Interstate McBee - Cummins B/ISB/QSB Upper Engine Gasket Set - M-4376090

The Interstate-McBee Upper Engine Gasket Set (M-4376090) is designed to provide superior sealing for Cummins® B/ISB/QSB engine applications. This complete kit includes the gaskets and seals required for upper engine service and helps ensure long-lasting engine integrity in demanding environments. Built to OEM standards and backed by a trusted warranty, it's the ideal choice for diesel engine maintenance and rebuilds.

Key Features:

• Designed for Cummins® B/ISB/QSB applications

• Includes essential gaskets and seals: cylinder head gasket, valve cover gasket, EGR valve gaskets, and more

• Manufactured to OEM specifications for quality and durability

• Suitable for both on-highway and off-highway engine maintenance

Engine Compatibility:
Cummins® B/ISB/QSB Upper Engine Applications

Kit Includes (BOM Parts List):

• M-2830977 – O-Ring Seal (1)

• M-3058653 – O-Ring Seal (4)

• M-3910517 – Coolant O-Ring Seal (1)

• M-3947530 – Intake Manifold Cover Gasket (1)

• M-3954829 – Thermostat Seal (1)

• M-3963379 – Rocker Housing Cover Gasket (1)

• M-3963988 – Sealing Washer (5)

• M-3963990 – Sealing Washer (5)

• M-3973512 – O-Ring Seal (1)

• M-3977393 – O-Ring Seal (6)

• M-3978072 – Connection Gasket (1)

• M-3979769 – EGR Valve Gasket (1)

• M-3999820 – Breather Gasket (1)

• M-4076823 – Rectangular Ring Seal (2)

• M-4891288 – Turbocharger Oil Drain Gasket (1)

• M-4932210 – Cylinder Head Gasket (1)

• M-4932615 – EGR Transfer Tube Gasket (2)

• M-3955393 – Valve Stem Seal (24)

• M-4992509 – O-Ring Seal (1)

• M-5253019 – EGR Valve Gasket (1)

• M-5264568 – Oil Drain Gasket (1)

• M-5264950 – Valve Cover Gasket (1)

• M-5266419 – Turbocharger Mounting Gasket (1)

• M-5266422 – Exhaust Manifold Gasket (6)

• M-3963824 – Rectangular Ring Seal (1)

• M-4062328 – O-Ring Seal (6)

• M-3883284 – O-Ring Seal (1)

⚠️ Opened packages are not eligible for return.