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Crankshaft Main Bearing Kit; Standard Bore (87-90 4.2L Jeep Wrangler YJ)

Item J113172
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Market Price $116.99 You Save 15% ($17.00)
Our Price

$99.99 (set)

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      Product Information

      Features, Description, Q&A, Specs & Installation


      • OE Replacement for Crankshaft Main Bearings
      • Set of Standard Bearings
      • Provides Smooth Crankshaft Rotations
      • Maintains Proper Crankshaft Position
      • Metal Construction
      • Direct Fit Replacement
      • Reuses Existing Hardware
      • Professional Installation Recommended
      • Sold as a Set of (6) Crankshaft Main Bearings and (1) Thrust Bearing
      • 5 Year Limited Warranty
      • Fits 1987 to 1990 4.2L Jeep Wrangler YJ Models


      Replaces Worn or Faulty Main Bearings. The Jeep’s crankshaft main bearings are subjected to a lot of abuse and it’s no wonder that over time they’ll wear out or even fail. Thankfully, you can replace your Jeep’s factory-discontinued standard-sized bearings using the OMIX Crankshaft Main Bearing Set. It features a set of direct fit bearings for a hassle-free installation.

      High-Quality Manufacturing. OMIX has been providing quality OEM replacement parts for over 50 years. The OMIX Crankshaft Main Bearing Set is made with their usual high-quality manufacturing processes. The precision-machined bearings have the excellent fit, functionality, and reliability that match the OE parts.

      Professional Installation Recommended. While the Crankshaft Main Bearing set is a direct fit replacement, the process to get to the crankshaft is rather complex. It’s highly recommended that the installation of the replacement is performed by a professional mechanic.

      OMIX 5 Year Warranty. OMIX warrants to the original purchaser that the Crankshaft Main Bearing Set is free of defects in material or workmanship. Exclusions will apply.

      Application. The OMIX Crankshaft Main Bearing Set of standard-sized bearings is designed to fit 1987 to 1990 4.2L Jeep Wrangler YJ models.



      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Crankshaft Thrust Bearing
      • (6) Crankshaft Bearings

      Tech Specs


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        Questions & Answers

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        Will It Fit My Wrangler

        • YJ Wrangler 2 Door - 87, 88, 89, 90

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