Dennis Kirk Inc.
Search Within
Ride Search
Top 3 Product Matches

Bottom-End Rebuild Crankshaft Kit - WPC128B

  • Part #:
  • Mfg Part #:
  • OEM/Ref#:
1 / 5

Bottom-End Rebuild Crankshaft Kit - WPC128B

  • Part #:
  • Mfg Part #:
  • OEM/Ref#:
MSRP: $342.11

Price: $338.74 1% off!
Make sure this fits your ride
Ships Free
In Stock - 2 on Hand

Wiseco Bottom-End Rebuild Crankshaft Kit - WPC128B
  • Precision-trued to OEM specifications and factory assembled
  • Shot-peening eliminates residual stresses and smoothly blends the rod forging surfaces
  • Corrosion-resistant surface treatment
  • 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 increase oil retention and reduce friction between rod and washer interface
  • Crank pin bearings are manufactured with 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
  • Crankshaft comes with top-end bearing and gasket


Included Items:

(1) Crankcase

(2) 28x68x18 Bearings

(2) Inner clutch cover gaskets

(1) Outer clutch cover gasket

(1) Generator cover gasket

(1) Pump cover gasket

(1) Elbow gasket

(2) O-rings

(1) 25x45x7 Seal

(1) 20x40x7 Seal

(1) 13x22x5 Seal

(1) 8x18x4 Seal

(1) 8x18x10 Seal

(1) 12x18x4 Seal

(1) 8x14x4 Seal

(1) 30x40x7 Oil seal

(1) 18x30x7 Oil seal

No instructions

Part #: WPC128B
Mfg #: WPC128B
Type Crankshaft Assembly
Units Kit
Weight 12.55 lbs
Alternate/OEM Part Number(s):
WARNING: Cancer and Reproductive Harm -
Resources & Manuals
Fitment for Wiseco Bottom-End Rebuild Crankshaft Kit - WPC128B

Part WPC128B fits the following machines

  • KX250 1992-2001
Reviews & Questions
Start typing your question and we'll check if it was already asked and answered. Learn More
Browse 1 question Browse 1 question and 1 answer
When could I get a crank rebuild kit for a 99 kx250?
Michael H on Mar 19, 2019
BEST ANSWER: We have one of these in stock right now
There are no reviews for this item. Write Review