This Hastings Filters AF2243 air filter is a premium replacement part for Detroit Diesel Series 50 engines. It is designed to provide superior air filtration for efficient engine performance. The filter is manufactured in the United States and is compatible with a range of manufacturer part numbers including WIX 46744, Napa 6744, Luber-Finer LAF4498, John Deere F044979, Fleetguard AF25667, Baldwin RS3517, and AC-Delco A2106C. The filter is suitable for use in bus, trucks, and other vehicles. It is an essential component for maintaining the performance of your engine. Whether you're replacing a worn-out filter or upgrading to a more reliable option, this Hastings Filters AF2243 air filter is a great choice.