1. ATV
  2. Parts
  3. Engine

2003 Honda TRX250EX Engine

2003 Honda TRX250EX
Select Your Ride:Go

Narrow Your Results
Grid List
1-9 of 9
Top End Kit
You save $25.70 (12%)
Wiseco Top End Kit Wiseco-forged high-silicon aluminum alloy pistons are computer-machined to exacting tolerances Designed for greater strength with reduced weight and improved heat transfer Piston k
Pro Lite Piston Kit
You save $15.96 (11%)
Wiseco Pro Lite Piston Kit Available for both two stroke and four stroke bikes, the Wiseco Pro Lite Piston Kit is both a great OEM alternative and an easy way to boost the power. Choose stock bore siz
Moose Racing Top End Gasket Kit Performance sets designed for a piston replacement Top-end gasket sets include high-performance head, base, intake and exhaust gaskets Cost-effective way to raise c
Moose Racing Complete Gasket Set All gaskets needed for engine rebuild are included in each set with the exception of oil seals Unmatched reliability and performance from high-tech materials Design
Athena Complete Gasket Kit Manufactured in "State-of-the-Art" computer controlled facilities All gaskets made from the highest quality materials All gasket sets meet or exceed OEM specifications The
Cam Chain
You save $6.00 (12%)
Wiseco Cam Chain Made from premium materials to reduce friction and increase service life “M” style chain gives you maximum strength and durability Wiseco’s in-house
Pro X Racing Parts Cam Chain Manufactured in Japan by Borg Warner Designed to O.E.M. specifications Strong M-Type chain which has special heat treated pins plus advanced pin and link connections for

Latest Reviews

Ed (Methuen, MA)


Wisconsin top end kits kx65 kx 85

New Wisco top end kits for KX65 and KX85. The fit was great and had no problems at all- the bikes have been running good. My only recommendation is that you have to let the bikes warm up before you wind them out. You might get a little piston slap or nock.

Sean (Los Angeles, CA)


Replaced the top end on my 96 cr125r! Fit great perform well but the price is the problem. For 70-80 bucks they'd be perfect!

simon (berkshire, BRK)


lully job

Ordered my wiseco bottom end kit and everything fell together. Fired up second kick, now first time everytime! I will run it very gently, because that is absolute key in a good engine as some do thrash and wonder why the cranks snapped or flattened bearings!!

Alejandro (brooklyn, NY)


CLEAN finish

Just tops off any bike to become better. I love it!!

Back to Top