It is located between the cylinder head and the exhaust manifold; it prevents exhaust gases from escaping.
Cummins specifies the primary use for 10-liter L10 engines; aftermarket catalogs extend the application to the M11, ISM, and QSM families. Final compatibility should be verified using the engine’s serial number.
Seal the engine plate or cover to prevent oil leaks.
Application for Cummins Engines: L10, M11, ISM and QSM.
Since this is a flat, lightweight gasket, you should verify its shape and holes by comparing it to the removed part or by checking the serial number/CPL.