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Omix-ADA Black 4.2L Aluminum Valve Cover Kit (Black) - 17401.07


  • Omix-Ada | Part Number: OAI17401.07
  • Style:Finned
  • Finish:Black
  • Material:Aluminum
  • Fitment:Direct Fit


Direct OE replacement Jeep parts and accessories built to the original specifications by Omix-ADA. Limited five year manufacturers warranty.


Question & Answers

2 Answered questions

This item says it is a direct replacement. It also says drilling required. What, where and why is drilling required if it is a direct replacement?

Asked by Tom from Sunnyavle Ca on

Tom, this Omix-Ada Aluminum Valve Cover is a direct replacement as far as size. But you may have to do some drilling because you are replacing a plastic cover with an aluminum cover. The following is copied directly from the Omix-Ada install instructions that are included with the valve cover. " Step.3 ( Tapping of blank holes) You may find 5 of the 5/15” aligned holes will have no threads. These holes were used as guide hole only for the plastic cover and will require tapping. Tap the holes with a 5/16” x 18 thread “bottom” tap. CAUTION!! DRILLING HOLES TO BEEP WILL RESULT IN DRILLING INTO THE WATER JACKET!!" and "Step.4 (Missing holes) On some early models you may find two holes missing on each end of the head. For this application it will be required that the hole locations be marked with the new aluminum cover in position. Secured the cover in place with all existing holes aligned and mark the new hole locations with a good permanent marker. With the holes properly located use a punch to mark the center of the hole to insure proper drill bit placement. With great care drill the holes and use a ¼” x 20 “bottom” tap." and "Step.5 (Rocker bridge replacement) It may be required to replace the studded rocker bridges used for the plastic valve with new non - studded bridges under part number MRM1718 (17408.11) or the studs may be cut off if they interfere with fitment of the aluminum cover. Additional modifications may be needed to air conditioning and or air cleaner brackets for proper fitment. DO NOT modify or cut the aluminum valve cover as this will void any warranty. " I hope this helps clear it up a little bit.

Answered by Jason L from Sunnyavle Ca on

Were is the "drilling" required to install this cover ? Why?

Asked by Chuck from Fairbanks, AK on

This valve cover is designed to replace the factory plastic valve cover. Some of the bolt holes on the head are blank because they were used as guide pins for the plastic cover. The new aluminum cover uses these as addition clamping force so drilling and tapping is required. Also you may need to cut the studs off the rocker arm bridges or replace them. The part number for replacement rocker arm bridges is #17408.11

Answered by Nick from Fairbanks, AK on


How do you get to work? At Omix-ADA we take the road less traveled. With an in-house engineering department the company continuously develops and tests new products. At Omix-ADA the team knows what it is like to work in an environment the preserves the rich Jeep heritage. They get to live it everyday when they arrive at their offices. With thousands of products that we support a vast network of retailers and distributors. Whatever Jeep you drive, Omix-ADA and Rugged Ridge make Jeeps rock. For longer than twenty years, Omix-ADA has engineered and fabricated over 15,000 different restoration and replacement parts for Jeep drivers. Omix-ADA Corporation owns the quality aftermarket off-road brands Rugged Ridge, Alloy USA, Precision Gear, and Outland Automotive. Shop Omix-Ada Now

This Product Fits the Following:

  • 1986 Jeep CJ7 Base  
  • 1986 Jeep CJ7 Laredo  
  • 1986 Jeep CJ7 Renegade  
  • 1986 Jeep Grand Wagoneer (SJ) Base  
  • 1986 Jeep J10 Base  
  • 1985 Jeep CJ7 Base  
  • 1985 Jeep CJ7 Laredo  
  • 1985 Jeep CJ7 Renegade  
  • 1985 Jeep Grand Wagoneer (SJ) Base  
  • 1985 Jeep Grand Wagoneer (SJ) Limited  
  • 1985 Jeep J10 Base  
  • 1985 Jeep Scrambler Base  
  • 1985 Jeep Scrambler Laredo  
  • 1985 Jeep Scrambler Renegade  
  • 1984 Jeep CJ7 Base  
  • 1984 Jeep CJ7 Renegade  
  • 1984 Jeep Grand Wagoneer (SJ) Base  
  • 1984 Jeep Grand Wagoneer (SJ) Limited  
  • 1984 Jeep J10 Base  
  • 1984 Jeep Scrambler Base  
  • 1984 Jeep Scrambler SR  
  • 1983 Jeep Cherokee Wide Track Laredo  
  • 1983 Jeep CJ5 Base  
  • 1983 Jeep CJ5 Laredo  
  • 1983 Jeep CJ5 Limited  
  • 1983 Jeep CJ5 Renegade  
  • 1983 Jeep CJ7 Base  
  • 1983 Jeep CJ7 Laredo  
  • 1983 Jeep CJ7 Limited  
  • 1983 Jeep CJ7 Renegade  
  • 1983 Jeep Cherokee (SJ) Base  
  • 1983 Jeep Cherokee Wide Track Chief  
  • 1983 Jeep Cherokee (SJ) Pioneer  
  • 1983 Jeep J10 Base  
  • 1983 Jeep Scrambler Base  
  • 1983 Jeep Scrambler SL  
  • 1983 Jeep Scrambler SR  
  • 1983 Jeep Wagoneer (SJ) Brougham  
  • 1983 Jeep Wagoneer (SJ) Limited  
  • 1982 Jeep Cherokee Wide Track Chief  
  • 1982 Jeep Cherokee Wide Track Laredo  
  • 1982 Jeep CJ5 Base  
  • 1982 Jeep CJ5 Laredo  
  • 1982 Jeep CJ5 Limited  
  • 1982 Jeep CJ5 Renegade  
  • 1982 Jeep CJ7 Base  
  • 1982 Jeep CJ7 Laredo  
  • 1982 Jeep CJ7 Limited  
  • 1982 Jeep CJ7 Renegade  
  • 1982 Jeep Cherokee (SJ) Base  
  • 1982 Jeep Cherokee (SJ) Chief  
  • 1982 Jeep J10 Base  
  • 1982 Jeep Scrambler Base  
  • 1982 Jeep Scrambler SL  
  • 1982 Jeep Scrambler SR  
  • 1982 Jeep Wagoneer (SJ) Base  
  • 1982 Jeep Wagoneer (SJ) Brougham  
  • 1982 Jeep Wagoneer (SJ) Limited  
  • 1981 Jeep Cherokee Wide Track Chief  
  • 1981 Jeep Cherokee Wide Track Laredo  
  • 1981 Jeep Cherokee Laredo  
  • 1981 Jeep CJ5 Base  
  • 1981 Jeep CJ5 Laredo  
  • 1981 Jeep CJ5 Renegade  
  • 1981 Jeep CJ7 Base  
  • 1981 Jeep CJ7 Laredo  
  • 1981 Jeep CJ7 Renegade  
  • 1981 Jeep Cherokee (SJ) Base  
  • 1981 Jeep Cherokee (SJ) Chief  
  • 1981 Jeep J10 Base  
  • 1981 Jeep Scrambler Base  
  • 1981 Jeep Wagoneer (SJ) Base  
  • 1981 Jeep Wagoneer (SJ) Limited  


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