VALVE COVER GASKET FOR NHC 250 CUMMINS ENGINES FOUND IN M809, M939, AND M939A1 MODELS. 

3 GASKETS REQUIRED PER ENGINE.

NOT FOR M939A2 WITH CUMMINS TURBO ENGINE. 

PART # 3054841 NSN 5330-01-285-4827, 5330012854827, 3009999, 10004800