WR426F subframe replace

5 replies to this topic
  • shahar

Posted March 25, 2003 - 01:31 AM


I own a WR426F yamaha model 2002.
Can I replace may metal subframe with a WR450F 2003 aluminum subframe? and if not where can I buy an aftermarket aluminum subframe?
Thanks Shahar

  • shahar

Posted March 25, 2003 - 07:56 AM


Does anyone know if the YZ426F 2002 subframe fits?

  • Sean_McCutcheon

Posted March 25, 2003 - 08:07 AM


Yes it should. The only thing that will be different is the yz subframe will not have a bracket for the radiator overflow bottle. I put a yz subframe on my 2000 model. I didn't use the overflow bottle all last year and I didn't have any overheating problems except for when I sat and idled on the very hot days.

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  • x2smoker

Posted March 25, 2003 - 08:07 AM


It fits, you'll beed to fabricate a hanger for the coolant resevoir if you plan to keep it.

  • cowboyona426

Posted March 25, 2003 - 08:46 AM


If you put a 450 subframe on it, you may have to change a lot of other parts as well- such as the airbox, rear fender, side panels, seat, tank, and rad shrouds. A lot changed between the 02 and 03 geometry. Your best bet is to find a YZ subframe and make a bracket for the overflow bottle, if you even want to use it.

  • SoCalWR426

Posted March 25, 2003 - 01:57 PM


If it would fit I would be highly surprised! Only an 02 YZ subframe will fit.(been there done that) earlier sub-frames take too much modification to fit. Rear brake res. exhaust mt and coolant tank, just to name a few.


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