6637 Replacement Cover - Black

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Made to high standards, these covers are designed to extend the life of your air intake filter while also giving you a way to visually see the amount of dust collected.  The covers work equally well on both oiled and non-oiled filter elements to prevent larger debris from prematurely reducing critical air flow to your engine.

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  • 5
    A must have!

    Posted by LEONEL MONTES on May 30th 2018

    Pre filter fits great and will help extend the life of your filter, not to mention it looks great.

  • 5
    Looks Good and Works

    Posted by Mike M on Aug 8th 2017

    The filter looks nicer with the cover. The cover fits nice and snug. I don't live in s dusty area, but after 2 weeks it has a fine film of dust on it. Should help the filter last longer.

  • 5
    Very durable cover.

    Posted by Unknown on Jun 24th 2017

    Covers very durable last long time I washing a lot run down Dusty dirty roads here in Florida. Riff Raff is my go-to place for these products.

  • 5
    Perfect and great price.

    Posted by Unknown on May 26th 2017

    Looks good, fits good, fast shipping and great price.

  • 5

    Posted by Unknown on May 10th 2017

    Looks nice and is a great pre filter

  • 5
    Great filter protection

    Posted by Unknown on Mar 2nd 2017

    Very good quality cover. Highly recommended.

  • 5
    Filter cover does its job

    Posted by Kevin on Dec 29th 2016

    If you are looking for a cover for your filter that fits, does its job and is available in fancy dance colors - this is it. Highly recommended for ANY large, 6637 style filter as it protects it from excessive external wear issues.

  • 5

    Posted by Unknown on Oct 28th 2016

    cleans the engine compartment up and love that it says Riffraff on it

  • 5
    Great quality

    Posted by Cass on Sep 13th 2016

    I've used other pre-filters such as afe ,but none of them on the market fits like this unit from clay -fits like a tight glove . Awesome product