Wiseco Piston Kit with Gaskets, 54.00 mm for Honda CR125R (PK1257)

The Wiseco PK1257 Piston Kit with Gaskets is a complete top-end solution for compatible Honda CR125R engines. This kit includes the essential components needed for piston replacement, including a Wiseco piston, piston rings, wrist pin, circlips, and a top-end gasket kit. Designed to support a reliable rebuild, it helps simplify installation by combining the primary piston and sealing components in one package.
Wiseco pistons must be fitted only with Wiseco rings, and Wiseco ring types are not interchangeable. Verify the required ring type for your application before installation; for example, CD rings cannot be substituted for LC rings. Following the correct component specifications is essential for proper fit, sealing, and engine performance. Always compare the existing engine configuration with the manufacturer’s application information before beginning assembly.
This Wiseco piston kit is designed for Honda CR125R applications and uses a 54.00 mm piston size. Cylinder sleeves are not included and must be purchased separately if required for the rebuild. Professional installation and careful inspection of the cylinder, connecting rod, and related components are recommended to ensure proper assembly and long-term service. Use the Wiseco PK1257 part number when confirming compatibility with your engine and replacement requirements.

Features:

• Complete top-end kit: Includes a piston, rings, wrist pin, circlips, and top-end gasket kit for one complete engine

• Application: Designed for compatible Honda CR125R engines

• Piston size: 54.00 mm

• Ring compatibility: Wiseco pistons must be used with Wiseco rings, and ring types are not interchangeable

• Replacement requirement: Cylinder sleeves must be purchased separately

Ships from Parts Unlimited.