Wiseco Piston Kit with Gaskets for Honda CR250R, 66.40 mm (PK1243)

Restore top-end performance with the Wiseco PK1243 Piston Kit with Gaskets, engineered for the Honda CR250R. This complete piston kit includes the essential components for one complete engine top-end rebuild, helping simplify installation and provide reliable fitment when servicing a compatible motorcycle engine. The kit includes pistons, piston rings, wrist pins, circlips, and a top-end gasket kit, giving you the key parts needed for a comprehensive replacement.
Wiseco pistons must be fitted only with compatible Wiseco rings. Wiseco ring types are not interchangeable, so verify the required ring type before installation; for example, CD rings cannot be substituted for LC rings. Following the correct ring selection and installation procedures helps support proper sealing, compression, and long-term engine performance. Always confirm application details and piston-to-cylinder clearance according to the manufacturer’s service specifications.
Feature: Complete top-end piston kit for one engine
Feature: Includes pistons, rings, wrist pins, circlips, and top-end gasket kit
Feature: Designed for compatible Honda CR250R applications
Feature: Wiseco part number PK1243
Feature: Piston size of 66.40 mm
Feature: Requires Wiseco rings matched to the piston and specified ring type
Feature: Cylinder sleeves must be purchased separately
The Wiseco PK1243 provides a practical solution for rebuilding or refreshing the top end of a Honda CR250R. Cylinder sleeves are not included and must be purchased separately when required. Use this kit with properly prepared engine components and follow all applicable service instructions for a dependable installation.

Features:

• Complete top-end piston kit for one engine

• Includes pistons, rings, wrist pins, circlips, and top-end gasket kit

• Designed for compatible Honda CR250R applications

• Wiseco part number PK1243

• Piston size of 66.40 mm

• Requires Wiseco rings matched to the piston and specified ring type

• Cylinder sleeves must be purchased separately

Ships from Parts Unlimited.