Compu-Fire 3-Phase Charging System

(1 review)

Item: 348916

$478.61 – $531.37

Select Your Vehicle - Fitment Guaranteed

Compu-Fire 3-Phase Charging System


  • Phase charging systems provide 25 Amps at idle and 40 Amps continuously above 2800 RPM in Evolution and 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
  • Available for use on open or closed primary systems
  • Made in the USA
Specification Details
Amps 40 Amps
Country of Origin USA
Drive Type Varies (make selection above)
Engine Type Varies (make selection above)
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
  • CVO FXR2 1999
  • CVO FXR3 1999
  • CVO FXR4 2000
  • FLH Electra Glide 1984-1985
  • FLHR Electra Glide Road King 1994
  • FLHR Road King 1995-2005
  • FLHRCI Road King Classic 1998-2005
  • FLHRI Road King 1996-2005
  • FLHRS Road King Custom 2004-2005
  • FLHRSI Road King Custom 2004-2005
  • FLHS Electra Glide Sport 1984-1993
  • FLHT Electra Glide 1984, 1986-1988
  • FLHT Electra Glide Standard 1995-2005
  • FLHTC Electra Glide Classic 1984-2005
  • FLHTC Liberty Electra Glide Classic Liberty 1986
  • FLHTCI Electra Glide Classic 1996-2005
  • FLHTCU Ultra Classic Electra Glide 1989-2006
  • FLHTCUI Ultra Classic Electra Glide 1995-2005
  • FLHTI Electra Glide Standard 2003-2005
  • FLHX Electra Glide Special 1984-1985
  • FLHX Street Glide 2006
  • FLST Heritage Softail 1986-1990, 2006
  • FLSTC Heritage Softail Classic 1987-2006
  • FLSTCI Heritage Softail Classic 2001-2006
  • FLSTF Softail Fat Boy 1990-2006
  • FLSTFI Softail Fat Boy 2001-2006
  • FLSTI Heritage Softail 2006
  • FLSTN Heritage Softail Nostalgia 1993
  • FLSTN Heritage Softail Special 1994-1996
  • FLSTN Softail Deluxe 2005-2006
  • FLSTNI Softail Deluxe 2005-2006
  • FLSTS Heritage Springer Softail 1997-2003
  • FLSTSC Softail Springer Classic 2005-2006
  • FLSTSCI Softail Springer Classic 2005-2006
  • FLSTSI Heritage Springer Softail 2001-2003
  • FLTC Tour Glide Classic 1984-1991
  • FLTCU Ultra Classic Tour Glide 1989-1995
  • FLTCUI Ultra Classic Tour Glide 1996
  • FLTR Road Glide 1998-2004
  • FLTRI Road Glide 1998-2005
  • FXD Dyna Super Glide 1995-2005
  • FXDB Dyna Daytona 1992
  • FXDB Dyna Sturgis 1991
  • FXDC Dyna Glide Custom 1992
  • FXDC Dyna Super Glide Custom 2005
  • FXDCI Dyna Super Glide Custom 2005
  • FXDI Dyna Super Glide 2004-2005
  • FXDL Dyna Low Rider 1993-2005
  • FXDLI Dyna Low Rider 2004-2005
  • FXDS-CONV Dyna Convertible 1994-2000
  • FXDWG Dyna Wide Glide 1993-2005
  • FXDWGI Dyna Wide Glide 2004-2005
  • FXDX Dyna Super Glide Sport 1999-2005
  • FXDXI Dyna Super Glide Sport 2004-2005
  • FXDXT Dyna Super Glide T-Sport 2001-2003
  • FXE Super Glide 1984
  • FXEF Super Glide Fat Bob 1985
  • FXLR Low Rider Custom 1987-1994
  • FXR Super Glide 1986-1994
  • FXRC Low Glide 1985
  • FXRC Low Rider Chrome 1986-1987
  • FXRD Grand Touring Edition 1986
  • FXRDG Disc Glide 1984
  • FXRS Low Glide 1984-1992
  • FXRS-CONV Low Rider Convertible 1989-1993
  • FXRS-SP Low Rider Sport Edition 1986-1993
  • FXRT Sport Glide 1984-1992
  • FXSB Low Rider 1984-1985
  • FXST Softail 1984-1990
  • FXST Softail Standard 1999-2006
  • FXSTB Softail Night Train 1999-2006
  • FXSTBI Softail Night Train 2001-2006
  • FXSTC Softail Custom 1986-1999
  • FXSTD Softail Deuce 2000-2006
  • FXSTDI Softail Deuce 2001-2006
  • FXSTI Softail Standard 2001-2006
  • FXSTS Springer Softail 1988-2006
  • FXSTSB Softail Bad Boy 1995-1997
  • FXSTSI Springer Softail 2001-2006
  • FXWG Wide Glide 1984-1986

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.


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