Vertex Wrench Rabbit Complete Engine Rebuild Kit – Yamaha YZ450F (2003–2005)

Description

Bring your first-generation YZ450F engine back to factory-fresh performance with the Vertex / Wrench Rabbit Complete Engine Rebuild Kit (WR101-086). This comprehensive 4-stroke rebuild package includes every component needed to overhaul both the top and bottom end—perfect for restoring power, reliability, and smooth operation after high-hour or race use.

Each kit combines Hot Rods, Vertex, and Cometic components, all engineered to exceed OEM durability and precision. Designed as a true one-box solution, it saves time and eliminates the guesswork of sourcing individual parts.

What’s Included

✅ Hot Rods Crankshaft Assembly – fully assembled, trued, and balanced
✅ Vertex Piston Kit – piston, rings, wrist pin, and clips
✅ Complete Engine Gasket Kit – top & bottom end coverage
✅ Oil Seal Kit – premium heat-resistant seals
✅ Main Bearing & Seal Kit – OEM-grade crank bearings
✅ Water Pump Rebuild Kit – includes bearings, seals & impeller gasket
✅ Transmission Bearing Kit – all internal gearbox bearings included
✅ Countershaft Bushing & Seal Kit
✅ Cam Chain – high-strength timing chain
✅ Counter-Balancer Bearing Kit – smooths vibration and enhances longevity

Every piece is precision-matched for a seamless, professional-quality rebuild.

Fitment

📦 Fits the following models:

• Yamaha YZ450F (2003–2005)

Key Features

• Complete top & bottom end rebuild kit

• Premium components from Vertex and Hot Rods

• Restores compression, oil pressure, and crank balance

• Perfect for full engine refresh or preventive maintenance

• Direct bolt-in design—no machining required

Displacement: 450 cc
Engine Type: 4-Stroke
Weight: 15.3 lb

Warranty Info

🛡️ Covered by Vertex / Wrench Rabbit Limited Manufacturer Warranty
All parts meet or exceed OEM standards. Professional installation recommended.

Price & SKU

💲 Retail Price: $1,095.95
SKU: 0903-1021 / WR101-086
Estimated Shipping Weight: 15.3 lb
Handling: Ships next business day