Ensuring that your engine runs optimally, the 66/80cc Bullet Train Electric Start Engine Small Spline Shaft Oil Seal is a vital engine component. Compatible only with the Bullet Train Engine, this seal is affixed to the spline shaft to maintain compression and oil.

This 66/80cc Small Spline Shaft Oil Seal is designed for use with Electric Start 2-stroke bicycle engine kits, like the 66/80cc Flying Horse Bullet Train Bicycle Engine Kit

Note: This part is not compatible with standard 66/80cc 2-stroke engine kits, such as the Mega Motors engine, non-electric start Flying Horse engines, Grubee engines, RAW Motors engines, and Power King (PK80) engines