Compufire Non-Vented Electric Rotor - Harley Big Twin & Evolution 1981-1999
About Compufire
Compufire parts and accessories are stocked at Vtwinbikers for Harley-Davidson and Indian Motorcycle applications. Every Compufire item we list is new and sourced through authorized distribution. If you are not certain a part matches your year and model, use Shop by Bike or email our team before you order and we will confirm fitment first.
Restore reliable charging to your classic V-twin with the Compufire Non-Vented Electric Rotor. This direct OEM replacement is engineered for 1981-1999 Harley Big Twin and Evolution engines, ensuring compatibility with your 32A alternator charging system. It's a straightforward solution to maintain your bike's electrical integrity.
Why riders pick this
- Direct OEM replacement for 1981-1999 Big Twin and EVO
- Compatible with 32A alternator charging systems
- Non-vented design for specific applications
- Ensures reliable power generation for your V-twin
- Built for durability and consistent performance
A healthy charging system is crucial for keeping your Harley running strong, especially on older models where components can wear out over time. The Compufire Non-Vented Electric Rotor provides the consistent magnetic field needed for efficient power generation, making it an essential part of your bike's electrical health. This rotor is built to meet or exceed OEM specifications, offering dependable performance.
Dependable Charging Performance
- Engineered for 32A alternator charging systems
- Non-vented design for specific applications
- Direct replacement for OEM part number 29957-81b
- Built for longevity and consistent electrical output
Maintain Your Classic Harley
This Compufire electric rotor is a perfect fit for 1981-1999 Harley-Davidson Big Twin and Evolution models equipped with a 32A charging system. Whether you're refreshing an older build or troubleshooting a charging issue, this non-vented rotor ensures your V-twin continues to generate the power it needs. Always confirm your existing rotor type to ensure proper fitment for your specific model.
Specifications
- Brand: Compufire
- Manufacturer Part #: 55600
- UPC: 694342548117
- Dimensions: 8 in L × 2 in W × 8 in H
- Weight: 5 lbs
- Country of Origin: USA
Common questions
What Harley models does this rotor fit?
This Compufire electric rotor is designed for 1981-1999 Harley-Davidson Big Twin and Evolution models that use a 32A charging system and a non-vented rotor. It replaces OEM part 29957-81b.
Is this a vented or non-vented rotor?
This is a non-vented rotor. It is important to match the rotor type to your existing charging system and primary housing for proper function.
Will this work with my stock stator?
Yes, this rotor is designed to be compatible with stock 32A stators found on 1981-1999 Harley Big Twin and Evolution models. It is a direct replacement for the OEM rotor.
Ordering from Vtwinbikers
- Brand new, sourced through authorized US distribution — never used, never grey-market.
- Not sure it fits? Use Shop by Bike to filter by your year and model, or email us and we will confirm before you order.
- Harley-Davidson and Indian Motorcycle is all we do, so you are talking to people who ride what you ride.
| BRAND | Compufire |
| TYPE | Electrical |
| SKU | 139-10026 |
| WEIGHT | 5.0 lb |
