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Ships within 48 hours · Estimated delivery Aug 21 - Aug 26
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Description
ARCO Marine Zeus A225S J-180 3.15" Alternator w/Terminal Block [4010]Zeus A225S J 180 3. 15" 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. Runs 8 20% cooler than incumbent alternators due to: Heat shedding coatings Rectifier located on housing exterior Dual cooling fans OEM
Zeus A225S J-180 3.15" 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. Runs 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. This translates to more amperage for sustained periods.
- For maximum performance or lithium battery charging, use an ARCO Zeus Bluetooth alternator regulator.
- SAE J1171 Certified.
- Proudly made in the U.S.A.
Technical Specifications:
- Voltage - 12v
- Field Type - P
- Rotor Poles - 16
- Stator Size - 130mm
- Frame Size - Small
- Weight - 12lbs/6.7kg
- Regulation - External Only
- 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
Mounting Application:
- Replaces most small case styles using a 3.15” J180 saddle style mount (e.g., Hitachi, Lucas, Mitsubishi) Most Yanmars.
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
4.0 ★★★★★
Based on 8 reviews
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Product Reviews
★★★★★ 5
Totally worth the price!
Color: Lagoon, Style: 2 Blocks
These are great blocks! They are soft yet supportive. Used for yoga, Pilates and on the sits-bones when meditating. All purpose, perfect size, cute, calm color. I have two sets, I like them so much; one for the house and one in the gym.
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Reviewed in the United States on May 4, 2026
★★★★★ 5
Light weight and good support
Color: Lagoon, Style: 2 Blocks, Color: Lagoon, Style: 2 Blocks
Highly Recommend Gaiam Yoga Blocks
The Gaiam yoga blocks are excellent quality and a must-have for any yoga practice. They’re lightweight yet very supportive, making it easy to maintain proper alignment and balance in a variety of poses. The foam is firm but comfortable, with a non-slip surface that stays in place during practice.
These blocks are especially helpful for stretching, improving flexibility, and modifying poses, whether you’re a beginner or more experienced yogi. They’re durable, easy to clean, and hold their shape well over time.
Overall, Gaiam yoga blocks offer great value and reliability. I would definitely recommend them to anyone looking to enhance their yoga or stretching routine. 🧘♀️✨
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Reviewed in the United States on February 6, 2026
★★★★★ 5
Simple, sturdy, and effective
Color: Deep Purple, Style: 2 Blocks, Color: Deep Purple, Style: 2 Blocks
These yoga blocks do exactly what they’re supposed to do. They’re sturdy, supportive, and great for improving balance and flexibility during workouts.
No complaints—solid quality and a reliable addition to any routine.
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Reviewed in the United States on April 21, 2026
★★★★★ 5
good quality, cute color
Color: Deep Purple, Style: 2 Blocks
usable for yoga and stretching, it is durable enough to sit on it while being light and soft. love the color, bought the two pack
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Reviewed in the United States on April 14, 2026
★★★★★ 4
Good for dancers
Color: Lagoon, Style: 2 Blocks
My daughter is an Irish dancer and got these to practice keeping her legs straight. After using for a month we can see a difference. They are sturdy and decent quality. Would give 5 stars but our friends have some that are more comfortable.
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Reviewed in the United States on January 25, 2026