Piston Ring, Engine

Piston ring groove width-upper compression ring 1.484 mm (0.05845 inch)
Piston ring groove width-lower compression ring 1.734 mm (0.0682675 inch)
Piston ring groove width-oil control ring 2.905 mm (1.1143698 inch)
Piston ring width-upper and lower compression ring 0.30 - 0.50 mm (0.011811 - 0.019685 inch)
Piston ring width-oil control ring 0.40 - 1.40 mm (0.015748 - 0.055118 inch)