Two filters.
In a 2022 Ram heavy‑duty pickup with the 6.7‑liter Cummins diesel, the fuel system uses a two‑filter filtration setup: a primary water‑separator filter and a secondary fuel filter element housed together in the fuel filter assembly. This configuration helps keep water out of the fuel and protects the high‑pressure fuel system.
The two fuel filters at a glance
The filtration arrangement on this engine consists of two stages. Here’s what each does:
- Primary filter with water separator: removes free water and larger particulates from incoming fuel.
- Secondary filter: finer filtration to protect injectors and the high‑pressure fuel system.
These two elements work in tandem to maintain fuel quality and prevent contaminants from reaching the injectors.
Location and maintenance basics
The fuel filter housing is typically located on the engine, often on the driver’s side near the firewall, and the two filter elements are replaced together during service. For exact replacement intervals and procedures, refer to the owner's manual, as recommendations can vary by usage and fuel quality.
Summary
The 2022 6.7 Cummins has two fuel filters — a primary water‑separator filter and a secondary fuel filter — within a single housing, providing two‑stage filtration to protect the engine’s fuel system. Regular replacement per the manual keeps the system running clean and efficient.