XDP Steel Alloy Dowel Pin XD508 2001-2016 GM 6.6L Duramax (For Use With XDP Duramax Crankshaft Pin Kit XD331) The XDP Steel Alloy Dowel Pin XD508 can help avert catastrophic engine failure from a sheared dowel pin in your 2001-2016 GM 6.6L Duramax. This...