Over time all internal engine wear surfaces become worn. This is true for crankshaft journals, connecting rods, camshaft lobes, piston rings, bearings, etc. When rebuilding a worn out engine youll need to replace them all in order to regain the engines original performance. And, lets face it, Jeeps need all the power we can get. Omix offers new high quality replacement engine parts to get your Jeep back on the road. This replacement exhaust valve fits 73 - 80 CJ5, 73 - 75 CJ6, 73 Commando, 73 - 74 DJ5, 73 J - Series trucks, 76 - 80 CJ7 and 73 - 80 CherokeeWagoneer SJ models equipped with 3.8, 4.2or 5.0 liter engines. Sold individually - use one per cylinder. Replaces OE 3224597