It seals the connection between the turbocharger and the exhaust manifold/flange.
Compatible engines: Cummins L10, M11, ISM, and QSM.
Cummins also notes that this product is primarily intended for use with certain uncertified 14-liter N14 engines; exact compatibility should be verified with ESN/CPL.
Installed in the cylinder head; it keeps the valve stem aligned during opening and closing. This applies especially to non-certified 10-liter versions.
It is also sold for M11 and ISM applications, but for these motors, it is recommended to check the ESN serial number.
Some catalogs list it for intake valves; other aftermarket catalogs describe it as suitable for both intake and exhaust. The correct installation position must therefore be confirmed via CPL/ESN.