2Bros Parts

CRANKSHAFT BOTTOM KIT 02-04 KX250, WISECO WPC128A KAWASAKI

$536.83Only 1 left

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Delivery to United States 5–8 business days

Spread the cost with Klarna

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Wiseco Bottom-End Rebuild Crankshaft Kit WPC128A. Precision-trued to OEM specifications and factory assembled. Connecting rods are double-forged to 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 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. Part No. 56-175.WI.A.

Specifications
SKU
56-175.WI.A
Brand
Wiseco
Availability
In Stock (1)

Fitments (13)

MakeModelYear
KAWASAKIKX 2501992
KAWASAKIKX 2501993
KAWASAKIKX 2501994
KAWASAKIKX 2501995
KAWASAKIKX 2501996
KAWASAKIKX 2501997
KAWASAKIKX 2501998
KAWASAKIKX 2501999
KAWASAKIKX 2502000
KAWASAKIKX 2502001
KAWASAKIKX 2502002
KAWASAKIKX 2502003
KAWASAKIKX 2502004
General Product Group
Crankshafts & Parts
General Product Type
Crankshaft Bottom End Kits
Variant Id
250151
Delivery5–8 business days
14-Day ReturnsHassle-free
Easy CheckoutCard friendly
Product details

FULL DESCRIPTION

Wiseco Crankshaft Bottom-End Rebuild Kit

This Wiseco Crankshaft Bottom-End Rebuild Kit is designed for high-performance engine rebuilding. It offers superior durability and optimized performance for your motorcycle.

Key Features:

  • Precision-Trued Crankshaft: Engineered to OEM specifications for accurate fitment and reliable operation.
  • Double-Forged Connecting Rods: Ensures consistent dimensions and improved grain flow for enhanced strength.
  • Shot-Peened Surfaces: Eliminates residual stresses and smooths forging surfaces, reducing the risk of fatigue failure.
  • Corrosion-Resistant Surface Treatment: Protects components from environmental damage and extends their lifespan.
  • Case-Hardened Rod Bores: Hardened to 58-62 RC for an optimal bearing running surface.
  • Optimized Crank Pin Bearing Clearance: Ensures maximum performance and efficiency.
  • Precision Honing: Guarantees an ultra-round bearing surface for smooth operation.
  • Engineered Oiling Slots: Maximizes rod strength and bearing life by improving lubrication.
  • Double-Drilled Small Ends: Provide extra lubrication and cooling to the piston pin, reducing thermal distortion.
  • Silver-Coated Bronze Phosphor Thrust Washers: Feature a dimpled design to increase oil retention and reduce friction.
  • High-Quality Crank Pin Bearings: Manufactured from top-grade hot-rolled steel and case hardened to 58-62 RC.
Before you buy

QUESTIONS? JUST ASK

Talk to John or Phil. Real people, Monday to Friday, 10:00 to 17:00 (UK time).

Check the fitment table on this page against your make, model and year. Not sure? Call or email us and we will check it for you before you order.

Yes. We ship from the UK. Orders ship within 3 working days, then delivery to the United States takes 5–8 business days. The delivery price is shown at checkout before you pay. Delivery details

Yes. You have 14 days from delivery to return it, unused and in its original packaging. Contact us first and we will send you the return instructions. Returns policy

By card, PayPal, Apple Pay or Google Pay, or spread the cost with Klarna. Payment is taken securely by Stripe, and the options for your order are shown at checkout.

Any customs duties or import taxes charged in the United States are paid by you when the parcel arrives. Any tax we collect ourselves is shown at checkout before you pay.

More answers in our FAQ.

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