GotQuestions? Wheel End

Q. Does STEMCO make a metric valve stem that is common on Asian and Euro brand trucks?

This metric size refers to a smaller hole in the wheel to fit a smaller valve stem. In searching around the US market, I have been unable to find this dimension or able to gauge how common or standard this size is. Ken-Tool makes a slide hammer valve remover for Domestic wheels we're looking to adapt to fit these international wheels.

March 3, 2014

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A. Yes, Europe uses a smaller size valve stem hole (10mm) with an o-ring seal vs a rubber bushing, same as used in typical North American aluminum wheels (not steel).  You can consult a wheel manufacturer or the Tire & Rim Association for more details.  Haltec produces a 540 series valve stem, (e.g. TR-545D) of this configuration. 

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