![ARCO Marine Zeus A275L Transit Alternator w/Regulator [A275L-12-TR-IE-49K6]](https://cdn.shopify.com/s/files/1/0538/9769/1296/files/103951XL.jpg?v=1715749236)
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Description
ARCO Marine Zeus A275L Transit Alternator w/Regulator [A275L-12-TR-IE-49K6]Zeus A275L Transit 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 A275L Transit 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
- It is 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 A275L cooler. This translates to more amperage for sustained periods.
- Use an ARCO Zeus Bluetooth alternator regulator for maximum performance or lithium battery charging.
- SAE J1171 Certified.
- Made in the U.S.A.
Technical Specifications:
- Voltage - 12v
- Field Type - P
- Rotor Poles - 16
- Stator Size - 138mm
- Frame Size - Large
- Weight - 14.9 lbs/6.7 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) - 311 Amps
- Sustained Cruising Output (Hot, 6,000 RPM) - 227 Amps
- Sustained Idle Output (Hot, 3,000 RPM) - 198 Amps
- Max Continuous Operating Temperature - 110°C / 230°F
Mounting Application:
- Replaces Ford Transit alternators 3.5L & 3.7L Gas engines 2015-2022
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
4.2 ★★★★★
Based on 30 reviews
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Product Reviews
★★★★★ 1
Not good, poor quality from Eufy products
I bought this as a last try to fix my unit.
I wanted to share my experience with the Eufy S1 Pro after owning two units.
Unfortunately, both units had serious issues.
The first one developed multiple problems within less than a year:
Dirty water tank issues
Mop roller lifting motor malfunction
Loud and abnormal noise during dust collection
Eventually stopped working completely
Despite that, I decided to give it another try and purchased a second unit, planning to reuse parts from the first one if needed.
However, the second unit failed even faster. After around 2 months, it stopped performing dust suction from the robot to the base station.
At this point, I cannot recommend this product. The reliability has been very poor in my experience, especially considering the price.
On a positive note, customer support has been responsive and helpful, but unfortunately, the product quality itself did not meet expectations.
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Reviewed in the United States on March 29, 2026
★★★★★ 5
Works just as expected
It fits and is the oem part.
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Reviewed in the United States on April 3, 2025
★★★★★ 1
Bad quality
It goes bad after 1 month
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Reviewed in the United States on February 23, 2025
★★★★★ 5
A definite keeper :)
Size: C20 renewed, Size: C20 renewed
I had a shark that gave out after 3 years. (It didn’t have a mop) I ordered a new one from a different company and the new one I bought was defective so when I saw this one half price renewed I figured it couldn’t hurt because this one was only 50 more than the other one. I’m so glad the other brand was defective. This thing is amazing . The app was easy to set up after I realized the quick start card they send has and old obsolete app. Once I searched and found the right app. It’s called eufy clean . All went as planned. There app has so many things to customize. I have a fluffy carpet in my bedroom and was able to set the suction Lower so it wouldn’t damage the carpet. You can customize what rooms it mops , vacuums or if u want both and how many time it will pass through each room 1 or 2 times . I didn’t want a vacuum with a bag but I’m ok with compromising that . The app also has a section to tell u when it’s time to change parts for maintenance. It mapped my small apt very quickly. Its base is larger but it tucks under the base . My shark had no mapping and just bumped randomly around. So always a tapping while it was cleaning. I find this to be much quieter the only time it’s loud is when it returns back to the base ti dump dirt and that is the sound of a regular vacuum running and it’s only for a minute or 2 at tops. I cant speak for battery life because it’s renewed but it cleaned my on bedroom apart in about 40 minutes with 60% battery left. It came in its original box like it was brand new. Only a few indentations on the top of the actual vacuum from what I saw. As for longevity we will see but as of now this renewed item is a definite keeper.
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Reviewed in the United States on March 22, 2026
★★★★★ 5
Mapping all areas first
Size: C20 renewed
Great vac
Quick delivery
Easy set up
Mop wasn’t responding and customer service was amazing to help troubleshoot and get the problem resolved.
A little frustrated at first because the chat wasn’t as helpful and I could not reach them by phone but the email techs replied immediately and promptly responses and help.
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Reviewed in the United States on September 28, 2025