DOC'S Diesel Ram 6.7L Cummins Fuel/Water Separator Filter 2019-2022 | Replaces 68436631AA | OEM Grade

Overview: keep fuel clean, protect your Ram 6.7L Cummins

Diesel engines rely on clean fuel to perform reliably. DOC'S Diesel Fuel/Water Separator is designed to remove visible water and trap fine contaminants before they reach vital components like the pump and injectors. By supporting steady fuel flow and stable pressure, this separator helps you experience smoother starts, steadier acceleration, and consistent performance across daily driving and tougher tasks.

Construction focuses on maximizing filtration media surface area, ensuring efficient filtration without overly restricting fuel flow. The result is filtration you can depend on, with easy installation and a streamlined path from fuel tank to engine. While every vehicle is unique, you may notice more consistent throttle response and a more predictable fueling experience in challenging conditions.

Key benefits and capabilities

• Interchange compatibility that includes Mopar 68436631AA and additional brand equivalents for flexible replacement
• 3 micron filtration with third party testing at 96.92 percent efficiency for fine particle capture
• OEM grade construction with necessary o rings included for a proper seal
• Designed fitment for 2019-2024 Ram 6.7L Cummins models, covering 2500, 3500, 4500 and 5502

Real world use cases

• In dusty or rugged environments, the separator helps protect the fuel system from water intrusion and particulate matter
• During towing or heavy workloads, stable fuel flow can support smoother acceleration and dependable performance
• On long highway drives, consistent filtration may contribute to reliable starts and steady engine operation

Interchange and fitment

This unit replaces Mopar 68436631AA and is compatible with 2019-2024 Ram 6.7L Cummins diesel trucks, including 2500, 3500, 4500 and 5502 configurations. It ships with o rings as needed to simplify installation for common Ram setups.

Usage guidance and maintenance

Always follow your vehicle manufacturer warranty and service guidelines. As a general rule, replace with every 5 000 to 10 000 miles, or up to a 15 000 mile maximum, depending on driver conditions and fuel quality.

Quality and testing

DOC S fuel water separators are designed to deliver reliable filtration performance with an emphasis on filtration media surface area. Third party testing confirms a 3 micron efficiency rate of 96.92 percent, offering protection against fine contaminants under real driving conditions.