![ARCO Marine Zeus A275L J-180 4" Alternator w/Terminal Block [4022]](https://cdn.shopify.com/s/files/1/0469/0945/6544/files/107323XL.jpg?v=1763589230)
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Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
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Description
ARCO Marine Zeus A275L J-180 4" Alternator w/Terminal Block [4022]Zeus A275L J 180 4" 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. It runs 8 20% cooler than incumbent alternators due to heat shedding coatings, a refrigerator on the housing exterior, dual cooling fans, and
Zeus A275L J-180 4" 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.
- It runs 8 - 20% cooler than incumbent alternators due to heat-shedding coatings, a refrigerator on the housing exterior, dual cooling fans, and 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 or lithium battery charging for maximum performance.
- 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 - External Only (These units will come with a terminal block and a P-Type harness. They will only work with an external regulator, such as an ARCO Zeus Bluetooth alternator regulator.)
- 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 most Volvo Penta alternators using a 4” J180 saddle-style mount
Quick Guide (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
4.3 ★★★★★
Based on 1805 reviews
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Product Reviews
★★★★★ 5
Great and entertaining dog toy
Color: 4 Color For XS/S 2.2", Size: Small
These are probably my dog’s favorite toys currently. He loves the squeaking and they function well as a ball for fetching as well.
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Reviewed in the United States on May 28, 2026
★★★★★ 5
Husky loves them
Color: 4 Colors For M/L 3.1", Size: Large
good size and nice quality
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Reviewed in the United States on May 26, 2026
★★★★★ 5
Our dog loved these?!!
Color: 4 Color For XS/S 2.2", Size: Small
We have a miniature long haired Dachshund named Winston and OMG HE ABSOLUTELY LOVES THESE squeaky toys. I swear he must have played with them for 6 hours straight the first time we gave it to him. He love it so much that he even took it to bed with him that 1st night.
Many months later these are still his favorite toys. I think he likes the saucer-like shape of them & how they fit & feel in his mouth. The squeakers don't last very long but that's always been the case with squeaky toys & it doesn't seem to bother Winston much either.
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Reviewed in the United States on May 19, 2026
★★★★★ 5
My dog loves these
Color: 4 Colors For M/L 3.1", Size: Large
My dog absolutely goes crazy over these squeaky toys. They bounce all directions and he can entertain himself for a bit til I'm free. However, if your are trying to talk on phone or with family you might want to hide them for a while. Noisy. Lol
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Reviewed in the United States on May 21, 2026
★★★★★ 5
The Greatest Entertainment Toy Ever
OMG what toys, the best ever. Reasonable price, well made, safe, the noise level is low and my little Jade'n (Yorkie) loved them, mainly the blue and red. I order the small sizes and it was perfect for him. Jade'n loved it when l bounce them, plus it gives him a healthy exercise workout. I can't say love them to much as l do and the one important thing is they had no rubber or plastic smell and cleaning them up is a breeze. Jade'n chews alot of his toys up, but, the durability on these are fantastic as he hasn't been able to damage them and that to me is a well made toy. Love, love them.... thank you.....
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Reviewed in the United States on June 17, 2025