Engine Piston; Standard Bore (87-90 4.2L Jeep Wrangler YJ)Find parts that fit my vehicle

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 you'll need to replace them all in order to regain the engine's original performance. And, let's face it, Jeep's need all the power we can get. We offer new high quality replacement engine parts to get your Jeep back on the road. This replacement piston fits 79-83 CJ5, 79-86 CJ7, 81-86 CJ8 Scrambler, 79-87 J-Series Trucks, 79-83 Cherokee SJ, 80-83 Wagoneer, 87-90 Wrangler YJ and 84-86 Grand Wagoneer SJ models equipped with 4.2 liter engines. Standard bore. Sold individually- use 6 per engine. Replaces OE 8134441. Piston 4.2L Standard 1979-1990 Jeep CJ and Wrangler.

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