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.
Power your 1999-2002 Harley Twin Cam with the reliable Compufire 40A 3-Phase Charging System. Engineered to provide consistent, high-output charging, this system ensures your electrical demands are met, even with added accessories.
The Compufire 40A 3-Phase Charging System is a robust upgrade for 1999-2002 Harley-Davidson Twin Cam engines. Made in the USA, this system is designed to deliver a steady 25 amps at idle, increasing to a powerful 40 amps above 2,800 rpm. Its vented rotor design is key to its performance, actively dissipating heat to keep the stator running cooler and maintaining consistent high output during long rides.
This Compufire charging system is an ideal solution for riders looking to improve the electrical reliability of their 1999-2002 Harley-Davidson Softail, Dyna, or FLT models. The narrow profile of the rotor and stator ensures a direct fit with OEM primary cases, simplifying installation and avoiding fitment issues. With its strong output and efficient heat management, this system provides the dependable power needed for both daily riding and performance demands, keeping your battery optimally charged.
What Harley models and years does this charging system fit?
This Compufire 40A 3-phase charging system is designed for 1999-2002 Harley-Davidson Twin Cam models, including Softail, Dyna, and FLT chassis, specifically with OEM primary cases.
What is the amperage output of this system?
This system produces 25 amps at idle and ramps up to 40 amps above 2,800 rpm, providing strong charging for highway riding and accessories.
Does this system require any modifications to my primary case?
No, the narrow rotor and stator profile of this Compufire system are specifically designed for direct compatibility with OEM primary cases, ensuring a straightforward replacement.
| BRAND | Compufire |
| TYPE | Electrical |
| SKU | 139-10023 |
| WEIGHT | 11.0 lb |
Everything worked great once I figured out what out of 3 spacers u needed. Of course it was the third try for me. I called for help and compu-fire didn’t even now what I was talking about.
Great product comes with everything you need for installation
Excellent!!
5 Stars
Install went well. Bike now charges at idle. Great product. I recommend it.
Has worked good so far. Maybe should have been a 45 amp instead of a 40 as my bike is a Electra Glide Classic although it is carbureted.
