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Find Internal Engine Parts for your Wrangler

Comp Cams Ovate Wire Valve Spring Kit; 0.450-Inch Max Lift (91-06 4.0L Jeep Wrangler YJ & TJ)Find parts that fit my vehicle

Item J185379
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$100.95 kit

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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Comp Cams Ovate Wire Valve Spring Kit
      • Maximum Lift of 0.450 Inch
      • Improved Performance and Reliability
      • Raw Metal Finish
      • Includes Valve Springs and Valve Seals
      • Reuses the Stock Retainers
      • Requires Cutting Down the Spring Seat Step Diameter from 0.938 Inches to Under 0.830 Inches
      • Direct Replacement
      • Comes in Kits
      • Fits 1991-2006 4.0L Jeep Wrangler YJ and TJ Models

      Description

      Valvetrain Performance Upgrade. The Comp Cams Ovate Wire Valve Spring Kit is designed to increase valvetrain reliability and support higher lift camshafts in 1991-2006 4.0L Jeep Wrangler YJ and TJ models. With a maximum lift of 0.450 inches, this kit is ideal for performance builds requiring better valve control and longevity under higher RPM conditions.

      Construction and Appearance. These valve springs and seals feature a raw metal finish and are crafted from high-strength materials for long-term durability. The ovate wire design allows for improved stress distribution, reducing the risk of fatigue and coil bind. Stock retainers are reused for a simplified installation, while the seals maintain proper oil control and combustion efficiency.

      Installation. This kit installs as a direct replacement, though it does require modifying the spring seat step diameter from 0.938 inches to below 0.830 inches to ensure proper fitment. This modification should be performed by a qualified technician or machine shop. The kit is compatible with stock retainers, reducing additional component requirements.

      Application. The Comp Cams Ovate Wire Valve Spring Kit fits 1991-2006 4.0L Jeep Wrangler YJ and TJ models. It enhances your engine by supporting performance camshafts, improving high-RPM stability, and delivering increased reliability for both street and off-road performance applications.

      Comp Cams 983J-KIT

      CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) a Day

      Difficulty Level:

      Mechanical expertise or professional installation required.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (12) Valve Springs
      • (12) Valve Seals

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Wrangler

      • TJ Rubicon 2 Door - 03, 04, 05, 06
      • TJ Rubicon Unlimited 2 Door - 05, 06
      • TJ Wrangler 2 Door - 97, 98, 99, 00, 01, 02, 03, 04, 05, 06
      • TJ Wrangler Unlimited 2 Door - 04, 05, 06
      • YJ Wrangler 2 Door - 91, 92, 93, 94, 95

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