Wiseco Engine Rebuild Kit for Yamaha YZ250, 66.40 mm (PWR127-100)

Restore reliable engine performance with the Wiseco PWR127-100 Engine Rebuild Kit for Yamaha YZ250 models. Designed as a comprehensive solution for a complete top- and bottom-end rebuild, this kit brings together essential internal engine components to help simplify the rebuilding process and support dependable service life. It is engineered for riders, technicians, and powersports professionals who need a coordinated set of replacement parts from a trusted performance brand.
The kit includes a crankshaft and rod assembly designed and inspected to promote durability under demanding operating conditions. Matching main bearings, seals, and gaskets are included to help provide the components needed for proper engine assembly and sealing. With the major rebuild items packaged together, the Wiseco PWR127-100 helps reduce the need to source individual parts separately while supporting a thorough and efficient engine refresh.
A 66.40 mm fitment makes this kit a targeted replacement solution for the Yamaha YZ250 application. An hour meter and mounting bracket are also included, helping make it easier to monitor service intervals and track engine operating time after the rebuild. Use the Wiseco part number PWR127-100 to verify compatibility with your specific motorcycle before ordering. Built for practical installation and long-term performance, this engine rebuild kit is a dependable choice for maintaining or restoring a Yamaha YZ250 engine.

Features:

• Complete rebuild solution: Includes top- and bottom-end components for a comprehensive Yamaha YZ250 engine rebuild

• Durable crankshaft assembly: Includes a crankshaft and rod assembly designed and inspected for dependable service

• Essential sealing components: Includes main bearings, seals, and gaskets for engine assembly and sealing requirements

• Engine monitoring equipment: Includes an hour meter and mounting bracket for tracking operating time and service intervals

• Application-specific fitment: Designed for Yamaha YZ250 models with a 66.40 mm configuration

• Trusted manufacturer: Wiseco part number PWR127-100

Ships from Parts Unlimited.