JE 297184S Piston BMW S50B30US 12.5 (Single Piece Set) ymm_32 Gentle on rotors for extended

Gentle on rotors for extended service life

Shell Transaxle Oil 75W-90

Air Filter Material Non-woven Synthetic

The headlamp duct allows for the most direct cold air feed possible and significantly helps to reduce heat soak keeping track times consistent

Rotation: Reverse Rotation

JE 297184S Piston BMW S50B30US 12.5 (Single Piece Set) ymm_32 Gentle on rotors for extendedDESCRIPTION: Piston Set, 2618, Inv Dome Dish, 3. 4055 Bore, 1. 291 CD, 0. 866, Pin Dia, Set of 1 Bore (in) 3. 406 Bore (mm) 86. 5 Top Compression Ring Thickness 0. 0400 Second Compression Ring Thickness 0. 0480 Oil Ring Thickness 0. 111 Forging Type FSR Volume (cc) 5. 00 Series JE Pistons Piston Head Type Inv Dome Dish Pin Diameter (IN) 0. 866 Compression Height 1. 291 Make BMW Wrist Pin Style floating or press fit Floating Wall Type CHAMFERED Wall