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Aluminum Valve Cover with 4.2L Logo - Black (87-91 4.2L Jeep Wrangler YJ)

Item J21348
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$104.99 (each)

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      Product Information

      Features, Description, Reviews, Specs & Installation


      • Aluminum Valve Cover
      • Replaces Factory Plastic Cover
      • Black
      • 5 Year Limited Warranty
      • Fits 1987 - 1990 YJ Wranglers


      Specs. This aluminum valve cover by Omix-ADA is a great replacement for the plastic factory equipped cover. It features a stylish black finish that states the engine's displacement (4.2 L). Please note that this cover may require modifications to the cylinder head to be installed.

      Application. For use with 1987 - 1990 YJ Wranglers with the 4.2 L engine with a plastic valve cover. Does not work as a replacement for steel covers.

      Fitment: 1987 1988 1989 1990 Details

      MPN# 17401.08

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (5)

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      Ratings Summary

      2.8 out of 5 overall rating from 5 customers

      • June 03, 2019

        1 1989 Wrangler - Creepy2169

        DOES NOT FIT!!!

        Really frustrated that I missed another review saying the same. This does NOT fit on a 1989 YJ with a 4.2. The instructions in the box say it only fits early 80’s cherokees. The bolt holes are off by about half the width of the bolt to fit. It is also a good 2 inches taller so it may have clearance issues but didn’t get that far since I couldn’t bolt t down.

        Helpful (0)
      • January 16, 2019

        4 1987 Wrangler - ThomasS


        Really nice valve cover! Much better than the stock plastic junk. With a small amount of modification this val ve cover should last the life of my Jeep.

        Helpful (3)
      • January 15, 2019

        3 1989 Wrangler - JulioT

        Very nice

        Item it's very nice looking on the engine , unfortunely don'n sit well and is harx to seal I still trying to figured out to find a solution

        Helpful (3)
      • August 21, 2018

        1 1988 Wrangler - MichaelC

        Will not fit 87 and newer YJ

        Despite what extreme terrains discripstion shows this does not fit 87 and newer, surprisingly enough it's on the first page of the instructions provided. If I had an 86 or older 4.2 I would definitely purchase its is a nice looking cover. That being said I am still waiting on extreme terrains to send me a return label.

        Helpful (12)
      • June 06, 2018

        5 1987 Wrangler - David

        Looks good

        Well made, heavy duty, fits great, came with gaskets, bolts and gromets.

        Helpful (12)

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Valve Cover

      Will It Fit My Wrangler

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

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