Vertex Engine Rebuild Kit for KTM 85 SX 2003-2012 (WR101-056)

The Vertex WR101-056 Engine Rebuild Kit is a convenient, comprehensive solution for rebuilding your KTM 85 SX from 2003 through 2012. Designed for professional-quality engine restoration, this kit combines carefully matched internal engine components from Vertex and Hot Rods, helping simplify parts selection and reduce the time required to source individual rebuild components. The kit includes nearly everything needed for a complete top- and bottom-end rebuild, making it a practical choice for motorcycle technicians, performance enthusiasts, and dedicated off-road riders.
The Vertex piston kit includes a standard-compression piston, piston rings, wrist pin, and retaining clips. A Hot Rods heavy-duty crankshaft with stock stroke is also included, along with a wrist pin bearing for dependable piston and crankshaft assembly. Hot Rods main bearing and seal components support proper crankcase service, while the transmission bearing kit includes transmission bearings, an output shaft collar, and a sprocket lock washer for refreshed drivetrain operation.
Additional components include the Hot Rods counter balancer bearing kit and water pump bearing and seal kit. The Vertex complete gasket kit includes the seals and O-ring kit required for top- and bottom-end assembly, helping provide a thorough sealing solution during the rebuild. By combining major engine, transmission, balancing, cooling, and sealing components in one package, the Vertex WR101-056 helps streamline installation and supports a consistent rebuild process for compatible KTM 85 SX applications.
Before installation, verify motorcycle year, model, engine configuration, and service requirements to ensure compatibility. Professional installation is recommended, with all components inspected and assembled according to the manufacturer’s service procedures and torque specifications.

Features:

• Application: Designed for KTM 85 SX models from 2003 through 2012

• Piston Kit: Includes a standard-compression Vertex piston, rings, wrist pin, and retaining clips

• Crankshaft: Hot Rods heavy-duty crankshaft with stock stroke and wrist pin bearing

• Main Bearing and Seal Kit: Supports crankcase rebuilding and proper engine sealing

• Transmission Bearing Kit: Includes transmission bearings, output shaft collar, and sprocket lock washer

• Counter Balancer Kit: Includes Hot Rods counter balancer bearing components

• Water Pump Kit: Includes water pump bearing and seal components

• Gasket Kit: Vertex complete gasket kit with seals and O-rings for top- and bottom-end service

• Rebuild Coverage: Combines major engine, transmission, cooling, balancing, and sealing components in one kit

Ships from Parts Unlimited.