
ARCO Marine Premium Replacement Inboard Alternator w/55mm Multi-Groove Pulley - 12V 65A
Upgrade your marine vessel's electrical system with our Premium Replacement Inboard Alternator. Designed specifically for boating applications, this high-performance alternator ensures reliable power supply to all your marine electronics, keeping your adventures on the water smooth and uninterrupted.
Key Features
- Superior Performance: Engineered for optimal performance and reliability, ensuring consistent power output even in demanding marine environments.
- Precision Manufacturing: Manufactured with meticulous precision and quality to meet the highest standards, providing longevity and dependable service.
- OEM Standards: Meets or exceeds Original Equipment Manufacturer (OEM) performance specifications before packaging, guaranteeing compatibility and efficiency.
- Included Pulley: Comes with a 55mm multi-groove serpentine pulley, simplifying the installation process and ensuring a perfect fit.
Warranty Information
We stand by the quality of our products. When properly installed, all ARCO products are warrantied against defects in materials and workmanship for:
- 12 Months: For leisure use
- 90 Days: For commercial or racing applications
Enhance your warranty coverage by adding an extra year to your rotating electric ARCO product, including Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters. To qualify, register your product within 30 days of purchase by visiting arcomarine.com/product-registration.
Compatibility
This alternator is a direct replacement for the following models:
| Brand | Model Number |
|---|---|
| VOLVO | 3862665 |
| VOLVO | 3884950 |
| SIERRA | 18-5882 |
| SIERRA | 18-6845 |
Please note: This product may not be returned to the original point of purchase. For any issues or concerns, contact the manufacturer directly.
Specifications
| Amperage: | 65A |
| Voltage: | 12V |
| Box Dimensions: | 8" H x 8" W x 9" L |
| Weight: | 10.3 lbs |
| UPC: | 693006009544 |
Additional Resources
For installation guidance, refer to our Quick Guide (PDF).
Upgrade your marine vessel's electrical system with our Premium Replacement Inboard Alternator. Designed specifically for boating applications, this high-performance alternator ensures reliable power supply to all your marine electronics, keeping your adventures on the water smooth and uninterrupted.
Key Features
- Superior Performance: Engineered for optimal performance and reliability, ensuring consistent power output even in demanding marine environments.
- Precision Manufacturing: Manufactured with meticulous precision and quality to meet the highest standards, providing longevity and dependable service.
- OEM Standards: Meets or exceeds Original Equipment Manufacturer (OEM) performance specifications before packaging, guaranteeing compatibility and efficiency.
- Included Pulley: Comes with a 55mm multi-groove serpentine pulley, simplifying the installation process and ensuring a perfect fit.
Warranty Information
We stand by the quality of our products. When properly installed, all ARCO products are warrantied against defects in materials and workmanship for:
- 12 Months: For leisure use
- 90 Days: For commercial or racing applications
Enhance your warranty coverage by adding an extra year to your rotating electric ARCO product, including Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters. To qualify, register your product within 30 days of purchase by visiting arcomarine.com/product-registration.
Compatibility
This alternator is a direct replacement for the following models:
| Brand | Model Number |
|---|---|
| VOLVO | 3862665 |
| VOLVO | 3884950 |
| SIERRA | 18-5882 |
| SIERRA | 18-6845 |
Please note: This product may not be returned to the original point of purchase. For any issues or concerns, contact the manufacturer directly.
Specifications
| Amperage: | 65A |
| Voltage: | 12V |
| Box Dimensions: | 8" H x 8" W x 9" L |
| Weight: | 10.3 lbs |
| UPC: | 693006009544 |
Additional Resources
For installation guidance, refer to our Quick Guide (PDF).
Original: $251.99
-70%$251.99
$75.60Description
Upgrade your marine vessel's electrical system with our Premium Replacement Inboard Alternator. Designed specifically for boating applications, this high-performance alternator ensures reliable power supply to all your marine electronics, keeping your adventures on the water smooth and uninterrupted.
Key Features
- Superior Performance: Engineered for optimal performance and reliability, ensuring consistent power output even in demanding marine environments.
- Precision Manufacturing: Manufactured with meticulous precision and quality to meet the highest standards, providing longevity and dependable service.
- OEM Standards: Meets or exceeds Original Equipment Manufacturer (OEM) performance specifications before packaging, guaranteeing compatibility and efficiency.
- Included Pulley: Comes with a 55mm multi-groove serpentine pulley, simplifying the installation process and ensuring a perfect fit.
Warranty Information
We stand by the quality of our products. When properly installed, all ARCO products are warrantied against defects in materials and workmanship for:
- 12 Months: For leisure use
- 90 Days: For commercial or racing applications
Enhance your warranty coverage by adding an extra year to your rotating electric ARCO product, including Tilt/Trim Motors, Alternators, Outboard Starters, and Inboard Starters. To qualify, register your product within 30 days of purchase by visiting arcomarine.com/product-registration.
Compatibility
This alternator is a direct replacement for the following models:
| Brand | Model Number |
|---|---|
| VOLVO | 3862665 |
| VOLVO | 3884950 |
| SIERRA | 18-5882 |
| SIERRA | 18-6845 |
Please note: This product may not be returned to the original point of purchase. For any issues or concerns, contact the manufacturer directly.
Specifications
| Amperage: | 65A |
| Voltage: | 12V |
| Box Dimensions: | 8" H x 8" W x 9" L |
| Weight: | 10.3 lbs |
| UPC: | 693006009544 |
Additional Resources
For installation guidance, refer to our Quick Guide (PDF).









