Riffraff Diesel 6637 Replacement Filter

Part Number:
RDPFILTER

Manufacturer:

$67.11
$48.64
(You save $18.47 )
(158 reviews) Write a Review
Riffraff Diesel 6637 Replacement Filter

Riffraff Diesel 6637 Replacement Intake Filter for Ford 7.3L 94-03

We suggest buying them in quantities of 2 as your shipping won't increase much and you will save money.

100% Made in USA

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  • 5
    Better than stock

    Posted by Jon on Sep 9th 2019

    Good product, much better than stock on my 97 f250 PS.

  • 5
    Big ass Filter

    Posted by JP on Sep 4th 2019

    Removed the K&N after reading flow and filter performance tests. This filter will not fit in the stock air box!! 2001 F 250 BUT it will let your engine breath with the Best filtering performance. The washables are all junk, pure hype.

  • 5
    6637 Replacement Filter

    Posted by Jon Dore on Aug 14th 2019

    Every 7.3 should be running these. You should also buy these from RiffRaff because Napa charges 65 bucks for the same filter. Plus why not but from a great company that supports all us diesel bros.

  • 5
    Filter

    Posted by Chad on May 28th 2019

    Great product, great customer service.

  • 5
    6637 filter

    Posted by Mike on May 19th 2019

    Great filter an a amazing price

  • 5
    6637 Air Filter

    Posted by Jerry on Apr 8th 2019

    Great value and fast shipping.

  • 5
    2002 F-250 7.3L 4x4

    Posted by Richard Hernandez on Mar 18th 2019

    Hands down the best option in aftermarket air filters. I immediately noticed a change in performance and the motor is happier on take off and not so sluggish anymore. Pro- Cleaner air and peace of mind. Con- None but the turbo sings nonstop to you!

  • 5
    6637 filter

    Posted by Robert Rolfe on Feb 12th 2019

    The bang for my buck. Always use riffraff filters.

  • 5
    6637 AIR FILTER

    Posted by JERRY C on Oct 20th 2018

    GREAT