Wiseco or Athena are the only two manufacturers that I could find that still list a piston for the TRX350X.
Wiseco has 10.25:1 compression pistons in 81mm (std), .020 (81.5mm) and .040 (82.00mm) oversize for $150 for any one
Wiseco also has 12:1 high compression in the same sizes for $168 each
Athena has .040 oversize only for $189
These are piston kits with piston, rings, piston pin and piston pin cir-clips.
Wiseco (in the 10.25:1 compression) also offers a "kit" which in addition to the piston kit includes a gasket set for $190 - the gasket set is extra for the 12:1 compression piston at $39.50
1 - 2 of 2 Posts
This is an older thread, you may not receive a response, and could be reviving an old thread. Please consider creating a new thread.
A forum community dedicated to Honda TRX ATV owners and enthusiasts. Come join the discussion about reviews, modifications, classifieds, troubleshooting, maintenance, and more! Open to all models across the 500, 400, 300, and 200 series.