Reviews from Real Doc's Customers

Fit and finish is great. No complaints from me.

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!

Picked up a crankcase ventilation filter for my 2016 RAM 2500 from Doc’s Diesel and the whole process was easy from start to finish. Finding the right part was simple, shipping was fast, and it showed up in perfect shape. The filter fit exactly as it should, so installation was a breeze. Great experience overall and I wouldn’t hesitate to order from them again.

Brake pads are working great.

The fuel kit shipped fairly quickly but upon recieving I seen the bottom side of the canister housing (where top meets bottom) had a void 1/4 of the way around it so I thought it was a defect. I contacted Doc's and they were great to work with and sent out a new kit. The second one recieved was the same way. This blemish makes me worried that the integrity of the filter is compromised and I haven't decided to install it yet. I haven't contacted Doc's again bc worried it will be the same repeat. The cartridge filter fit great though and the customer service was superb. I gave 3 stars but upped it to 4 stars bc of customer service. Other products bought through Doc's were great too!

My "new" 2016 Ram 2500 SLT Crew Cab Long Bed (with 32K miles on it) is the first diesel I've owned, and it has been a learning experience to say the least. My 1st mod was a new intake manifold to get the jump on the grid heater time bomb, but a couple of costly mistakes tanked my mpg and turned my purring Cummins into a sputtering hobbled nag. One new fuel rail and a couple of pricey sensors later and she's 90% back. But even with my lack of diesel experience I could tell the starts were slow and my mpg's were still lower than before. Doc's 24/7 in the tank made an obvious improvement in both areas. She fires up instantly now and I back over 22 mpg on the highway. I wouldn't have believed it if I hadn't seen it for myself. I'm a believer now. Thanks for all of your top-notch products!

The filters fit as good as they looked- glad I found this.

They are both from the Doc's maintenance pack I do my maintenance every 5k miles. But this time the filter just doesn't feel as good. You can see clearly they is less ridges so there is less to the filter.

So far, so good with the fuel filter. I even got some sweet decals to plaster around my office. I will be purchasing more parts in the future.

Great fit. Color is on point.

Had a pull with my brakes and truck had over 170K on it, I figured just do them all. So bought the kit, and installed. Brakes are working great with less pressure needed to stop and got parking brake adjusted also. Overall very satisfied with the purchase.

Only filters I buy. Great quality and great price. I trust my truck to these filters.