Interstate McBee - Cummins L10, M11, ISM & QSM Upper Engine Gasket Set - M-4089478

The Interstate-McBee Upper Engine Gasket Set (M-4089478) is built for Cummins® L10, M11, ISM, and QSM applications. Whether you're servicing legacy L10/M11 engines or later-model ISM/QSM engines with electronic controls, this comprehensive kit provides all the upper-end gaskets and seals needed for a professional rebuild. Trusted for reliability, this set ensures long-lasting sealing performance and meets OEM-grade quality standards.

Key Features:

• Designed for Cummins® L10, M11, ISM, and QSM engines

• Includes cylinder head gasket, rocker cover gasket, O-rings, exhaust manifold gaskets, and more

• Supports both mechanical and electronic engine variants

• OEM-quality components ensure durability and performance

• Ideal for commercial truck, construction, and agricultural applications

Engine Compatibility:
Cummins® L10, M11, ISM, QSM

Kit Includes (BOM Parts List):

• M-3040817 – O-Ring Seal (1)

• M-3328948 – Exhaust Manifold Gasket (6)

• M-3819871 – O-Ring Seal (1)

• M-3819900 – Turbocharger Gasket (1)

• M-3820872 – Cover Plate Gasket (1)

• M-3867043 – O-Ring Seal (19)

• M-3883220 – Rocker Cover Gasket (1)

• M-3899343 – Turbocharger Drain Gasket (1)

• M-3922794 – Turbocharger House O-Ring Seal (2)

• M-3042401 – Seal (1)

• M-4022907 – Screw (3)

• M-3678912 – O-Ring Seal (1)

• M-3037537 – Turbocharger Oil Inlet O-Ring Seal (1)

• M-3102361 – Gasket (1)

• M-3069786 – Gasket (1)

• M-3102802 – O-Ring Seal (1)

• M-3163713 – O-Ring Seal (1)

• M-3163714 – O-Ring Seal (1)

• M-3163715 – O-Ring Seal (2)

• M-3627695 – O-Ring Seal (2)

• M-3678786 – O-Ring Seal (2)

• M-3070136 – Top O-Ring Seal (6)

• M-3755843 – Turbocharger Gasket (1)

• M-3050867 – Grommet (6)

• M-4973102 – Rocker Lever Housing Gasket (1)

• M-2864080 – Cylinder Head Gasket (1)

• M-3070137 – Mid O-Ring Seal (6)

• M-3070138 – Bottom O-Ring Seal (6)

• M-3088984 – Turbocharger Mounting Gasket (1)

• M-3328328 – Washer (7)

• M-3328464 – Ring Seal (2)

• M-3104230 – Gasket (1)

• M-3049221 – Water Tube O-Ring Seal (4)

• M-5266422 – Exhaust Manifold Gasket (2)

⚠️ Opened packages are not eligible for return.