Name: Crankshaft Bottom Kit 1999-2000 Yamaha YZ250 Wiseco WPC126
Brand: Wiseco
SKU: 56-180.WI

Crankshaft Bottom Kit 1999-2000 Yamaha YZ250 Wiseco WPC126

Wiseco
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Description

Complete crankshaft assembly kit supplied with main bearings and a full gasket set for comprehensive bottom-end service. Factory-assembled and precision-trued to OEM specifications, with engineered oiling features and surface treatments to support durability and reliable operation in high-demand two-stroke use.

Features

Precision-trued to OEM specifications
Factory-assembled crankshaft
Double-forged connecting rod for dimensional consistency and grain flow
Shot-peened rod surfaces to relieve residual stresses
Corrosion-resistant surface treatment on critical components
Case-hardened big- and small-end rod bores to 58–62 RC for optimal bearing surfaces
Optimised crank pin bearing radial running clearance
Precision-honed bearing surfaces for ultra-round geometry
Engineered oiling slots to maximise rod strength and bearing life
Double-drilled small end for improved piston pin lubrication and cooling
Silver-coated phosphor bronze thrust washers with dimpled faces for oil retention and reduced friction
High-quality crank pin bearings

Specifications

Kit contents: Assembled crankshaft, main bearings, complete gasket set
Assembly type: Bottom-end crankshaft kit
Engine type: Two-stroke single
Manufacturer: Wiseco
Manufacturer reference: WPC126

Cross-Reference OEM Part Numbers

56-180.WI
WPC126

Vehicle Fitments

Yamaha YZ250 1999–2000

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 250	1999-2000

Crankshaft Bottom Kit 1999-2000 Yamaha YZ250 Wiseco WPC126

Wiseco
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Complete crankshaft assembly kit supplied with main bearings and a full gasket set for comprehensive bottom-end service. Factory-assembled and precision-trued... Read more

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SKU: 56-180.WI

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Description

Complete crankshaft assembly kit supplied with main bearings and a full gasket set for comprehensive bottom-end service. Factory-assembled and precision-trued to OEM specifications, with engineered oiling features and surface treatments to support durability and reliable operation in high-demand two-stroke use.

Features

Precision-trued to OEM specifications
Factory-assembled crankshaft
Double-forged connecting rod for dimensional consistency and grain flow
Shot-peened rod surfaces to relieve residual stresses
Corrosion-resistant surface treatment on critical components
Case-hardened big- and small-end rod bores to 58–62 RC for optimal bearing surfaces
Optimised crank pin bearing radial running clearance
Precision-honed bearing surfaces for ultra-round geometry
Engineered oiling slots to maximise rod strength and bearing life
Double-drilled small end for improved piston pin lubrication and cooling
Silver-coated phosphor bronze thrust washers with dimpled faces for oil retention and reduced friction
High-quality crank pin bearings

Specifications

Kit contents: Assembled crankshaft, main bearings, complete gasket set
Assembly type: Bottom-end crankshaft kit
Engine type: Two-stroke single
Manufacturer: Wiseco
Manufacturer reference: WPC126

Cross-Reference OEM Part Numbers

56-180.WI
WPC126

Vehicle Fitments

Yamaha YZ250 1999–2000

Vehicle Compatibility

Please check the exact model and year before ordering.

Manufacturer	Model	Years
YAMAHA	YZ 250	1999-2000

Shipping & Delivery

How long will my item take to arrive?

Orders are typically dispatched within 1 working day and are shipped on a 24hour (non-guaranteed) service.

Where do you ship to?

We currently only ship orders within the UK.

How can I track my order?

Once your order has been dispatched, you will receive a tracking code. Tracking information is emailed to the email address that was provided when placing the order.

Can I collect my order?

Unfortunately we do not offer order collections from our fulfilment centre.