![ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018]](https://cdn.shopify.com/s/files/1/0469/0945/6544/files/107334XL.jpg?v=1763589232)
Shipping Estimate
USA
- USA
- CAN
- USA
- CAN
Ships within 48 hours · Estimated delivery Jul 9 - Jul 14
Promo Codes Available:
For Your Every Summer RSVP, with Code: SUMMER15
Description
ARCO Marine Zeus A225S Vortec Alternator w/Regulator [4018]Zeus A225S Vortec 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 A225S Vortec 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
- 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 - Internal/External
- 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 Mando type alternators using Vortec/ GM pad mounting feet (Found on many Mercruiser and Volvo Penta 3.0GLM, 3.0GLP, 4.3GXi, 5.7GiL, 5.7GXiL Marine Engines.) (GM Blocks)
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 1134 reviews
Sort
Product Reviews
★★★★★ 5
Highly recommended
Size: 1 PT
very sweet and reasonable price, glad Amazon is providing cheaper and high quality fruits for the family, can not live without Amazon!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 18, 2026
★★★★★ 5
Delicious fresh Blueberries at a fraction of the price!
Size: 1 PT
Absolutely delicious, and so much less expensive than at the store!!
Beautiful plump Blueberries that taste great!
At first I wasn't sure, since they cost so much less than at any store, but I decided to try them just in case they turned out to be good, and to leave a review for others.
They came inside a foil-interior brown bag, each with rubber bands to keep them closed (great idea) and with a frozen water bottle to help keep them cool! That was a very nice added bonus.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 24, 2026
★★★★★ 5
Fresh and Sweet Strawberries with Good Texture
Size: 16 OZ
The 1 lb package of strawberries arrived fresh with a bright color and appealing appearance. The berries had a good balance of sweetness and natural tartness, making them enjoyable on their own or added to yogurt, smoothies, cereal, or desserts. 🍓
The texture was firm without being overly hard, and most of the strawberries were a good size with minimal bruising. They rinsed easily and stayed fresh for several days when refrigerated properly.
The 1 lb container provides a convenient amount for snacking or sharing. Overall, these strawberries offered good freshness, flavor, and versatility for everyday use.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026
★★★★★ 5
Great price, fresh, good flavor. Will order again.
Size: 16 OZ
I took a chance, ordered 2, and was pleasantly surprised by these. Great price, and amazing flavor. 90% of them were ripe and ready to eat. Plump, good size strawberries. They for all healthy and moist as they should be, not one was dried out or starting to go bad. I will buy them again from Amazon now that I know they have quality strawberries to deliver. They were "durable" and survived the delivery to the porch just fine. Yummy!
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 21, 2026
★★★★★ 5
Best strawberries
Size: 16 OZ
This was the best order of strawberries I ever had. They were fresh and tasty and no moisture on the outside.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on May 12, 2026