Check the listing for details. M939 Wheel o ring and valve stem grommet M923 combat wheel M925a2 m923a2 5 ton. Listed at 18.25 USD. One new MADE IN USA wheel o-ring and one new valve stem grommet. Valve stem in picture is NOT included but shows the kind of valve stem the grommet in this auction works with. When remounting tires these are the two pieces you will need to ensure a leak free tire mount and this auctionIncludes both of them. The key to successful combat tire mounting is to make sure everything is clean and rust free for mounting! This auction is intended for use on M939 series 5 ton wheels. The wheel o-ring is for the 2 piece combat wheels that are bolted together using the 1 1/8” nut. If you have the smaller 15/16" nuts this is not the correct o-ring. The items being purchased were manufactured no longer than 9 months (as we turn out inventory frequently) ago so they are fresh with no worries of crusty surplus rubber. We have valve stems in another auction if needed. Let us know where we can help with your truck part and tire needs as we carry 395, 1400r20 and 1600r20 tires. On the web at Army 6x6 LLC Q's? Jim 5076762972.