PISTON KIT 1983 YZ125 57.00, WISECO 503M05700 YAMAHA MX

Part No. 56-W503+100_WI (phoenixmotos.com)
1983 Yamaha YZ125,
Wiseco Piston Kit - Standard Bore 57.00mm 503M05700
Forged from high-silicon aluminum alloy for maximum strength and dependability Durability, longevity and increased horsepower

Innovative forging design and piston skirt provide maximum horsepower and torque All Wiseco High-Performance Motorcycle Pistons are priced with rings and circlips Bore Size: 57.00mm