Engine

Includes crankshaft and connecting rod assembly and top end bearing Standard replacement crankshaft assembly unless noted. CRANKSHAFT YZ125/125X

Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication Lightweight piston with a tight piston wall clearance for a quieter running engine Skirt coated for reduced friction and improved break in...

Lightweight piston with tight piston wall clearance Kit includes piston, rings, wrist pin and pin locks. PISTON KT STD A POLARIS

Lightweight piston with tight piston wall clearance Kit includes piston, rings, wrist pin and pin locks. PISTON KT STD A ARTICCAT

Lightweight piston with tight piston wall clearance Kit includes piston, rings, wrist pin and pin locks. PISTON KT STD A POLARIS

Lightweight piston with tight piston wall clearance Kit includes piston, rings, wrist pin and pin locks. PISTON KT STD A ARTICCAT

Lightweight piston with tight piston wall clearance Kit includes piston, rings, wrist pin and pin locks. PISTON KT STD A POLARIS

Lightweight piston with tight piston wall clearance Kit includes piston, rings, wrist pin and pin locks. PISTON KT STD A ARTICCAT

Includes crankshaft and connecting rod assembly and top end bearing Standard replacement crankshaft assembly unless noted. CRANKSHAFT KTM/HUSQ/GG 85

Includes crankshaft and connecting rod assembly and top end bearing Standard replacement crankshaft assembly unless noted. CRANKSHAFT KTM/HUSQ/GG 65

Enhanced piston pin oiling slots, radial boss machining, and annular grooves for improved wrist pin lubrication Lightweight piston with a tight piston wall clearance for a quieter running engine Skirt coated for reduced friction and improved break in...

Lightweight piston with tight piston wall clearance Kit includes piston, rings, wrist pin and pin locks. PISTON KT STD B POLARIS