Interstate McBee - Cummins ISB Upper Engine Gasket Set - M-4089648

The Interstate-McBee Upper Engine Gasket Set (M-4089648) is designed for Cummins® B4.5 engine platforms, providing a complete selection of gaskets and seals needed for upper-end service. Whether you're rebuilding or performing preventative maintenance, this OEM-quality set ensures reliable performance and leak prevention in demanding environments.

Key Features:

• Replacement upper engine gasket set for Cummins® B4.5 engines

• Complete kit with cylinder head gasket, intake/exhaust manifold gaskets, injector seals, valve cover gaskets, and more

• Meets or exceeds OEM quality standards for fit and durability

• Ideal for use in agriculture, construction, and light- to mid-duty equipment

Engine Compatibility:
Cummins® B/ISB/QSB – B4.5

Kit Includes (BOM Parts List):

• M-3283333 – Cylinder Head Gasket (1)

• M-3918188 – Washer (2)

• M-3919358 – Injector Sleeve (4)

• M-3923261 – Injector Seal (4)

• M-3923331 – Thermostat Seal (1)

• M-3927154 – Exhaust Manifold Gasket (4)

• M-3930906 – Valve Cover Gasket (4)

• M-3935449 – Noise Isolator (4)

• M-3936876 – Rectangular Ring Seal (1)

• M-3937142 – Injector Seal (4)

• M-3900808 – Washer (4)

• M-3937706 – Gasket – Turbo Oil Drain (1)

• M-3938153 – Intake Manifold Gasket (1)

• M-3957912 – Valve Stem Seal (8)

• M-3901356 – Gasket (1)

• M-3902425 – Sealing Washer (1)

• M-3903380 – Banjo Seal (4)

• M-3906694 – Rectangular Ring Seal (1)

• M-3906773 – Washer (1)

• M-3910824 – Rocker Cover Bolt Seal (4)

• M-3912220 – Metal Gasket (1)

• M-5264569 – Oil Drain Gasket (1)

⚠️ Opened packages are not eligible for return.