Doc's Diesel 6.7L Cummins Filter Set for RAM 2500/3500/4500 (2013-2018) — OEM-quality fuel, water separator & oil filter

Doc's Diesel Filter Set is a complete OEM-quality replacement kit (fuel filters, water separator, and oil filter) designed to fit 6.7L Cummins engines in 2013–2018 RAM 2500, 3500, and 4500 trucks.

Keeping a diesel truck performing reliably starts with fresh filtration. This kit from Doc's Diesel bundles the key filters you need when servicing a 6.7L Cummins on RAM 2500/3500/4500 models built between 2013 and 2018. Each component is manufactured to meet or exceed Dodge's warranty requirements, giving you the fit and filtration characteristics intended for these trucks.

Will this filter set fit my RAM 2500/3500/4500 with the 6.7L Cummins?

Yes — the set is specified for 6.7L Cummins engines in RAM 2500, 3500, and 4500 models from 2013 through 2018. Compatibility covers common factory configurations for those model years, including vehicles with stock fuel and oil system layouts.

• Designed to match OEM filter dimensions and thread patterns
• Includes both fuel filters and a water separator used on these engines
• Oil filter supplied for correct bypass and capacity for 6.7L Cummins

How do these filters affect engine maintenance and reliability?

Replacing worn filters prevents contamination from reaching sensitive components like the high-pressure fuel pump and injectors. Using filters that meet OEM specifications helps preserve engine performance, reduces wear, and supports factory warranty conditions when applicable.

• Removes particulates, water, and contaminants from fuel systems
• Maintains oil cleanliness to protect bearings and turbochargers
• Simplifies scheduled service with a single matched kit

What exactly comes in the Doc's Diesel Filter Set and why each piece matters?

The kit contains the primary fuel filter(s), a water separator for the diesel supply, and the compatible oil filter for the 6.7L Cummins. Each item targets a specific contamination source so the engine receives clean fuel and oil under all operating conditions.

• Fuel filter(s) capture soot, dirt, and fine particulates before fuel injection
• Water separator prevents free water from entering fuel lines and injectors
• Oil filter removes metal particles and combustion byproducts to protect moving parts

How easy is installation and what should I prepare?

Installation uses the same mounting points and connections as the original filters, so most professional shops and experienced DIYers can complete the job with standard tools. Follow vehicle service intervals and torque specifications for a safe, leak-free installation.

• No aftermarket modification required — direct-fit replacement parts
• Recommended to replace filters during routine oil and fuel system service
• Keep new O-rings, proper oil for priming, and disposal plan for used filters

Who this set is for: Owners and technicians who service 2013–2018 RAM 2500, 3500, and 4500 trucks with the 6.7L Cummins and want a single, OEM-quality filter package that meets Dodge’s warranty criteria. It’s ideal for fleet maintenance, performance-minded owners prioritizing filtration, and anyone preparing a truck for long trips or heavy duty work who prefers matched components from a single supplier.