Doc's Diesel Filter Combo Kit for RAM 6.7L Cummins 2019-2024

Our review of the Doc's Diesel Filter Combo Kit finds it best suited for owners and DIY technicians who want a single, ready-to-install set of replacement filters for Ram 6.7L Cummins trucks from 2019 to 2024. The bottom line: this kit removes the guesswork and parts hunting by bundling the fuel/water separator, fuel filter, oil filter and engine air filter that match common OEM interchanges, so routine maintenance is faster and less likely to be delayed. For anyone who values correct fitment, tested filtration efficiency, and clear replacement guidance, this combo is a practical time saver.

Key Features

• Complete kit: Includes a fuel/water separator, fuel filter, oil filter and engine air filter so owners can complete a standard service in one trip.
• Vehicle fitment: Designed for Ram 6.7L Cummins 2500, 3500, 4500 and 5500 model years 2019-2024 to reduce fitment guesswork.
• OEM interchange listings: Replaces common Mopar and aftermarket part numbers so installers can verify compatibility with factory references.
• Tested filtration: Fuel/water separator and fuel filter show multi-micron efficiency ratings and the oil and air filters report high particulate capture and dust holding capacity.
• Service guidance: Includes recommended change intervals for fuel, oil and air filters to help maintain warranty and engine performance.
• Value and convenience: Bundling the four filters saves time and reduces the chance of missing a required part on service day.

Who It's For

Doc's Diesel combo is ideal for Ram 6.7L Cummins owners who perform scheduled maintenance themselves or for independent shops that want a consistent, proven set of replacement filters without sourcing each item separately. It particularly suits drivers who prefer matching replacements that cite direct interchanges to Mopar and common aftermarket alternatives.

Owners who require dealer-only parts with factory branding or those running extreme duty cycles beyond the listed replacement guidelines should evaluate whether more frequent changes or specialty filters are needed. For general fleet, owner-operator, and DIY use, this kit covers the typical maintenance needs.

Pros & Cons

Pros

• Good value for money by bundling all four filters required for routine service.
• Filters fit as advertised for 2019-2024 Ram 6.7L Cummins models, reducing installation surprises.
• Third-party testing shows high efficiency for oil and air filters and strong micron ratings for fuel filtration.
• Clear replacement intervals help owners stay within warranty and maintenance recommendations.

Cons

• Not a dealer-branded OEM kit, so buyers wanting factory-branded packaging should look elsewhere.
• Replacement intervals are general guidelines and may need to be shortened under severe use.

Specifications

Brand	Doc's Diesel
Fitment	Ram 6.7L Cummins 2500/3500/4500/5500 2019-2024
Included items	DGF401 fuel/water separator, DGF430 fuel filter, D5335 oil filter, DPA6314 engine air filter
Fuel filter efficiency	Fuel/water separator 3 micron @ 99.1% / fuel filter 3 micron @ 93.48%
Oil filter rating	25 micron @ 99% efficiency
Air filter capacity	99.25% efficiency / 344.2 g dust holding capacity
Replaces	Mopar 68157291AA, 68436631AA, 05083285AA, 53034051AB (and listed aftermarket equivalents)

Our Verdict

Doc's Diesel Filter Combo Kit is a sensible, cost-effective option for Ram 6.7L Cummins owners who want correct-fit replacement filters without hunting multiple part numbers. The included filtration ratings and OEM interchange listings make it practical for routine maintenance, and the bundled approach saves time and reduces errors. For standard driving and typical service intervals this kit represents good value and convenience.

Frequently Asked Questions

Will these filters fit my Ram 6.7L Cummins?
Yes, the kit is specified for Ram 6.7L Cummins 2500, 3500, 4500 and 5500 model years 2019-2024 and lists direct interchange part numbers for verification.

How often should I change the filters?
Recommended guidelines are fuel filter/separator every 5,000-10,000 miles (15,000 max), oil filters every 5,000-7,000 miles (10,000-15,000 max), and engine air filters every 5,000-10,000 miles (12,000 max); follow manufacturer warranty requirements.

Are the filtration efficiency claims backed by testing?
Yes, Doc's lists third-party testing numbers: the separator and fuel filter show multi-micron efficiency ratings and the oil and air filters list high particulate capture and dust holding capacity.