RCMK +1mm (29mm) Watercooled Crankshaft
RCMK +1mm (29mm) watercooled crankshaft
This is the RCMK +1mm (29mm) watercooled crankshaft. This stroker crank will give your engine more torque and power. Fits RCMK Marine motors, Zenoah G231PUM/G260PUM marine motors, and CY/"Sikk" Marine motors.
Note: For use in Zenoah/CY/Sikk engines, the RCMK pin bearing / washers must be used (included with crank)