M939A2 CTIS O-Rings

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Set of six CTIS O-Rings for your M939A2.  These are the o-rings that go between the valve stem and the air inlet tube.  Sometimes these are the slow leak down points in your CTIS system.  We also have the larger 20" o-rings available for the wheel itself and a set that includes the wheel o-ring and the CTIS o-ring.

What's in the box?

  • Six CTIS o-rings