TRX300 Generations

There is 2 basic "generations" of the TRX300 Fourtrax. Although some will argue that there is actually three. On this page I will briefly explain the 2 generations and there major differences.

1st Gen 1988-1992

  • 2wd models used strut style front end
  • Different Cam/CDI produced 18.5hp (1988 only) 16.5hp '89 +
  • Monotube upper frame rail, air intake goes through this, gas tank straddles it.
  • Rear hubs and axle have shorter splines, prone to wear.
  • Exhaust header has large droop in it near front of cylinder
  • 88-91 wheels slightly different design
  • Smooth fender flares held on by screws 1988-1991, push pins in 1992.

2ND Gen 1993-1997

  • Double tube top frame rail.
  • Longer Splines on rear hubs/axle
  • Smooth Fender Flares 1993-1995
  • Ribbed fender flares 1996-2000
  • 2wd models have double A-arm front suspension similar to 4wd models
  • Shorter front driveshaft than 1st gen models

Gen 2.5? 3? '98-2000

  • Different wiring harness and CDI (Single plug vs. 2 plug) also "alarm" box is part of CDI not separate box.
  • New colour, "Patriot Red"
  • No other significant changes from 2nd gen 1993-1997 models.

NOTES:

  • Model Generation Overlap - Some 1993 models may be Gen1 machines there was some overlap in 1993 between Gen1 and Gen2 models.
  • Model Generation Interchange - Some parts WILL interchange and some parts WILL NOT interchange. I cannot list everything that is up to you to find out, which is easy enough on most online parts websites.