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.
The oil pan gasket seals the joint between the engine block and the oil pan; this is the narrow “early/narrow pan” version, typically with 34 holes.
Primary application for mechanical, non-certified L10 motors with a narrow housing. Some aftermarket catalogs also list it for certain M11 and ISM configurations, but it is not universal for all of these motors.
You must verify the housing type and the motor’s serial number before purchase.