Piston, Engine

Piston
Piston diameter - standard size 94.9460-94.9186 mm (3.737-3.738 in)
Piston diameter - 0.254 mm (0.010 in) oversize 95.1738-95.1992 mm (3.747-3.748 in)
Piston diameter - 0.508 mm (0.020 in) oversize 95.4278-95.4532 mm (3.757-3.758 in)
Piston diameter - 0.762 mm (0.030 in) oversize 95.6818-95.7072 mm (3.767-3.768 in)
Piston-to-cylinder bore clearance 0.0441-0.0909 mm (0.0017-0.0036 in)
Piston ring end gap - keystone 0.29-0.55 mm (0.011-0.021 in)
Piston ring end gap - intermediate compression 1.40-1.66 mm (0.055-0.065 in)
Piston ring end gap - oil control 0.24-0.50 mm (0.009-0.019 in)
Piston ring groove width Upper limit - (measured over 2.08 mm [0.082 in] gauge pins) 94.469 mm (3.719 in)
Piston ring groove width Replacement limit - (measured over 2.08 mm [0.082 in] gauge pins) 94.290 mm (3.712 in)
Piston pin diameter 33.9975-34.0025 mm (1.3385-1.3387 in)
Piston pin length 65.073-65.327 mm (2.5619-2.5719 in)
Piston pin-to-piston fit 0.013-0.022 mm (0.0005-0.0009 in)