SKU: 63681719356

ARCO Marine Zeus A225S 3.15 Alternator w/Isolated Ground (Common Rail) Terminal Block [4013]

Sale price$395.01 Regular price$438.90
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Ships within 48 hours · Estimated delivery Jul 25 - Jul 30

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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:
  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: 63681719356

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4.7 ★★★★★
Based on 28 reviews
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Mertella Tait
Charlottesville, US
★★★★★ 5
More beautiful than pictured - for real!
Color: Ocean Blue
Looks luxurious, very very beautiful, stones so pretty and looks real. I bought 3 smallee than the standard size and cannot fit my hand. Gowa half way around aa i jave big wrists but they are so beautiful i wont return them. Unlwas theee is a 7.5 or 8 available. Will upload pictures when im home
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Reviewed in the United States on December 23, 2025
N
Verified Purchase
Nancy Lovell
Pawtucket, US
★★★★★ 5
Nice style !
Color: Pearl White
Very nice style can go with anything comfortable to wear.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on February 7, 2026
A
Verified Purchase
Almira Pacleb
Cuba, US
★★★★★ 1
Defective clasp
Color: Sweet Lilac, Color: Sweet Lilac
I recently purchased this bracelet and while I love the design, the lock is unfortunately not functional and won't stay secure.​ I am torn on this review. The bracelet is absolutely stunning I'd give the look a 5-star. It looks high-end and the design is perfect. ​The functionality is a 1-star. The lock is completely defective and does not stay closed, which makes it unwearable. It's disappointing to have such a beautiful piece that I can't actually use. If the clasp worked, this would be a perfect purchase.
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Reviewed in the United States on December 29, 2025
P
Verified Purchase
Penny
Massapequa, US
★★★★★ 4
Beautiful but hard to lock/closed
Color: Pearl White
It’s really nice. The only reason I put only 4 stars is because it’s hard to close/lock it by yourself. Takes a few seconds, but everntually you’ll get it. Love that it’s mother of pearl and 18k gold plated, you won’t worry that it will smell like a rust. Material and quality is good. I have a big wrist and the size is just perfect for me. This is less than 8 because 8 is too big for me and 7 is super right only, not much allowance.
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Reviewed in the United States on March 29, 2026
D
Verified Purchase
Danielle R.
Los Angeles, US
★★★★★ 5
Prettiest shade of blue MOP & beautiful bracelet!!!
Color: Ocean Blue
I instantly fell in love with this bracelet simply because of the blue Mother Of Pearl!! I love that it's 14 kt gold over stainless steel, because it won't turn or rub off so easily. It's absolutely gorgeous on the wrist & I can't stop wearing it! 10/10!!!
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Reviewed in the United States on October 24, 2025

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