Reviews from Real Doc's Customers

Fast, easy, and reliable service and parts make Doc's Diesel the best company around. Hands down.

Just got them on the truck everything bolted on like it should they look great. First day put on some heavy miles with heavy loads and truck feels awesome . Will be posting an install vid on my youtube! Subscribe and check it out thanks.

CCV filter doesn’t fit correctly into the cover and caused my cover to break tabs off and strip threaded inserts out because the cover wouldn’t sit flush. I’ve used Doc’s for lots of fuel filters for the last couple years but this is my first CCV filter from them and this has me questioning whether or not I’ll ever use them again.

First time I've used Docs Diesel oil, filter, cabin filter. So far so good. There is no tick that'd you commonly hear with other oils and the cabin filter thick heavy duty. I will buy again. Ive been using the def guard for couple months now and I think it helps

I can only speak to the Doc’s oil filter from a visual perspective because I haven’t installed any yet. The only difference is that the Doc’s filter is about a 1/4” shorter than the Motorcraft filter. I change my oil and filter before the recommended intervals so this does not concern me.

Perfect fit. Was worried about throwing a code not being OEM, but everything was fine. A little disappointed in how long it took to receive them, but it ended up working with my schedule.

First time ordering through Doc’s. Ordered two of the 6.7 Powerstroke filter kits, plus extra oil filters. Every filter fits like OEM filters. When you place Doc’s oil filter next to a Motorcraft oil filter the Doc’s filter is a bit smaller, maybe a 1/4” difference. But the price reflects it and I change my oil at shorter intervals than recommended so I'm not overly concerned out a little less filtration.
It's nice to find everything for servicing your truck in stock at one location.

This is my new favourite hoodie (I have a lot of hoodies) but the design is spot on, love the clean look. And it’s insanely comfy and fits perfect in a size large. Thanks Docs Diesel!

good quality, complete kit, good shipping. Good Price. awesome .

Fit and finish is great. No complaints from me.

This filter did not work on my truck and the hose was pre set in the wrong direction. Once I installed the hose it had a 90 degree bend restricting air flow. Prior to installing your filter be sure your hose is set to the right direction or it will have a sharp 90 degree bend. If the hose swiveled it wouldn't of done this but none of the hoses swivel on any of the CCV filters. It was probably just a bad one in many that are sent out but this is the reason for a one star rating. I just want people to be aware of this before install so you don't have to waist time installing it if your CCV has the hose set to the wrong direction. As you can see in the photos below the hose is not set to the correct direction and you have to bend the hose from the left side to the right. I had ordered fuel filters with this order and those fit great.

Great filters

Just installed my first order from Doc's. Fuel filters and CCV filter. Everything fit as they should and appear to be good quality.

Since i started using Docs filters, it's had become cheaper, easier and better for my ole truck. Order, wait, receive. install that easy l

These hub bearings worked perfect for my 2017 Ram 2500 Cummins. Went pretty smoothly. Sort of self explanatory. Quality hub bearings. No more noise. I also changed front brakes and rotors since I had to remove them anyway.

So far pretty pleased with Doc’s products for my 2022 Ram 3500, 6.7L, 68RFE, LB, DRW. Sometimes feels like they are a little slow to ship, though

Fit like a glove, easy to install . Great price with superior shipping. Use Docs and save yourself a trip to box stores & money.

I’m honestly really disappointed with this Doc’s CCV filter kit. The hose was manufactured way too long, and because of that it doesn’t route correctly at all. When installed, it pinches the line instead of sitting naturally, which is obviously not acceptable for a product that’s supposed to improve crankcase ventilation.

You can clearly see in the photo that there’s no clean way to run the hose without it kinking or putting pressure on the fittings. For something marketed as a direct fit, this definitely isn’t. I shouldn’t have to modify or trim a brand-new kit just to make it work properly.

For the price and reputation, I expected much better fitment and quality control. Very frustrating experience overall.

I like that I didn’t have to go to a store to buy what I needed and to then have to bring it all home just to find that I eight F_Ked up or an employee of the store got me the wrong part. I know I get that it’s still my fault if an employee of the store(s) hand me the wrong thing but when life and business gets in the way $#!t happens; and, that is my point. All that I need to do is order the kit a couple days before you plan to do the work and the box is right there to be positioned in place for the job. The parts seem to be of great quality and as a veteran I get eleven percent off. So far I am sold on Doc’s.

Just replaced my fuel filter and air filter on my truck. Products match perfectly! Will be reordering soon.

This was my first time using DOC'S. I ordered oil, fuel, and air filters. Everything arrived on time, fit, and looked to be good quality. I'll order again!

Since jumping back in a diesel pickup truck, I put many miles a month. Dealership prices are outrageous and box stores are also high. My RV Transport buds told me about Doc’s. I tried them on my first oil change, saved $$ and all the filters fit perfectly and have been using them pretty much on a monthly basis. CCV filter is another one. Every 50K. Thanks Docs for great pricing and superior shipping.

Everything fit no codes runs better going to keep getting this kit when I need to work on the rig

So I was the lucky winner of the 2025 Ram 6.7L this past August. At that time the Oil Filters for the truck were still under development. I received notice in December that Doc's had the 2025-2026 6.7L Oil Filters available for purchase. Before I could place my order, Max and his crew had already shipped me the full maintenance kit. Was not expecting this at all. Thanks Max. Wishing Doc's Diesel the best in 2026!

My second time changing fuel filters for my 6.7 Cummins using Doc’s filters. Great price point for great filters!