This is a Traxxas TRX 2.5 and 2.5R Piston and Sleeve kit. If you have several gallons of fuel through your engine, it may be time for a new piston and sleeve. It is a direct replacement. Included are one piston, one sleeve, and two wrist pin clips. The sleeve has a notch to insure correct positioning. Regain the power lost because of your worn out piston and sleeve. The TRX 2.5 or 2.5R engines are used in the T-Maxx, S-Maxx, Revo, Jato, Rustler, etc.
Wrist Pin Clips
Requires: Installation into engine
Sleeve length: 27.6mm (1.08")
Piston diameter: 14.7mm (0.58")