Designed to stop the piston so you can find top dead-center. Kit comes with three sizes to thread into 10, 12 and 14 mm spark plug holes.
• Black aluminum finish
Includes:
10 mm-1.00 x 5-7/8 in. L, Piston stop
10 mm x 6 mm Spacer
12 mm-1.25 x 5-7/8 in. L, Piston stop
12 mm x 6 mm Spacer
14 mm-1.50 x 5-7/8 in. L, Piston stop
14 mm x 6 mm Spacer
