ProTek RC CR21 Cooling Head. This replacement cooling ...
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 ...
Head Button and O-Ring Overview: ProTek RC Samurai ...
RM.1 Nitro Engine Inner Head Button and O-Ring. This replacement inner head button and O-ring are intended for the ProTek RC Samurai RM.1. nitro engine. Package includes one cooling head. This product ...