Yamaha YFZ450R/X (2009–2013) Engine Rebuild Kit – Vertex/Wrench Rabbit

Yamaha YFZ450R/X (2009–2013) Complete Engine Rebuild Kit – Vertex / Wrench Rabbit Description Dominate the dunes and the track with the Vertex / Wrench Rabbit WR101-147 Complete Engine Rebuild Kit — the ultimate 4-stroke ATV overhaul for 2009–2013 Yamaha YFZ450R & YFZ450X. This all-in-one race weapon packs a Hot Rods forged crankshaft, Vertex high-performance piston, cam chain, counter balancer bearings, full gasket & seal set, and every bearing needed to unleash OEM precision, redline power, and championship durability. Rebuild it. Pin it. Win it.

What’s Included

• Hot Rods Heavy-Duty Crankshaft
• Vertex Piston Kit (piston, rings, pin, clips)
• Complete Engine Gasket Kit with Oil Seals
• Main Bearing and Seal Kit
• Water Pump Rebuild Kit
• Transmission Bearing Kit
• Countershaft Bushing/Seal Kit
• Timing Cam Chain
• Counter Balancer Bearing Kit

Key Features

• Total 4-stroke ATV rebuild — top to bottom in one box
• OEM-direct fit for 2009–2013 YFZ450R & YFZ450X
• Hot Rods + Vertex synergy — forged for high-RPM, hard-hitting power
• Cam chain & counter balancer — smooth, vibration-free performance
• Race & recreation proven — trusted by pro riders and weekend warriors

Fitment Fits the following models and years:

• 2009–2013 Yamaha YFZ450R
• 2010–2011 Yamaha YFZ450X

Warranty Info Backed by Wrench Rabbit and Hot Rods limited warranty. Professional installation is recommended to ensure correct clearances and assembly. WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Price & SKU Retail Price: $1,156.95 SKU: 0903-1054 / WR101-147 Estimated Shipping Weight: 16.9 lbs Handling Time: Ships next business day