WISECO PK1667 42mm Piston Kit for Suzuki JR50 and Kawasaki KDX/KFX50

Contains all the necessary components for overboring or rebuilding your top end

Feature forged pistons, rings, wrist pins, circlips and top end gasket set

Upgrade the performance and reliability of compatible youth off-road motorcycles with the WISECO PK1667 42mm Piston Kit. Designed for Suzuki JR50 and Kawasaki KDX/KFX50 applications, this piston kit provides a dependable replacement solution for worn or damaged engine components. Its application-specific design supports proper fitment and consistent engine operation when installed according to the motorcycle manufacturer’s service procedures.
The WISECO PK1667 features an 826M piston construction intended for the demands of small-displacement two-stroke engines. Replacing a worn piston can help restore compression, throttle response, and overall engine performance while supporting continued service life. This kit is suited for repair, maintenance, or engine rebuilding projects where a quality replacement piston is required.
Before ordering, verify the motorcycle model, year, engine configuration, and required piston specification to ensure compatibility. Professional installation is recommended, including inspection of the cylinder, piston clearance, rings, wrist pin, and related components. Follow all applicable break-in and maintenance instructions after installation for dependable operation.

Features:

• Brand: WISECO

• Part Number: PK1667

• Piston Size: 42mm

• Piston Type: 826M

• Application: Suzuki JR50

• Application: Kawasaki KDX50 and KFX50

• Use: Replacement piston for compatible small-displacement two-stroke engines