

FOR THE DADS WHO NEVER STOP WORKING
FOR THE DADS WHO
NEVER STOP WORKING
his truck running strong.
The One Kit That Does It All
RUNS LIKE NEW — DAD APPROVED ADDITIVE KIT | NOW $39.99
Three of Doc's Diesel's most-used treatments, bundled into one Father's Day deal. Designed to help clean injectors, protect the DEF system, and keep the fuel system running cleaner mile after mile.
What's Included
- 24/7 Diesel Treatment + Cetane Boost — smoother performance, cleaner injectors, better fuel lubrication
- DEF Guard — helps prevent crystallization and DEF system buildup
- DPF + Injector Fuel Flush — cleans deposits, supports DPF efficiency
Works with Ram Cummins · Ford Power Stroke · Chevy/GMC Duramax · Jeep & Ram EcoDiesel
Filters + Maintenance Kits
10% off every filter, combo kit, and oil change bundle — stock up while it lasts.
Doc's Diesel
Dodge RAM 6.7L Cummins Filter Maintenance Kit 2019-2024
Replaces 68436631AA, 68157291AA, 05083285AA, 53034051AB
Doc's Diesel
Dodge RAM 6.7L Cummins Filter Set 2019-2024
Replaces 68436631AA, 68157291AA, 05083285AA
Doc's Diesel
Dodge RAM 6.7L Cummins Filter Maintenance Kit 2013-2018
Replaces 68197867AA, 68157291AA, 05083285AA, 53034051AB
Doc's Diesel
Dodge RAM 6.7L Cummins Filter Set 2013-2018
Replaces 68197867AA, 68157291AA, 05083285AA
Doc's Diesel
Dodge RAM 6.7L Cummins Filter Combo Kit 2019-2024
Replaces 68157291AA, 68436631AA, 05083285AA, 53034051AB
Doc's Diesel
Dodge RAM 6.7L Cummins Filter Combo Kit 2013-2018
Replaces 68197867AA, 68157291AA, 05083285AA, 53034051AB
PERFORMANCE AND HEAVY-DUTY BRAKES
Save up to $46 on pads, rotors, and complete brake kits built for trucks that haul weight.
Doc's Diesel
RAM 6.7L Cummins 2500/3500 Ceramic Front Brake Pads + Drilled and Slotted Front Rotors Kit 2019-2024
Doc's Diesel
Ford 6.7L Powerstroke Ceramic Front Brake Pads 2012-2024 F250, 2013-2024 F350, 2013-2016 F450
Doc's Diesel
Chevrolet/GMC 6.6L Duramax 2500HD/3500HD SRW/DRW Drilled and Slotted Front Rotor Set 2011-2025
Doc's Diesel
RAM 6.7L Cummins 2500/3500 Ceramic Front Brake Pads + Drilled and Slotted Front Rotors Kit 2009-2018
Doc's Diesel
Doc's Diesel
RAM 6.7L/5.9L Cummins 2500/3500 SRW Drilled and Slotted Front/Rear Rotors Kit 2009-2024
Oils, Additives & Fluids
Up to 10% off diesel oil, additives, and fluids — save on every gallon and treatment you stock up on.
Hub Assemblies
Up to 10% off diesel oil, additives, and fluids — save on every gallon and treatment you stock up on.
Doc's Diesel
Chevrolet/GMC 6.6L Duramax 4WD Premium E-Coated Front Wheel Hub Assemblies Kit 2020-2025
Replaces 515208
Doc's Diesel
Chevrolet/GMC 6.6L Duramax RWD Premium E-Coated Front Wheel Hub Assemblies Kit 2020-2025
Replaces 515209
Doc's Diesel
Chevrolet/GMC 3.0L Duramax RWD Premium E-Coated Front Wheel Hub Assemblies Kit 2019-2024
Replaces 515198
Doc's Diesel
Chevrolet/GMC 3.0L Duramax 4WD Premium E-Coated Front Wheel Hub Assemblies Kit 2021-2025
Replaces 515197
Doc's Diesel
Ford 6.7L Powerstroke RWD Premium E-Coated Front Wheel Hub Assemblies Kit 2017-2024
Replaces 515191
Doc's Diesel
Ford 6.7L Powerstroke SRW 4WD Premium E-Coated Front Wheel Hub Assemblies Kit 2017-2019
Replaces 515183
Doc's Diesel
Ford 6.7L Powerstroke 4WD/DRW Premium E-Coated Front Wheel Hub Assemblies Kit 2017-2019
Replaces 515182
Doc's Diesel
Nissan Titan XD 5.0L Cummins RWD Premium E-Coated Front Wheel Hub Assemblies Kit 2016-2019
Replaces 515172
Doc's Diesel
Nissan Titan XD 5.0L Cummins 4WD Premium E-Coated Front Wheel Hub Assemblies Kit 2016-2019
Replaces 515171
Doc's Diesel
RAM 6.7L Cummins 2WD Premium E-Coated Front Wheel Hub Assemblies Kit 2012-2013 2500, 2012 3500
Replaces 515154
Dad's truck sees long hauls, heavy loads, and early mornings. Everything we sell, we stand behind — because a truck that breaks down isn't an option.
DON'T TAKE OUR WORD FOR IT.
These are real customers. Real trucks. Real miles.
“2014 F-250 4x4. 255k miles! This is my 3rd round with DOC's, quick shipment, reasonably priced and the filters work awesome! Highly recommend and will buy again!!”
“Overall, this is an excellent product. Along with the rest of their kit. Best price anywhere along with great care and quality shipping of products. OEM or better fitment. Couldn't ask for anything better.”
“I bought one just to give them a try and then forgot to change it. It lasted so much longer than the recommended mileage before I had any issue that I went ahead and have one automatically sent to my house as needed so I remember to change it on time.”
“Docs is my go to. I have been a customer for several years now. Products are always spot on and high quality. Will be a customer as long as I own a Diesel Truck. Keep up the great work Docs!”
“Absolutely love this kit from Doc's. Aside from affordability its quality is up there. 100% will buy again. I highly recommend their brakes too. I'm still blown away at the change from install nearly a month ago.”
“Really affordable price but with identical rating and specs on the filters. I've been running docs fuel and oil filters for about 40k miles now and no issues what so ever. I used to work as a technician for Ford Dealership and can personally say the quality and craftsmanship is really good. I highly recommend.”
Skip the last-minute panic.
Deals are live now, plus free shipping over $99.
ENTER YOUR VEHICLE. WE'LL DO THE REST.