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Master Filter Kit (87-90 4.2L Jeep Wrangler YJ)

Market Price $21.99 You Save 8% ($1.82)
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$20.17 (kit)

FREE Shipping on orders over $75

  • Item J113589

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    Features & Details

    • Durable Construction Combination of Steel, Rubber, Plastic, and Paper
    • Precision Made
    • Uses Existing Hardware
    • Sold As A Kit
    • Improves Drive Performance
    • Removes Water Moisture
    • Manages Oil Environment
    • Provides Excellent Filtration
    • Easy Installation
    • Install Time Is 1 Hour
    • Fits All 1987-1990 4.2L Jeep Wrangler YJ Wrangler Models
    Unparalleled Technology. Crown Automotive continues to build quality aftermarket upgrades that will give your Jeep the edge when it comes to performance. The Crown Automotive Master Filter Kit MFK21 is an unparalleled filter kit that improves your engine’s performance. Made for a combination of sturdy materials that include OE certified steel, rubber, plastic and paper, this kit is precision made to be an exact fit to your Jeep.

    Incomparable Quality. This incredible filter kit provides excellent filtration by managing your oil’s environment under the hood. This clever technology removes water moisture so you won’t have to worry about contaminating your oil well supply.

    Superior Performance. Made in America, this superior kit is sold as a kit and uses your Jeep’s existing hardware for an easier installation.

    Installation. The installation for this product can be easily accomplished in approximately 1 hour. The need for common garage tools is required.

    Application. The Crown Automotive Master Filter Kit MFK21 fits all 1987-1990 4.2L Jeep Wrangler YJ Wranglers models.

    Fitment: 1987 1988 1989 1990 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Filter
    Installation Info
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