Vertex Complete Engine Rebuild Kit – Kawasaki KX250F (2005) (WR101-039 / 0903-0976)

Description

The Vertex WR101-039 Engine Rebuild Kit (0903-0976) delivers a complete OEM-spec engine restoration for your 2005 Kawasaki KX250F. Designed for serious motocross and off-road riders, this all-in-one rebuild kit includes every critical internal engine component you need for a reliable, professional-quality rebuild.

Each part is precision-engineered by Vertex and Hot Rods to match factory tolerances — ensuring smooth operation, strong compression, and dependable power delivery from start to finish.

What’s Included

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

Fitment

📦 Fits:

• 2005 Kawasaki KX250F

(Does not fit later EFI models or KX250 two-strokes.)

Key Features

• Full top and bottom end rebuild kit in one package

• OEM-quality durability with race-proven reliability

• Improves compression, power, and long-term performance

• Perfect for stock or race-prepped KX250F motors

• Backed by Vertex and Hot Rods engineering standards

Warranty Info

Manufactured by Vertex / Wrench Rabbit.
Warranty and tech support provided directly by Vertex or Wrench Rabbit.

Price & SKU

💲 Retail Price: $1,011.95
SKU: WR101-039 / 0903-0976
Estimated Shipping Weight: 12 lb
Handling: Ships next business day