Riffraff Diesel 6637 Dry Washable Filter
Using proprietary blue dry synthetic media, our 6637 Dry Washable filter flows 10.53% more air than Donaldson's filter all while maintaining a 99.98% efficiency using the ISO A2 Fine Dust test criteria.
100% Made in the USA
Our Dry Filtration, Washable Filter can easily be rinsed off with a garden hose, lightly blown dry with shop air and allowed to air dry up to 5 times all while increasing the useful life of your filter and keeping the cost low.
4 Reviews Hide Reviews Show Reviews
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Washable 6637 Filter
This is the best 6637 filter for the money. Paid for itself the first time I washed it.
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Riffraff Blue Filter
Already paid for itself, have washed it from all the dust on the farm. I am happy to be able to buy a few less filters every year.
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Excellant Filter
I was impressed by how much better this flows than my Napa 6637. It was a direct replacement and I now have zero smoke on hard throttle and I can hear the turbo better. I am very happy I can even wash it out a couple times to allow it to last longer. Riffraff Rocks!
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Very satisfied
Very satisfied
