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Nuffield Tractors

86K144 - Inlet valve guide

  • Brand: Nuffield Tractors
  • Condition: New
  • Part Number: 86K144
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£4.95 exc VAT

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86K144 Inlet Valve Guide for BMC and Leyland Engines

Quality replacement inlet valve guide suitable for a wide range of BMC and Leyland diesel engines.

The valve guide supports the inlet valve, ensuring accurate valve movement within the cylinder head. Replacing worn valve guides helps maintain correct valve alignment, reduces oil consumption and contributes to efficient engine performance.

We also offer a professional BMC and Leyland cylinder head reconditioning service. If you would like us to rebuild your cylinder head, please contact us for further details.

Important Information

  • Suitable for BMC 2.6, 2.8, 3.4, 3.8, 5.1 and 5.7 litre engines
  • Suitable for early Leyland 4/98 and 6/98 engines
  • Late Leyland 4/98 and 6/98 engines are fitted with valve guide UAJ1009 – please check before ordering.
  • Supersedes CMK205 on all BMC engine applications.
  • Also listed as JCB part numbers 02/300501 and 988/00047.

If you are unsure which valve guide your engine requires, please contact us with your engine serial number before ordering.

Please click on this link for fitting instructions for this guide. This link will take you to our You Tube page where you can find a lot of useful videos. 

Technical Specification

  • Overall length: 73mm (2⅞")

Fitted to the following engine models:

BMC Engines

  • BMC 2.6
  • BMC 2.8
  • BMC 3.4
  • BMC 3.8
  • BMC 5.1
  • BMC 5.7

Leyland Engines

  • Early Leyland 4/98
  • Early Leyland 6/98

Associated Parts

Features

  • Quality replacement inlet valve guide
  • Correct 73mm overall length
  • Direct replacement for CMK205 on BMC engines
  • Also referenced as JCB part numbers 02/300501 and 988/00047
  • Precision manufactured for accurate valve alignment
  • Ideal for cylinder head repairs, engine rebuilds and restoration projects

Additional Information

Valve guides naturally wear over time, allowing excessive valve movement that can lead to poor sealing, increased oil consumption and reduced engine performance. Replacing worn guides during a cylinder head overhaul helps restore correct valve operation and prolong engine life.

Ideal for customers searching for 86K144 inlet valve guide, CMK205 valve guide, BMC valve guide, Leyland 4/98 valve guide, Leyland 6/98 valve guide, JCB 02/300501, JCB 988/00047, cylinder head valve guide and vintage tractor engine parts.

We specialise in quality parts for Nuffield, Leyland and Marshall tractors and aim to supply reliable tractor spare parts that fit correctly and perform reliably.

Original equipment manufacturers names and parts numbers are quoted for reference purposes only and are not intended to suggest that our replacement parts are made by the original equipment manufacturer.

Product images are for illustrative purposes only and may not always be an exact representation of the product.



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