Cost, Risk, and Reliability Considerations When Choosing Between Filter and Housing Replacement
Deciding whether to replace only the fuel filter or the entire fuel filter housing on a 5.9 Cummins engine involves more than symptom diagnosis—it also requires evaluating cost and long-term reliability.
Fuel filters are routine maintenance items and relatively inexpensive. Replacing them at recommended intervals minimizes injector wear and fuel system damage.
Fuel filter housing...