Wiseco Std Piston Crankshaft Gasket Set for Yamaha YZ125 1998-2000 54.00mm Bore

Wiseco Std Piston/Crankshaft/Gasket Set for Yamaha YZ125

This Wiseco piston, crankshaft, and gasket set for Yamaha YZ125 rebuilds the top and bottom end of 1998 through 2000 machines with a 54.00mm standard bore piston, a fresh crankshaft assembly, and a complete gasket kit.

Overview

This Wiseco piston, crankshaft, and gasket set for Yamaha YZ125 supplies the core internals for a full engine rebuild in one package. The 54.00mm standard bore piston works with the matching crankshaft assembly and gasket set so the top and bottom end go back together with correct sealing. A practical choice for riders and mechanics servicing a 1998 to 2000 YZ125.

Built For Performance

• 54.00mm standard bore piston sized for the stock YZ125 cylinder
• Crankshaft assembly balanced for the 125cc two stroke engine
• Complete gasket set covering top and bottom end sealing
• Wiseco forged piston construction for consistent strength under load
• Ring, pin, and clip hardware included with the piston
• Kit format saves time sourcing separate internal components

Fits These Machines

• for Yamaha YZ125 1998
• for Yamaha YZ125 1999
• for Yamaha YZ125 2000

On-The-Job Use

• Top and bottom end rebuild after a seized or worn out engine
• Fresh piston and crank service on a 1998 to 2000 YZ125
• Routine internal refresh for trail and track riding
• Restoration work bringing an older YZ125 back to running order

Specs At A Glance

Good To Know

Q: Does this kit include everything for a full rebuild? A: It bundles a 54.00mm standard bore piston, a crankshaft assembly, and a gasket set so the main internal parts arrive together. Inspect bearings and seals during teardown and replace anything worn beyond spec.

Q: Will the 54.00mm piston fit my stock cylinder? A: The 54.00mm size matches a standard bore YZ125 cylinder that has not been overbored. Measure your cylinder and confirm the bore before ordering.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.