![ARCO Marine Zeus A225S 3.15 Alternator w/Isolated Ground (Common Rail) Terminal Block [4013]](https://cdn.shopify.com/s/files/1/0538/9769/1296/files/107521XL.jpg?v=1738951066)
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Description
ARCO Marine Zeus A225S 3.15 Alternator w/Isolated Ground (Common Rail) Terminal Block [4013]Zeus A225S 3. 15 Alternator with Isolated Ground (Common Rail) & 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, running 8 20% cooler than incumbent alternators due to: Heat shedding coatings Rectifier located on housing
Zeus A225S 3.15 Alternator with Isolated Ground (Common Rail) & 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, running 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 for sustained amperage output.
- Use the ARCO Zeus Bluetooth Alternator Regulator for maximum performance or lithium battery charging.
- SAE J1171 Certified.
- Models are available with an internal/external voltage regulator.
- Proudly made in the U.S.A.
Technical Specifications:
- Voltage - 12v
- Field Type - P
- Rotor Poles - 16
- Stator Size - 130mm
- Frame Size - Small
- Weight - 12 lbs/5.4 kg
- Regulation - Internal/External (Internally regulated with adaptor for optional external regulation.)
- 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
- Max Continuous Operating Temperature - 110°C / 230°F
Mounting Application:
- Must be used on Yanmar Common Rail introduced after 2013 (JH-CR, 3JH40, 4JH45, 4JH57, 4JH80, 4JH110)
Quick Guide (pdf)
Brochure (pdf)
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
4.7 ★★★★★
Based on 20 reviews
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Product Reviews
★★★★★ 5
Love this case!
Color: Light Pink
This is an awesome case! Fits perfectly and love the color. Sturdy and does the job! Will be great for college!
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Reviewed in the United States on April 7, 2026
★★★★★ 5
Perfect fit, secure pencil slot, great touchpad.
Color: Navy Blue
EXCELLENT Keyboard case. I tried several to find the right one. Tried a bluetooth keyboard by itself, but there wasn't the convenience of an "all in one". Tried another one that had a magnetic connection between the ipad and the keyboard, but the ipad was not as positionable as I needed it to be. This "folio-type" case is similar to what I use for all my other tablets and devices - slim, securely closing, perfectly fitting my 3rd gen ipad pro - AND the slot for the apple pencil is PERFECTION! The touchpad is a little stiffer than I like but then I realized I DON'T actually have to press it to use it - just a tap accomplishes the same thing. I rely on the touchpad for a lot and this case is just really exactly what I need.
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Reviewed in the United States on February 27, 2026
★★★★★ 5
good value and battery life
Color: Purple
Love this!! the keyboard has a good life on it and charges pretty fast. I at first didn't really like that it detaches, but being able to hold the keyboard in my lap and type on the screen while I sit on the sofa is actually pretty nice. the trackpad does have a bit of a learning curve, but gestures/hotkeys are all listed on the bottom so it's easy to check whenever necessary.
The material of the case itself also cleans really easy. I spilled a drink on it and it wiped right off. I feel like this is a pretty good value all things considered, especially when similar products at big box stores can eb a couple hudnred bucks.
The only downside is that the keyboard, while slim, does add a bit of bulk to the case. It's not a huge deal for me, but my boyfriend who also has an ipad did notice the difference immediately.
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Reviewed in the United States on April 20, 2026
★★★★★ 3
Works
Color: Light Gray
Heavy! It is a nice case and the keyboard works good. Turns off randomly, but not too annoying. This case is heavy though! It at least triples the weight of my iPad, which is opposite the reason I got an iPad Air. Too late to return, I just take the keyboard out, but it must be the magnets in the case that are so heavy.
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Reviewed in the United States on February 5, 2026
★★★★★ 5
Fantastic keyboard!
Color: Navy Blue, Color: Navy Blue
Pleasantly surprised!! And less than half the price of an ipad folio keyboard - I know, one feels like one has to stay in brand. So I was nervous about buying a keyboard that wasn't made by Apple. But to be honest, the Apple keyboards and mice have betrayed me on numerous occasions. They have not earned my loyalty and need to reassess their dubious life choices.
I needed a protective cover to stop my cats doom scrolling while I am asleep. I am OK with them using the internet - even though I have had random people text me back a picture of a large feline left nostril and just the letters WFT? It is what it is. I think they are little geniuses. But they scratch the ipad surface which is annoying. So I thought, what the heck - I am about to do my RN-BSN online and need a way to make my ipad transportable while protected, and set up so I can easily bang out some homework assignments on the run.
Easy set up! What a relief! Tech usually hates me - sees me coming from a mile off and starts planning to at best ruin my day, and at worst have me calling my therapist. At first I started reading the instructions and my teeth hurt from the bad translation into English. But even with that negative energy I was able to set it up very quickly. Everything just WORKED!! I know. I set a low bar. These days one has to. This time I didn't need to.
The cover is sturdy, soft and coffee resistant, thank goodness. The keyboard just plops on, connects through magic and immediately makes me feel like I am not as stupid as I thought! Absolutely recommend this wonderful keyboard - I dunno who do this voodoo but I am very excited. Crack on my lovelies! Make those dreams a reality.
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Reviewed in the United States on June 7, 2026