DOC'S DIESEL
Doc's Diesel Filters are spec'd and designed to meet or exceed the quality/performance of the original filters (OEM's) that come in your vehicle. Doc's premium grade media filter paper used on all Doc's Filters is what sets Doc's above the rest.


We wanted to go one step further in customer trust by providing,SAE J1985 3rd Party Testing of our parts.We did a full upstream and downstream efficiency testing along with a single pass efficiency test method. Our main fuel filters have been 3rd party tested, and as we get more testing we will be reporting the results.
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Sweet!!!
They seem to be high quality and fit right in, no fuss no muss. No codes came on after swapping so the truck likes them and so do I!! Will definitely be using from now on, thanks fellas!!!


Ram 3500
Great product! The only thing I will put in my truck.

2021 Ram 2500 cummins
Filter set arrived fast, all fit perfectly, great value!

Easy Peasy
All the filters were perfect replacements on my Ram 3500, only regret was I didn’t go ahead and get the cabin air filter !!! Allen W.