Vertex WR101-146 Complete Engine Rebuild - Kit 76.95mm Piston 4-Cycle

The Vertex WR101-146 Complete Engine Rebuild Kit is a comprehensive, all-in-one solution for a professional-grade engine rebuild. Bundling top-quality components from Vertex and Hot Rods into a single convenient package, this kit eliminates the hassle of sourcing individual parts and ensures every component is engineered to work together seamlessly. Designed for the Yamaha WR 250F (2005–2009), this 4-cycle kit features a 76.95mm piston diameter and is built to meet or exceed OEM specifications.

Kit Includes:

• Vertex Piston Kit — Standard compression piston, rings, pin, and clips; pistons manufactured in Italy to OEM fit and performance standards
• Hot Rods Heavy-Duty Crankshaft — Stock stroke; factory assembled and trued to OEM specifications for durability that meets or surpasses the original
• Hot Rods Main Bearing & Seal Kit — Built to the highest quality standards, meeting or exceeding OEM requirements
• Hot Rods Transmission Bearing Kit — Includes transmission bearings, output shaft collar, and sprocket lock washer
• Hot Rods Counter Balancer Bearing Kit — Engineered to restore smooth engine operation
• Hot Rods Water Pump Bearing & Seal Kit — Ensures proper cooling system function during and after the rebuild
• Vertex Complete Gasket Kit — Includes seals and O-ring kit covering both top and bottom end; complete sets with no guesswork

This rebuild kit is the smart choice for mechanics and enthusiasts who want everything needed for a thorough engine overhaul in one box. By combining Vertex and Hot Rods components — two trusted names in powersports — this kit delivers confidence at every stage of the rebuild process. Note: Exact kit contents may vary by fitment based on application requirements.