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K&N 25-5166

Round Tapered Airforce Pre-Cleaner Air Filter Foam Wrap 6.625" x 8" x 12"

K&N 25-5166


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K&N 25-5166 Round Tapered Airforce Pre-Cleaner Air Filter Foam Wrap 6.625" x 8" x 12" $39.99
Round Tapered Airforce Pre-Cleaner Air Filter Foam Wrap
  • Top Inside Diameter: 6.625" (168 mm)
  • Base Inside Diameter: 8" (203 mm)
  • Height: 12" (305 mm)
  • Does Not Require Oiling
  • Color: Charcoal Gray

  • K&N 25-5166 Details

    Round Tapered

    • Extends service interval of your filter in very dusty conditions
    • Large open cell foam construction stops 90% of dirt with very low air restriction
    • Cleanable with K&N Filter Cleaner or soap and water
    • This product wraps your air filter with an additional pre-filter


    Height (in.)
    Round Tapered
    Filter Material
    Wrap Type
    Extreme Duty Pre-Cleaner
    Air Filter Bottom Measurement (in.)
    8.000 diameter
    Air Filter Style
    Air Filter Top Measurement (in.)
    6.625 diameter
    Sold individually
    Manufacturer's Part Number:

    K&N Airforce Pre-Cleaners are foam filter wraps designed to extend the service interval of K&N Filterchargers that are being used in very dusty conditions. Made from large, open-cell foam, Airforce Pre-Cleaners will stop 90% of the dirt yet restrict the filter's airflow by only 2%. Red and yellow Pre-Cleaners are made for use with K&N Filter Oil, and they must be cleaned with K&N Cleaner or soap and water. Charcoal gray colored pre-cleaners are made with smaller foam cells that do not use oil. They are designed to be cleaned with K&N Air Filter Cleaner or soap & water.


    • Blocks 90 percent of the dirt before it gets to your filter
    • Only restricts your airflow by 2 percent
    • Red and Yellow Pre-Cleaners use K&N filter oil and the Charcoal Gray Pre-Cleaners do not

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