Ensure precise cylinder-to-crankcase alignment on your GY6 engine with this OEM 10x16 cylinder base dowel pin pair. These hollow steel locating pins keep the cylinder perfectly indexed to the crankcase during assembly, preventing gasket blowout and maintaining proper compression. Sold as a pair (2 pins).
Fits 157QMJ-based 125cc and 150cc GY6 4-stroke engines with the following engine codes:
Don't see your engine code? If it includes "QM" or "FM", this pin is likely compatible with your engine.
California Prop 65 Warning: www.p65warnings.ca.gov
