OS Speed 21XZ-B Piston & Sleeve Assembly
Item No: 22413000 - RC Engine Part
This is the replacement Cylinder and Piston assembly for use with the OS .21 XZ-B engine.
NOTE: You will need to detach the old connecting rod and re-attach it to the new piston during replacement. We recommend that when you replace the piston/sleeve on any engine, you also change the connecting rod and wrist pin clips.