Compu-Fire 3-Phase Charging System

(1 review)

Item: 348916-389911

$524.68

Select Your Vehicle - Fitment Guaranteed

  • In Stock - Ships Next Business Day Fast & Free!

Compu-Fire 3-Phase Charging System


  • Phase charging systems provide 25 Amps at idle and 40 Amps continuously above 2800 RPM in Twin Cam engines
  • Unique narrow rotor and stator combination fits Softail and Dyna primary cases
  • Voltage regulator bolts on without any frame modifications
  • Precision balanced vented rotor keeps the stator cooler in closed primary systems to maintain maximum output under all high current draw conditions
  • Large flanged seal spacer provides maximum support for the rotor and the voltage regulator output is calibrated to 14.25 volts from idle on up
  • Best for use on on closed primary system
  • Includes vented rotor
  • Made in the USA
Specification Details
Amps 40 Amps
Country of Origin USA
Drive Type Closed Primary
Engine Type Twin Cam 88
Warranty 1 Year Manufacturer Warranty

Vehicle Fitment


Fitment is guaranteed or your money back plus free return shipping.
Don’t waste time installing a product that doesn't fit. We worked hard ensuring that this product is an exact fit on the vehicles listed below.

Harley Davidson
  • FLHR Road King 1999-2002
  • FLHRCI Road King Classic 1999-2002
  • FLHRI Road King 1999-2002
  • FLHT Electra Glide Standard 1999-2002
  • FLHTC Electra Glide Classic 1999-2002
  • FLHTCI Electra Glide Classic 1999-2002
  • FLHTCU Ultra Classic Electra Glide 1999-2002
  • FLHTCUI Ultra Classic Electra Glide 1999-2002
  • FLSTC Heritage Softail Classic 2000-2002
  • FLSTCI Heritage Softail Classic 2001-2002
  • FLSTF Softail Fat Boy 2000-2002
  • FLSTFI Softail Fat Boy 2001-2002
  • FLSTS Heritage Springer Softail 2000-2002
  • FLSTSI Heritage Springer Softail 2001-2002
  • FLTR Road Glide 1999-2002
  • FLTRI Road Glide 1999-2002
  • FXD Dyna Super Glide 1999-2002
  • FXDL Dyna Low Rider 1999-2002
  • FXDS-CONV Dyna Convertible 1999-2000
  • FXDWG Dyna Wide Glide 1999-2002
  • FXDX Dyna Super Glide Sport 1999-2002
  • FXDXT Dyna Super Glide T-Sport 2001-2002
  • FXST Softail Standard 2000-2002
  • FXSTB Softail Night Train 2000-2002
  • FXSTBI Softail Night Train 2001-2002
  • FXSTC Softail Custom 1999
  • FXSTD Softail Deuce 2000-2002
  • FXSTDI Softail Deuce 2001-2002
  • FXSTI Softail Standard 2001-2002
  • FXSTS Springer Softail 2000-2002
  • FXSTSI Springer Softail 2001-2002

Customer Reviews


Charging system for Harley Fat Boy

By Scooby on  Verified Purchaser

This is a great charging kit, Compu-Fire. Ventilated rotor, higher amperage charging, especially at lower RPMs. Would buy this kit again in a heartbeat, no dim lights at low RPM etc. When I get home from riding and plug in my tender, it immediately goes to float mode. Great high quality product!. Now the bad: Claimed to be an exact fit. Not so. It claims that the voltage regulator is a direct bolt on replacement with the bracket that they give you. Not even close. Had to fabricate my own plate to get it to fit. Also, the most pathetic instructions. For someone that has done many of these, probably not a problem but I have replaced stators 3 times in different bikes but the spacer situation was a bit confusing and the instructions are no help at all. Also, there are 3 different spacers, 1 for a Softail, 1 for a Dyna, and 1 for a Touring but they are not marked as to which is which. I was able to google a kit and see each spacer in a bag marked accordingly. My bags were not marked at all. You can try each one and then check your primary chain for straightness with a straight edge but it would make more sense for them to mark the spacers for people that would not know about that. One last issue on their part, on the voltage regulator, the hot wire and the ground wire are not marked and are the same color (but if you understand electronics you can trace the wires to where they go on the regulator and see one wire affixed to the regulator housing and know that is the ground wire). They crimped one ring terminal on the ground and nothing on the hot? Didn't understand the logic behind that. I would've assumed the one with the ring terminal was the hot one and the one without a ring terminal would be the ground that you would cut to length and crimp your own ring terminal on it and ground it to the frame or motor or whatever but I would've been wrong. I use to write curriculum for college courses, if they'd comp me, I'd write them a proper set of instructions, these are pretty poorly written. It's the only reason I gave it 4 out of 5 stars overall. Even the regulator not being a bolt on didn't bother me as much as the instructions. I'm pretty OCD, probably why it bugged me but the product is a quality kit, even the wiring and the connectors are high quality.


How many stars would you give this product? Write a review.

Questions & Answers


Have a question? Please ask our experts and customers who own this product.