★★★★★ 5
Stylish, light (laptop, phone, notebook & pen) +
Color: Upgrade-apricot, Size: 15.6 Inch, Color: Upgrade-apricot, Size: 15.6 Inch
Perfect for work! I use it for laptop, charger and few items necessary at work. I have a few blocks to walk from parking to work location and this bag has replaced last backpack and purse. Much easier to carry one item than two or more. Plus, it has enough room if you need to use it for clothes and toiletries (road-trip) or carry-on.
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Reviewed in the United States on February 12, 2026
★★★★★ 4
Good quality
Color: Regular-light Pink, Size: 14 Inch
Good quality and value for your money. The fabric is soft and the right storage capacity for my 14” laptop!
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Reviewed in the United States on March 13, 2026