Mopar Oil & Fuel Filter Combo Set MO-291, 6.7L Cummins
Mopar Oil & Fuel Filter Set MO-291 Combo is a genuine OEM maintenance kit for RAM trucks equipped with the 6.7L Cummins diesel engine, pairing Mopar's factory-specification engine oil filter with the correct fuel filter in one convenient combo for a full scheduled service.
Using genuine Mopar filters on a Cummins diesel matters more than on many gasoline engines: diesel fuel systems run at extremely high injection pressures, and even minor contamination or an improperly-speced fuel filter can lead to premature injector wear or failure. Mopar filters are manufactured to the exact specifications RAM and Cummins engineered the engine around, unlike many generic aftermarket alternatives that may only approximate the fit and filtration micron rating.
This combo pack is designed to simplify a scheduled maintenance interval by bundling both required filters together, saving a separate parts lookup and reducing the chance of installing a mismatched filter.
Fitment: RAM trucks with the 6.7L Cummins diesel engine. Always verify exact fitment against your specific truck's model year and VIN before ordering, as filter part numbers can vary by production date even within the same generation.