Riffraff Diesel Coolant Filtration System / Filter Kit 99-03

Part Number:


$119.52 - $129.52

The Riffraff Diesel coolant filtration system for the Ford 7.3L Powerstroke filters a small amount of coolant with each pass. The Donaldson spin on the filter makes it easy and inexpensive to change coolant as often as you need. Plus, the filters also remove all solid particles. Typically you will use three filters in the first nine months. Once the initial nine months has passed, you will only need to change the filter once a year.


  • 1 Donaldson Coolant Filter
  • Billet Aluminum & Anodized Coolant Filter Assembly
  • Made in the USA Coolant Hoses with Nickle Plated Fittings
  • All Hose Clamps & Hardware for Installation
  • Installation Instructions
  • 100% Made In The USA


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  • 5
    99-03 7.3 Coolant Filter Kit

    Posted by Jim on Jan 17th 2020

    Easy install, top quality parts, and functions exceptionally well.

  • 5
    RiffRaff Diesel Coolant Filtration

    Posted by Timothy Larsen on Dec 16th 2019

    Installed this a few weeks ago, super easy install! From hoses to the bracket, it’s all made out of quality material Have yet to change filter but can’t wait to see the results!

  • 5
    Great quality throughout

    Posted by Blue Boosted F250 on Nov 25th 2019

    Install was very smooth. All items are great quality. Install instructions say basic hand tools but my truck had a 5/16" square drain/pipe plug. Unable to find a socket for it, I ground down a cheap 3/8" extension to remove the plug.

  • 5

    Posted by Chris Messmer on Sep 16th 2019

    For some reason I had been led to believe that it might be a tight fit in my 2003 7.3l F250 with a Ford AIS and the "outside-the-belt" upper radiator hose, but it all fit perfectly and looks like has always belonged there. I like the fit and finish of every part in this kit and the purpose-built radiator bracket replacement (serving triple duty) that I found in no other kit. Well done !!

  • 5

    Posted by Diesel Dave on Jul 28th 2019

    Kit installs easily, adds filtration to the cooling system, same as the semi trucks. I installed this to help increase the longevity of my 7.3

  • 5
    Complete Kit

    Posted by John on Jul 2nd 2019

    Great kit, had everything I needed to install. Impressive quality on the hoses and fittings.

  • 5
    Awesome product as always. Tight fit with upper radiator hose being around the belt. But works perfectly.

    Posted by Benjamin Holcomb on Jun 23rd 2019

    A+ would recomend

  • 4
    Coolant filter kit

    Posted by Chris on Feb 17th 2019

    Would have been 5 stars but the pre-made lines that come with the kit are a pain to install. The reason they are a pain is because the fittings on the lines do not rotate and make install onto the filter housing difficult.

  • 5
    Beautifully made.

    Posted by Bill on Feb 2nd 2019

    Fits and looks fantastic. Very easy to install and everything fit perfect.