Piston 4.2L .030 (79-90 Jeep CJ)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 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 fits 79-83 CJ5, 79-86 CJ7, 81-86 CJ8 Scrambler, 87-90 Wrangler YJ, 79-83 Cherokee / Wagoneer SJ, 79-87 J-Series Trucks and 84-86 Grand Wagoneer SJ models equipped with 4.2 liter six cylinder engines with 0.030- in. over-bore. Sold individually- use 6 per engine. Replaces OE 8134441.030

Whether its for a full rebuild or some standard maintenance, the proper engine components are needed to make sure your vehicle is running smooth.

Pistons are another vital component to an engines performance. If you are looking to upgrade the horsepower or add more boost to your car, we recommend upgrading to a forged set of pistons that can handle the boost and horsepower.

Omix is the worlds largest independent Jeep parts manufacturer with a full line of Jeep parts and accessories. Over the years, Omix has expanded the business, continuously investing in new products and product lines, allowing Omix to service the Jeep enthusiast market from 1941 to the most recent models. With continued opportunities arising, a brand new generation of Wranglers was introduced to the world with the 2018 Jeep Wrangler JL/JLU and the 2020 Jeep Gladiator, the first Jeep truck in many decades. Omix is anxious to continue the companys legacy of offering Jeep enthusiasts around the globe a wide range of innovative products.

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