Please See listing for Cummins Fleetguard AF25550, this is the same filter, fleetguard is Cummins filtration division.

Cummins Onan Generator Air Filter - 140-3071/ AF25550

Green Label Parts air filters are designed with a special foam pre-cleaner, for use specifically in Cummins Onan RV Generators. Other manufacturers' air filters may contain a lighter density filter paper and the sealing surfaces may get brittle and crack over time, allowing dirty air into the engine intake system. Over time, it only takes about a thimbleful of dirt to wear out piston rings and cylinders. Please refer to your Operators Manual for specific maintenance intervals.

Fits Onan Generator Models: HDKCA/CB (Spec A-F), HQDPB (Spec A-C), HQDPB (Spec B), HDCAA/AB (Spec A-D)