Wiseco Crankshaft Kit #WPC141 Yamaha WR250F 2003-2009

Description

NOTE: Image is for reference only, actual product may vary slightly depending on your specific application.
Wiseco Crankshaft Kit #WPC141 Yamaha WR250F 2003-2009
Product Details
Crankshaft kits include crankshaft, top end bearing, premium main bearings and a complete bottom end gasket set that includes all seals and gaskets needed to do the job
Only one part number to stock and order
Crankshafts are factory assembled and precision trued to OE specifications
Double-forged Wiseco connecting rods maintain superior dimensional consistency through improved grain flow
Shot-peening eliminates residual stresses and smoothly blends the rod forging surfaces
Corrosion-resistant surface treatment
Top and bottom end rod bores case hardened to 58-62 RC to optimize bearing running surface
Crank pin bearing radial running clearance is optimized to ensure maximum performance
Precision honing ensures ultra round bearing surface
Precision-engineered oiling slots maximize rod strength and bearing life
Double-drilled small ends provide the piston pin with extra lubrication and cooling, reducing distortion of top end due to thermal transfer from the piston
Silver-coated bronze phosphor thrust washers, with dimpled design to increase oil retention and reduce friction between rod and washer interface
Crank pin bearings are manufactured from the highest quality hot rolled steel; case-hardened to 58-62 RC
Caged needle roller bearings provide the highest possible rpm
Precision-machined crank webs
Wiseco complete gasket kits are made from premium materials for maximum sealing and reliability; all bearings are OE-quality for reliability and performance
Fit Guide
Model
Crankshaft
Country of Origin
USA
Stroke
53.60mm
Product Fitment
This item fits the following applications:
Yamaha WR250F 2003-2009
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