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No gimmicks. No fluff. Just a chance to park a brand-new 2025 Ram 2500 6.7L Cummins in your driveway. Enter for your chance to win today!
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ARE YOU READY FOR THIS?

ENTER FOR A CHANCE
TO WIN THIS TRUCK!

No gimmicks. No fluff. Just a chance to
park a brand-new 2025 Ram 2500 6.7L
Cummins in your driveway. Enter for
your chance to win today!
Every $1 Spent = 1 Entry!
TELL ME MORE

FITMENT GUARANTEED

 • 

FREE USA SHIPPING OVER $99

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MAINTENANCE MADE EASY

 • 

3RD-PARTY TESTED

 • 

Keep your diesel running smoothly.
MAINTENANCE KITS
Everything you need, all in one convenient kit.
SHOP KITS
Built for the Long Haul
HEAVY-DUTY BRAKING, ZERO COMPROMISE
From mountain passes to job sites, Doc's brake kits deliver relentless stopping strength where it counts most.
SHOP BRAKES

FIND THE PARTS YOUR TRUCK NEEDS

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CLEAR FILTERS

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Doc's Dodge RAM 6.7L Cummins Filter Maintenance Kit 2019-2025 Doc's Diesel Dodge RAM 6.7L Cummins Filter Maintenance Kit 2019-2024

Doc's Diesel

Dodge RAM 6.7L Cummins Filter Maintenance Kit 2019-2024

Replaces 68436631AA, 68157291AA, 05083285AA, 53034051AB

$139.99
140 entries 1x
Doc's Diesel Dodge RAM 6.7L Cummins 68RFE Transmission Service Kit 2007.5-2024 (4WD) Doc's Diesel DOC'S Ram 6.7L Cummins 68RFE Transmission Filter Kit 2007.5-2023 | Replaces 5013470AC

Doc's Diesel

Dodge RAM 6.7L Cummins 68RFE Transmission Service Kit 2007.5-2024 (4WD)

Replaces 5013470AC

$177.99
178 entries 1x
Doc's Diesel Dodge RAM 6.7L Cummins Crankcase CCV Filter 2007.5-2024 | Replaces Mopar CV52001 Doc's Diesel Dodge RAM 6.7L Cummins Crankcase CCV Filter 2007.5-2024 | Replaces Mopar CV52001

Doc's Diesel

Dodge RAM 6.7L Cummins CCV Filter 2007.5-2025

Replaces CV52001

$69.99
70 entries 1x
Doc's Diesel Ford 6.7L Powerstroke Filter Combo Kit 2020-2024 Doc's Diesel Ford 6.7L Powerstroke Filter Combo Kit 2020-2024

Doc's Diesel

Ford 6.7L Powerstroke Filter Combo Kit 2020-2025

Replaces D4625, FL2051, FA2031, FP79

$117.99
118 entries 1x
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Cummins

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WHY DOC'S?

If maintaining your truck’s peak performance is your priority, you’ve come to the right place. Doc’s Diesel is your one-stop online shop for diesel filter maintenance. Genuine quality, 3rd-party tested filters at a great price.

MAINTENANCE KITS

We save you time and money by including everything you need in one package - no more hunting for separate parts.

OEM PERFORMANCE

Our aftermarket replacements filters meet or exceed OEM Requirements.

FITMENT GUARANTEED

If it doesn't fit, we will offer you a replacement or a refund (*some conditions apply).

EXPLORE PRODUCT TYPES

BRAKE PADS & ROTORS

BRAKE PADS & ROTORS

Doc's NEW Brake Pads & Rotors deliver powerful, quiet, and reliable braking for heavy-duty diesel trucks—even in the toughest conditions.
COMPLETE FILTER KITS

Complete Filter Kits

Save time and money with Doc's Filter Kits. All the filters you need in one place - no more hunting for separate filters.
TRANSMISSION FILTERS

Transmission Filters

Doc's Transmission Filters trap impurities in the fluid, ensuring smooth gear shifts and preventing expensive repairs. 
FUEL FILTERS

Fuel Filters

Doc's premium replacement Fuel Filters remove contaminants from the fuel before they reach the engine to help prevent engine damage.
FUEL/WATER SEPARATORS

Fuel/Water Separators

Doc's Fuel/Water Separators use high-grade filter media for maximum filtration and minimal flow restriction.
OIL FILTERS

Oil Filters

Doc's Oil Filters promote optimal engine health, reduced friction, and enhanced fuel efficiency.
OIL/ADDITIVES

Oil/Additives

Doc's collection of premium oils, fluids, and other additives + treatments are designed to keep your car running smoothly and efficiently.
Air Filters Collection Image
ENGINE AIR FILTERS

Engine Air Filters

Doc's Engine Air Filters protect against debris and minimize engine wear, ensuring sustained performance.
cabin air filter
CABIN AIR FILTERS

Cabin Air Filters

Doc's Cabin Air Filters ensure enhanced air quality and promote high airflow.
HOODIES, HATS, & MORE

Hoodies, Hats, & More

Our Doc's Diesel apparel and merch is designed for comfort and durability.

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.

SEE TEST RESULTS

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.

SEE TEST RESULTS
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Heavy duty filter body to withstand more than five times normal oil pressure.

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2

Heat treated steel coil compression spring to hold all components in place.

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Pressure relief valve to ensure positive engine lubrication.

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4

Traditional metal end caps on filter cartridges.

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One-piece spiral wound corrugated center tube to maximize collapse strength.

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Synthetic blend media selected to maximize efficiency and minimize resistance.

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Anti-drainback valve to prevent dry starts.

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Heavy duty base plate with precision forged threads.

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Lathe-cut nitrile sealing gasket for maximum sealing power in all conditions.

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Synthetic blend media selected to maximize efficiency and minimize resistance.

USED BY THE BEST

Over 350,000+ Happy Customers

Docs Diesel Filter Housing
Five-Stars Review

"Absolutely the best place to get great deals AND packages designed to provide EVERYTHING you need to complete the job!"

Melanie Customer verified badge VERIFIED BUYER

Docs Diesel Parts
Five-Stars Review

I was thinking about buying this for too long, bought it and I love it. fits perfect, and it’s super soft. I’ve also bought filters from them and they have amazing products over all and shipping is on point.

John Customer verified badge VERIFIED BUYER

Docs Diesel Filter
Five-Stars Review

First time customer, but Doc’s will be my go to from now on. Filters were excellent quality and fit like OEM.

Alex Customer verified badge VERIFIED BUYER

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SMALL TOWN ROOTS, BIG DREAMS

Owned and operated in small-town Ohio with a history for aftermarket automotive parts.

ABOUT DOC's