Piston/sleeve (matched set), wrist pin clips(2) (TRX 3.3) Use Traxxas stock and hop-up replacement parts to get the most out of your Traxxas RTR vehicles. This product is made from high quality materials and designed for long-lasting performance. This is replacement hardware for use on Traxxas vehicles; consult your user's manual for exact parts listings.
This is a replacement piston and sleeve for the TRX 3.3 engine. Use this to bebuild an old and tired TRX 3.3 engine.