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Mishimoto Oil Cooler Kit | 2007-2011 Jeep Wrangler JK 3.8L (MMOC-WRA-07)

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2007-2011 Jeep Wrangler JK Oil Cooler Kit by Mishimoto

Your high-performance JK demands Jeep performance parts and a cooling solution that can keep up in the most extreme environments. Whether you are cruising through the dunes or hitting the trails, properly regulated oil temperatures are vital to the life of your engine. Excessive temperatures result in rapid oil degradation and can put a quick end to a fun day in your rig.

Mishimoto has the perfect solution for controlling oil temperatures – the Jeep JK direct-fit oil cooler kit. This kit utilizes precision-engineered JK-specific mounting brackets, pre-made stainless steel lines, oil filter sandwich plate, and all hardware necessary for a quick and easy installation. The Mishimoto Jeep Wrangler JK Oil Cooler Kit adds .75 qt to your oil capacity and reduces temperatures by up to 40°F while maintaining minimal pressure drop.

This kit is a perfect complement to the Mishimoto Jeep JK Transmission Cooler Kit and the Mishimoto Performance Aluminum Jeep Wrangler Radiator for the ultimate cooling solution for your Jeep JK. This oil cooler kit is available with our standard Oil Sandwich Plate or Oil Sandwich Plate with Rear-Mounted Thermosta for additional oil temperature control. As with all our Jeep Wrangler parts, this kit includes the Mishimoto Lifetime Warranty.


  • Application-specific mounting brackets
  • Premade braided stainless steel oil lines with durable –AN fittings
  • Billet aluminum oil sandwich plate in standard or thermostatic form
  • 19-row stacked-plate oil cooler for optimal fluid temperature reduction
  • Compatible with all Mishimoto JK Wrangler parts


  • Reduces oil temperatures by up to 40°F
  • Increases oil capacity by .75 qt

Please Note: This kit comes with MMOP-SPTR, our sandwich plate with rear-mounted thermostat. Mishimoto does not recommend using MMOP-SPT due to suspension clearance issues.


  • 2007 - 2011 Jeep Wrangler JK 3.8L

What's In The Box?

  • 3 - Application Specific Mounting Brackets
  • 1 - 19-Row Oil Cooler
  • 2 - 2' 8" Stainless Steel Braided Hose w/ -10AN Fittings
  • 1 - M20 Sandwich Plate (thermostatic option available)
  • 1 - Stainless Steel Sandwich Plate Adapter
  • 2 - Banjo Fitting w/ Bolt M20 x -10AN
  • 2 - 1/8" NPT Plugs
  • 1 - Large O-ring
  • Mounting Hardware



  • Mishimoto Limited Lifetime Warranty