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 piston ring set fits 54 - 64 Truck Station Wagon and 62 - 63 FC - 150170 models equipped with 226 ci 6 cylinder engines with standard bore. One set does one engine. Replaces OE 916688