Wiseco Std Piston Crankshaft Gasket Set for KTM SX125 2002-2006 54.00mm Bore

Wiseco Std Piston/Crankshaft/Gasket Set for KTM SX125

This Wiseco Std Piston/Crankshaft/Gasket Set for KTM SX125 supplies a 54.00mm bore piston, a crankshaft, and a gasket set for a complete engine refresh on the 2002-2006 SX125.

Overview

This Wiseco Std Piston/Crankshaft/Gasket Set for KTM SX125 covers the main wear parts in a single box, including a 54.00mm bore piston, a crankshaft, and the gaskets needed to seal the engine. Riders rebuilding a 125 two-stroke top and bottom end get matched components instead of sourcing each part separately. The Wiseco Std Piston/Crankshaft/Gasket Set for KTM SX125 is aimed at the 2002-2006 SX125 owner planning a full refresh.

Built For Performance

• Standard 54.00mm bore piston matched to the original cylinder size
• Forged piston construction built to handle high rpm two-stroke use
• Crankshaft included so the bottom end gets attention at the same time
• Complete gasket set supplied for clean sealing during reassembly
• Kit keeps the major wear parts together for a single rebuild

Fits These Machines

• for KTM SX125 2002
• for KTM SX125 2003
• for KTM SX125 2004
• for KTM SX125 2005
• for KTM SX125 2006

On-The-Job Use

• Top end service when compression falls off
• Bottom end rebuild after crank wear or bearing noise
• Off-season engine refresh on a motocross bike
• Full rebuild after a piston seizure or mechanical failure

Specs At A Glance

Good To Know

Q: Does this kit cover both the top and bottom end? A: It includes a standard bore piston, a crankshaft, and a gasket set so the main wear parts come together. Check bearings and seals during teardown before reassembly.

Q: Is a 54.00mm bore piston the stock size? A: Yes, 54.00mm is the standard bore for the listed SX125 models, so no boring is needed. Measure the cylinder first to confirm it is still within spec.

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