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Find Internal Engine Parts for your Wrangler

Crankcase Breather Filter (78-90 2.5L or 4.2L Jeep CJ5, CJ7 & Wrangler YJ)Find parts that fit my vehicle

Item J136189
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      Product Information

      Features, Description, Q&A, Specs & Installation

      Features

      • Crankcase Breather Filter
      • Designed For Efficient Engine Ventilation
      • Helps Prevent Contaminants From Entering Engine
      • Constructed From Durable Materials
      • Optimized For Long Service Life
      • Direct Fit Replacement
      • Easy Maintenance Design
      • Improves Engine Performance And Longevity
      • Thirty-Minute Installation
      • Limited Manufacturer Warranty
      • Fits 1978-1990 2.5L or 4.2L Jeep CJ5, CJ7 & Wrangler YJ Models

      Description

      Maintain Proper Engine Ventilation. The Crankcase Breather Filter for 1978–1990 Jeep CJ5, CJ7, and Wrangler YJ models with 2.5L or 4.2L engines helps regulate airflow between the engine crankcase and the intake system. By filtering out oil vapors and debris before they can enter the intake, it ensures cleaner air circulation and supports optimal combustion efficiency.

      Durable Filter Media for Long-Lasting Protection. Crafted from high-quality filtration materials, the Crankcase Breather Filter effectively traps contaminants while allowing unrestricted airflow. This helps maintain consistent engine performance and prolong the life of internal engine components.

      Essential for Proper PCV System Function. As part of your Jeep’s Positive Crankcase Ventilation (PCV) system, this breather filter plays a critical role in reducing harmful emissions and preventing pressure buildup in the crankcase—key to keeping your vintage Jeep running smoothly.

      Installation. Putting this Crankcase Breather Filter on your 2.5L or 4.2L Jeep CJ5, CJ7 & Wrangler YJ takes 30 minutes to install.

      Warranty. There is a limited manufacturer warranty on this product.

      Application. The Ceramic Brake Pads with Brake Fluid and Cleaner fits 1978-1990 2.5L or 4.2L Jeep CJ5, CJ7 & Wrangler YJ models.

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

      Installation & What's in the Box

      Installation Info

      Installation Time

      (approx) 30 Minutes

      Difficulty Level:

      Simple installation for anyone.

      Installation Guides

        No guide available for this part yet.

      What's in the Box

      • (1) Crankcase Breather Filter
      • (1) Installation Grommet

      Tech Specs

      4.7

      Reviews of similar Engine Products (202)

      Questions & Answers

      No questions about this product yet. Ask the First Question

      Will It Fit My Wrangler

      • CJ7 Wrangler 2 Door - 78, 79, 80, 81, 82, 83, 84, 85, 86
      • YJ Wrangler 2 Door - 87, 88, 89, 90

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