Vertex Complete Engine Rebuild Kit – Honda TRX450R (2004–2005) (WR101-031 / 0903-0971)

Description

The Vertex WR101-031 Engine Rebuild Kit (0903-0971) is a complete top and bottom end rebuild package designed specifically for the 2004–2005 Honda TRX450R (Sportrax). Built with OEM-grade components from Vertex, Hot Rods, and Wrench Rabbit, this all-inclusive kit delivers unmatched reliability, precise fitment, and restored performance from crank to cam.

Ideal for riders rebuilding stock or performance motors, this kit provides every internal component needed for a professional-quality overhaul.

What’s Included

✅ Hot Rods crankshaft (stock stroke)
✅ Vertex piston kit (piston, rings, wrist pin & clips)
✅ Complete gasket and O-ring kit (top + bottom end)
✅ Main bearings and seals
✅ Transmission bearing kit
✅ Counter balancer bearing kit
✅ Countershaft bushing & seal kit
✅ Water pump rebuild kit
✅ Cam chain
✅ Oil seal kit

Fitment

📦 Fits the following models:

• 2004 Honda TRX450R (Sportrax)

• 2005 Honda TRX450R (Sportrax)

(Compatible with all TRX450R 450cc 4-stroke kick-start engines)

Key Features

• Complete all-in-one engine rebuild solution

• Includes crankshaft, piston, gaskets, bearings, and seals

• OEM-level fit and durability from Vertex and Hot Rods

• Restores factory compression and reliability

• Ideal for racing, dune, or trail applications

Warranty Info

Manufactured by Vertex / Wrench Rabbit.
Warranty service available directly through Vertex or Wrench Rabbit.

Price & SKU

💲 Retail Price: $1,156.95
SKU: WR101-031 / 0903-0971
Estimated Shipping Weight: 17.8 lb
Handling: Ships next business day