Wiseco WPC134 Bottom End Kit – Honda CRF250R 2004-2009

Bulletproof crank. Race-ready in one box.
The Wiseco WPC159 is a complete bottom-end rebuild kit for 2004–2009 Honda CRF250R. Fully assembled, double-forged crank with premium main bearings, full gasket set, and every seal — no parts chasing. We price-match reputable online stores—contact us to ensure you get the best deal!

What’s Included

• Wiseco WPC159 Crankshaft Assembly (factory trued)

• Premium caged main bearings

• Complete bottom-end gasket kit (head, base, crank seals, o-rings)

• All transmission & water pump seals

• Ready-to-install — no missing pieces

Key Features

• Double-forged Wiseco rod — unmatched strength & fatigue resistance

• Shot-peened & corrosion-treated — eliminates stress, extends life

• Precision oiling slots — superior rod lubrication + piston cooling

• Optimized bearing clearance — built for high-RPM, high-compression racing

• Warning: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

Fitment

• Honda CRF250R

  • 2004

  • 2005

  • 2006

  • 2007

  • 2008

  • 2009

• Note: Confirm crank part number (ends in -000 or -001) before install.

$524.95

SKU: WPC159
Weight: 9.05 lbs
Package: 18.9" × 11.2" × 7.7"
Same-day shipping if ordered by 3 PM EST

Installation Tips

1. Torque mains: 18–22 ft-lbs (Honda spec)

2. Use assembly lube on all bearings & seals

3. Check runout (<0.002") after install

4. Break in gently — 5–7 easy heat cycles