Doc’s Diesel Black Friday deals are here, and we are delivering serious savings for diesel owners who demand performance and reliability. Whether you run a Cummins, Powerstroke, or Duramax, this is your chance to stock up on the parts that keep your truck running strong. From our best-selling CCV Filters and Oil Change Kits to our reliable Brake Maintenance Kits and our new Doc’s Diesel Heavy Duty Oil, every deal is built to help you push more miles with less worry. Shop our limited-time deals now and save big on your diesel truck maintenance needs.
Oil + Filter Maintenance Kits at up to 15% Off
The Full Package for a No-Nonsense Oil Change
You've seen our all-in-one Maintenance Kits, and now you can get everything you need, PLUS top-notch engine oil for your oil changes. Doc’s oil + filter maintenance kits keep things easy. You get the exact oil your truck needs paired with the right filters and hardware, all in one box. No mismatched brands. No last-minute parts runs. Just a clean, complete setup for a reliable filter change that supports performance and long engine life. Skip the parts hunting and get back on the road faster. With fresh engine oil and new filters, you’ll reduce engine wear, improve fuel efficiency, and avoid costly repairs. These kits are built for folks who want reliable results without guesswork. Shop Duramx, Cummins, Powerstroke, RAM, and more.
Complete Maintenance Kits at 15% Off
Everything You Need Except the Oil You Already Love
Wrench smarter, not harder. Our complete maintenance kits pack all the right parts into one box so you’re not wasting time chasing down filters, seals, or O-rings. Already have your oil? No sweat, we’ve got kits that cover the rest. Changing your oil, fuel, and air filters isn’t just routine; it’s what keeps your truck running strong. Skip it, and you’re asking for clogged injectors, poor fuel mileage, or worse. These maintenance kits are built to knock out a full service without the parts store shuffle or last-minute surprises. Everything is there. Nothing’s forgotten. Just open the box, get to work, and keep your rig rolling without a hitch.
Your diesel truck works hard hauling, towing, idling, running hot, and pushing through all kinds of weather. That kind of work builds up grime and gunk fast. Staying on top of your maintenance is the difference between a reliable truck and one that’s eating up your time and money in the shop. Oil, fuel, and air filters all do a critical job. Clean oil keeps your engine lubricated and cool. A fresh fuel filter protects your injectors from trash in the tank. And a clean air filter helps your engine breathe easy, so you get full power and fuel economy. Skip one, and you could be looking at rough starts, poor mileage, or even major engine damage down the line.
That’s why our kits are a no-brainer. They’re built for diesel guys who don’t cut corners and don’t like guesswork. No forgotten seals, no digging around for that O-ring you didn’t even know you needed. Doc’s delivers a full-service maintenance checklist in one convenient box.
Brake Kits at 10% Off
Stopping Power Built for Diesel Workloads
If you drive a diesel, then you already know your brakes don’t have an easy life. Heavy trucks, big loads, hot temps, long grades…your stopping system eats all of it. That’s why Doc’s Diesel builds brake kits with brake pads and rotors made for real diesel work. Not generic parts. Not light-duty stuff. The good gear your Cummins, Powerstroke, or Duramax actually needs.
Doc’s severe-duty pads grab strong, stay consistent, and hold their bite even when you’re towing heavy. Our high-carbon rotors are built to handle serious heat without warping or fading, so your pedal feels solid no matter what you’re hauling. And if you want the full refresh, our brake pad and rotor kits make it a one-and-done upgrade. We’ve got setups built for the diesel favorites: RAM 5.9L and 6.7L Cummins, Ford 6.0L, 6.4L, and 6.7L Powerstroke, Chevy and GMC Duramax, and more. If it’s a workhorse, we’ve probably got the brakes for it.
Whether you’re towing the camper, hauling equipment, running your fleet, or just want your truck to stop like it should, Doc’s brakes deliver the stopping power diesel owners count on. They’re trusted by techs, mechanics, and everyday diesel guys who put their rigs to work. Black Friday is the time to upgrade. Grab the pads and rotors built to stop heavy trucks with confidence and lock in the best deals of the year.
Hub Assemblies at 10% Off
Built to Stand Up to Heavy Loads and Long Miles
Your hubs take a beating every time you drive. Big torque, heavy loads, rough roads, tight turns… your diesel puts real stress on the front end, and weak hub assemblies just can’t hang. That’s why Doc’s builds heavy-duty hub assemblies made for the weight and workload of Powerstroke, Cummins, and Duramax trucks.
Doc’s front hub assemblies are engineered with tight tolerances and dependable bearings so your truck steers straight and rides smoothly, whether you’re towing, hauling, or daily driving. They’re built to meet or exceed OEM standards, giving you dealership-grade quality without the dealership price. And with rear hub kits on the way this fall, you’ll be able to upgrade the whole setup soon.
Fitment is never a guessing game when you choose Doc’s Diesel. Our vehicle selection tool and Fitment Guarantee make it easy: simply plug in your year, make, and model, and you’ll see exactly what matches your truck. No trial and error, no wasted time. If you’re feeling play in the wheel, hearing grinding, or noticing sloppy steering, it’s probably your hubs talking. Swapping to Doc’s keeps your front end tight, your truck tracking straight, and your rig ready for heavy work.
Order like a pro straight from the garage. Fast shipping, real support, and parts built for diesel life. Grab your Doc’s hub assemblies today and keep your truck rolling strong.
Everyday Filters: Engine Air, Cabin Air, Fuel, Oil at up to 20% Off
The Small Parts That Make a Big Difference
Filters can be easy to ignore - out of sight, out of mind, right? While filters might not be flashy, they’re essential if you want your truck performing at its best. Doc’s Diesel carries engine air filters, cabin air filters, fuel filters, oil filters, CCV filters...if it keeps your diesel breathing clean, we stock it. Fresh filters protect your engine, improve performance, and help you avoid expensive repairs. Black Friday is the perfect time to load up with our lowest prices of the year.
Doc’s engine air filters use a tough silicone sealing gasket that stays tight even in heat and vibration, and the embossed pleated media traps a ton of dirt without choking airflow. More clean air means better fuel economy, less engine wear, and stronger performance. And yeah, they meet or beat OEM specs, so you’re not downgrading to save a buck.
CCV filters keep crankcase vapors and oil mist out of your intake so your turbo and intercooler stay cleaner, longer. They help reduce buildup, protect airflow, and keep your engine running smoother under load.
Cabin filters don’t get enough credit, but once you swap in a good one, you feel the difference. Doc’s cabin filters grab dust, pollen, and all the junk that blows in through your vents while still keeping airflow strong. The structural ribs keep the filter rigid so it doesn’t collapse, and they knock out odors to keep the cab fresh. Plus installation takes like 10 to 15 minutes behind the glove box. Easy win.
Fuel filters might be the most underrated of the bunch. Doc’s fuel filters pull out rust, dirt, and debris before they reach your injectors, and any diesel guy knows injectors are not a cheap fix. Clean fuel means better throttle response, smoother running, and more consistent power. They’re built with max media surface area and come with brackets, hoses, and clamps where needed.
And then there’s the oil filter. Doc’s oil filters run a high-flow synthetic media inside a strong metal housing, so they can take the heat and keep contaminants out of your oil. Cleaner oil means a cooler, happier engine that lasts longer. Bottom line: fresh filters keep your diesel alive. Now is the best time of the year to grab everything you need and stock the garage so your truck stays running clean, strong, and ready for whatever you throw at it.
Additives at 10% Off
Extra Protection for Hardworking Diesel Engines
Want to get the most out of every mile? If you want smoother running, better fuel quality, cleaner internals, or a little extra performance, additives get you there. Doc’s lineup of oils and additives helps reduce wear, improve lubrication, boost fuel efficiency, and fight carbon buildup. Our additives are designed for diesel trucks that work hard, whether that means towing, logging miles, or just daily driving. No matter if you're maintaining a newer truck or keeping an older rig going strong, a good additive works behind the scenes to support every mile. Deals like this only come around once a year.
Final Call to Gear Up
Don’t wait! These deals go live at midnight on 11/18 and run through Cyber Monday, 12/1. Once the sale ends, it's gone. Ready to shop? Hit the Black Friday collection, load up your cart, and get the maintenance kits, filters, brakes, hubs, and additives your truck needs with the savings you deserve while supplies last. Your truck will thank you later, and your wallet will too.
OIL + FILTER KITS
Excellent products!! I purchased an oil filter, cabin filter, and fuel filter for an '01 JLU Rubicon EcoDiesel. The products arrived packaged very nice and were a perfect replacement for the OEM products. I will definitely choose Docs Diesel for my future needs.
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