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MAINTENANCE MADE EASY
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TRUCK MAINTENANCE DONE RIGHT
Diesel or gas, it doesn’t matter. If you rely on your truck, you need parts that hold up. Doc’s Diesel gives you straightforward access to maintenance parts built for Cummins, Powerstroke, Duramax, EcoDiesel, and now, gas trucks and vehicles. Filters, brakes, oil kits, additives, and more without the dealership markup or guesswork, with a fitment guarantee.
Whether you wrench on weekends or depend on your truck every day, we make it easy to get the right parts, keep it running strong, and stay ahead of problems.
TRUCK MAINTENANCE DONE RIGHT
Diesel or gas, it doesn’t matter. If you rely on your truck, you need parts that hold up. Doc’s Diesel gives you straightforward access to maintenance parts built for Cummins, Powerstroke, Duramax, EcoDiesel, and now, gas trucks and vehicles. Filters, brakes, oil kits, additives, and more without the dealership markup or guesswork, with a fitment guarantee.
Whether you wrench on weekends or depend on your truck every day, we make it easy to get the right parts, keep it running strong, and stay ahead of problems.
DIESEL ESSENTIALS
Explore our best-selling maintenance products by category. Click to discover top-rated gear.
Doc's Diesel
RAM 6.7L Cummins 10W-30 Full Synthetic Oil + Filter Maintenance Kit 2019-2024
Replaces 68436631AA, 68157291AA, 05083285AA, 68406048AA
Doc's Diesel
RAM 6.7L Cummins 5W-40 Full Synthetic Oil + Filter Maintenance Kit 2019-2024
Replaces 68436631AA, 68157291AA, 05083285AA, 53034051AB
Doc's Diesel
RAM 6.7L Cummins 15W-40 Full Synthetic Oil + Filter Maintenance Kit 2013-2018
Replaces 68197867AA, 68157291AA, 05083285AA, 53034051AB
Doc's Diesel
Chevrolet/GMC 6.6L Duramax 15W-40 Full Synthetic Oil + Filter Maintenance Kit 2020-2026
Replaces TP1015, PF26, 84554703, CF185
Doc's Diesel
RAM 6.7L Cummins 10W-30 Full Synthetic Oil + Filter Maintenance Kit 2025-2026
Replaces 68677810AA, 68677800AA, 53034051AB, 68406048AA
Doc's Diesel
RAM 6.7L Cummins 15W-40 Full Synthetic Oil + Filter Maintenance Kit 2019-2024
Replaces 68436631AA, 68157291AA, 05083285AA, 53034051AB
Doc's Diesel
RAM 6.7L Cummins 5W-40 Full Synthetic Oil + Filter Maintenance Kit 2013-2018
Replaces 68197867AA, 68157291AA, 05083285AA, 53034051AB
Doc's Diesel
Ford 6.7L Powerstroke 5W-40 Full Synthetic Oil + Filter Maintenance Kit 2020-2025
Replaces FD4625, FL2051, FA2031, FP79
Doc's Diesel
Ford 6.7L Powerstroke 5W-40 Full Synthetic Oil + Filter Maintenance Kit 2011-2016
Replaces FD4615, FL2051, FA1902
Doc's Diesel
Ford 6.7L Powerstroke 10W-30 Full Synthetic Oil + Filter Maintenance Kit 2020-2025
Replaces FD4625, FL2051, FA2031, FP79
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SAE OFFICIAL
IT’S IN THE DETAILS
Tested and inspected to meet OEM Micron and efficiency ratings. View our test results from SGS, the world's leading inspection & certification company. Additional reports are added regularly.
SAE OFFICIAL
IT’S IN THE DETAILS
Tested and inspected to meet OEM Micron and efficiency ratings. View our test results from SGS, the world's leading inspection & certification company. Additional reports are added regularly.
USED BY THE BEST
OVER 500,000+ HAPPY CUSTOMERS
You don't have to take our word for it.
Doc's actually has some dang good filters, heck even their sticker pack actually comes with usable stickers that ain’t so small nobody notices them. Ordered fuel filters for my 2016 6.7 Cummins and Doc's sent updates for every step of the way, and they shipped to my house within 3 days. Cheaper than the parts store, noticeable quality, and shipped out the same day I ordered em. So overall nothing bad to say and will definitely be upgrading my fleet to all docs filters.
TB Cattle Co
It was amazing. Everything was easy to use and very helpful having everything in one package.
Anthony M.
I've heard good things from a lot of a different "truck-fluencers" as I like to call them, so since I own a diesel, I had to see what all the hype was about. The items I ordered shipped fast and seem to be great quality. Also love the fact that they sent 4 nice stickers along with it!
John C.
I use the filters and oil kits to service my fleet of trucks (4). I own a landscaping company and we are hard on our trucks, and it’s nice to have a convenient way to buy the correct amount of oil and all filters in one place.
Kameron C.
I did my oil change with y’all’s 10 W 30 full synthetic with the hot shot secret with fuel filters and immediately knew the difference and sounded better. Ran better. I was getting 20 miles to the gallon now I’m upwards of 24. Absolutely getting this for the rest of its life and my next truck’s life.
Brandon H.
Easy to order, had a question got a call back very quickly and product was very nice stuff! Definitely will continue ordering my oil changes through docs 🤙
Dakotah W.
OVER 500,000+ HAPPY CUSTOMERS
You don't have to take our word for it.
I did my oil change with y’all’s 10 W 30 full synthetic with the hot shot secret with fuel filters and immediately knew the difference and sounded better. Ran better. I was getting 20 miles to the gallon now I’m upwards of 24. Absolutely getting this for the rest of its life and my next truck’s life.
Brandon H.
I've heard good things from a lot of a different "truck-fluencers" as I like to call them, so since I own a diesel, I had to see what all the hype was about. The items I ordered shipped fast and seem to be great quality. Also love the fact that they sent 4 nice stickers along with it!
John C.
I use the filters and oil kits to service my fleet of trucks (4). I own a landscaping company and we are hard on our trucks, and it’s nice to have a convenient way to buy the correct amount of oil and all filters in one place.
Kameron C.
It was amazing. Everything was easy to use and very helpful having everything in one package.
Anthony M.
Easy to order, had a question got a call back very quickly and product was very nice stuff! Definitely will continue ordering my oil changes through docs 🤙
Dakotah W.