Yamaha YZ 400 1976 - 1979 Koyo Crank Shaft Bearing & Seal Kit


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Customize Yamaha YZ 400 1976 - 1979 Koyo Crank Shaft Bearing & Seal Kit

Koyo Crank Shaft Bearing and Seal Kit

A Pair of Genuine OEM matched Crank Shaft Bearing featuring high-speed KOYO bearings in the correct tolerance as originally supplied by manufacturer. KOYO bearings are fitted as standard by Yamaha, Honda, Kawasaki and Suzuki.

To complete the kit a set of replacement crank seals  are also included use in probably one of the most harshest environments in an engine. Each crank seal has been selected for performance and reliability.

The Crankshaft seals feature a carbon/fluorocarbon pad on seal lip and stainless steel garter springs to reduce start-up friction, enhancing dry-start performance and reducing crankpin wear


  • 2 X Bearings in the correct tolerance
  • 2 x Crankshaft Seals in the correct material and design
More Information
Fitment Years 1976 1977 1978 1979
Model YZ 400
Make Yamaha
Manufacturer KOYO
Component Type Crank Bearings & Seals Kit
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