Valve Guide for Kohler K241, K301, K321, K341, M10, M12, M14, M16 Engines

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Frequently bought together:


iSaveTractors Valve Guide for Kohler K241, K301, K321, K341, K482, K532, and K582 Engines.

Will also Fit M10, M12, M14, M16 Magnum Series Engines.


  • ID: 0.309"
  • OD: 0.625"
  • Length: 2.129"


  • Kohler: 235007-S



These guides will need to reamed to a final size of .3125" ID. You can do this with a 5/16" Chucking Reamer Tool in a handheld power drill or with a handheld tap wrench chuck. This is also cited on page 11.6 of the Kohler Service Manual.

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11 Reviews

  • 5
    valve guids

    works great , good value

  • 5
    The problem fixer I hope

    Does this stop it from burn oil or smoking

  • 5
    Valve guides, carburetors all great

    Awesome to deal with

  • 5
    Great Product

    Highly recommend

  • 5
    Valve Guides

    Just as described and fit well. Only thing I would add is the option of a reamer to be included to ream them after installation. Not many places around my area carry a 5/16 reamer for some reason.

  • 3
    Polish the end before installing.

    These are a good replacement for a K341 but a very tight fit. Best to use a driver with a pneumatic hammer. The guide had a tool burr on the end that I sanded off before installing.

  • 5
    simplisity is usfull

    I get back later

  • 5
    Quality part.

    Old guide must be removed, new one pressed in and reamed with .325" chucking reamer. Complete instructions are available online from factory Kohler manual. Could pose problems if you don't have basic machining skills.

  • 5

    I live in Michigan and I had my order in two days.

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