SKU: 97419288069

ARCO Marine Zeus A225S 3.15 Alternator w/Case Ground (Common Rail) Terminal Block [4012]

Sale price$345.51 Regular price$383.90
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Ships within 48 hours · Estimated delivery Aug 1 - Aug 6

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Description

ARCO Marine Zeus A225S 3.15 Alternator w/Case Ground (Common Rail) Terminal Block [4012]Zeus A225S 3. 15 Alternator with Case 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

Zeus A225S 3.15 Alternator with Case 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:
  1. 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
SKU: 97419288069

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hms
Fort Morgan, US
★★★★★ 5
Great bra!
Color: Dark Beige, Size: 38D
I have several different bras from this brand. This is a really good minimizer. It has a nice wide strap. I don’t love the clasp as it is covered in a hard material, but overall it is a good bra that you can wear all day under form fitting shirts.
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Reviewed in the United States on May 11, 2026
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Book Lover
Battle Creek, US
★★★★★ 1
Uncomfortable
Color: Light Beige, Size: 38DD
In my search for a comfortable well-fitting bra, I came across this one. Reviews were good, so I ordered one. Half way through the day, I had to take it off. This is the most uncomfortable bra ever. This one went on to the "uncomfortable pile" pretty quick Not full coverage and not supportive. Side coverage is pretty good but straps are thin and do not lift.
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Reviewed in the United States on March 25, 2026
A
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abby
Cuba, US
★★★★★ 5
Best Bra for Top Heavy Girlies!
Color: Light Beige, Size: 40C
I tried HSIA in the past but non of the bras fit right but this bra is the best! I’m glad I gave HSIA another chance because this is the best bra I’ve ever had! I’m already top heavy and doesn’t add extra bulk. It’s comfortable and breathable. In top of all that it’s affordable!
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Reviewed in the United States on April 25, 2026
A
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Angel S.
Cuba, US
★★★★★ 3
Much smaller cups
Color: Light Beige, Size: 36I
This has much smaller cups than indicated
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Reviewed in the United States on April 15, 2026
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Enndot
Whiting, US
★★★★★ 5
Good Price, Great Bra
Color: Dark Pink, Size: 44G
These bras are outstanding! Both the band and cup size fit are exactly as they should. Having bottom heavy breast means I always have to have a underwire. Lace material with underwire can be tricky for us with larger bra sizes, as the underwire can be uncomfortable and the lace tends to be hard and scratchy on the skin. A beautiful garment can become uncomfortable and tear easily, if not made well. That has not been my experience with these bras at all. I have purchased them several times. The material is nice and softens after it has been washed. They maintain shape and hold well. For this quality and delicacy, I would normally pay upwards of $60 per bra. With these, I get great price, quality material and excellent comfort, style and fit.
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Reviewed in the United States on May 31, 2026

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