COMPUFIRE SKU: 139-10025

Compufire 40A 3-Phase Vented Charging System - Harley Twin Cam 1999-2002

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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.

Keep your Twin Cam charged and ready with the Compufire 40A 3-Phase Charging System. Engineered for 1999-2002 Harley-Davidson Twin Cam models, this system provides robust power output to support all your electrical demands. The vented rotor design helps dissipate heat, ensuring consistent performance even under heavy load.

Why riders pick this

  • High-output 40A 3-phase charging system
  • Vented rotor for enhanced heat dissipation and stator longevity
  • Reliable power delivery for all electrical accessories
  • Designed for 1999-2002 Harley Twin Cam models
  • Compatible with OEM primary drive components

When you're running aftermarket lights, an upgraded audio system, or a power commander, your charging system needs to keep up. The Compufire 40A 3-Phase Charging System is built to handle the demands of performance-oriented Twin Cam riders, delivering the amperage you need to keep everything running smoothly without compromise.

Consistent Power Delivery

  • Delivers ample amperage at idle and throughout the RPM range
  • Vented rotor design promotes airflow to keep the stator cooler
  • Maintains high output voltage for stable electrical performance
  • Narrow profile rotor and stator ensure compatibility with OEM primary setups

Engineered for Your Twin Cam

This Compufire charging system is a direct fit for 1999-2002 Harley-Davidson Twin Cam Softail, Dyna, and Touring models. It's designed to seamlessly integrate with your existing primary, providing a straightforward upgrade for improved electrical reliability. Ensure your older Twin Cam has the juice it needs for every ride.

Specifications

  • Brand: Compufire
  • Manufacturer Part #: 55576
  • UPC: 694342548100
  • Length: 9 in
  • Width: 8 in
  • Height: 8 in
  • Weight: 11 lbs

Common questions

Will this charging system fit my 2003 or newer Twin Cam?

No, this Compufire charging system is specifically designed for 1999-2002 Twin Cam models. Later model Twin Cams require a different charging system.

What is the benefit of a vented rotor?

The vented rotor design improves airflow around the stator windings, which helps dissipate heat more effectively. This keeps the stator cooler, leading to more consistent performance and extended component life, especially during sustained high-output use.

Does this require any modifications to my primary drive?

No, the narrow profile of this Compufire rotor and stator is engineered to work with your OEM primary components, allowing for a direct fit without modifications.

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.
BRANDCompufire
TYPEElectrical
SKU139-10025
WEIGHT11.0 lb
Please contact us to confirm fitment for your specific motorcycle, or check the product title for compatibility notes.
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