ProTek RC Samurai RM, CR21, S03 & R03 Carburetor Restrictor O-Ring (2)

Sleeve and Rod Assembly. This is a direct replacement part for the ProTek R/C Samurai CR21 .21 nitro engine. This includes not only the piston and sleeve but also the connecting rod, ...

replacement fuel inlet is intended for the CR21. Made from a durable composite, this allows for consistent fuel flow to the carburetor. Package includes one fuel inlet nipple. This product was added ...

head is made from CNC machined aluminum. The head has been drilled to increase the surface cooling area, as well as to remove weight for reduced center of gravity. Package includes one ...

replacement head button is intended for the CR21. The combustion chamber is polished smooth to promote engine performance. The head button is installed between the engine case and the cooling head. Package ...