Interstate-McBee M-4089649 Upper Engine Gasket Set – 89–98 5.9L Cummins

OEM-style upper engine gasket set from Interstate-McBee, designed for 1989–1998 Dodge Ram 5.9L Cummins 12-valve engines. Complete upper-end sealing solution—precision-cut, durable, and cost-effective for valve cover, rocker, and cylinder head seals.

• Comprehensive upper rebuild kit: Includes all upper gaskets and seals for valve cover, rocker box, and head.
• OEM-fit precision: Matches Cummins 4089649 original specifications for fit and function.
• Built to last: Quality materials and tight tolerances, ensuring reliable sealing under high heat and pressure.
• Strong aftermarket value: High-quality replacement at substantial savings compared to genuine Cummins parts.

Specifications

Vehicle Fitment

Always verify compatibility using engine serial number (ESN) when available.

• Dodge Ram 2500/3500 5.9L Cummins (12-Valve B-Series):
  • Production Years: 1989 through 1998
• Industrial Platforms: B-Series non-high-pressure (e.g., 4BT) in some applications—confirm via ESN.

Installation Tips

• Clean mating surfaces thoroughly to ensure proper sealing—remove old gasket material fully.
• Use new torque-to-yield hardware where required and follow Cummins service manual torque sequences.
• Apply manufacturer-specified sealant only if directed in the service manual.

Warranty

Interstate-McBee engine rebuild parts include manufacturer warranty—typically 1 to 2 years. Please consult documentation or reach out for specifics.

Cross-Reference

Equivalent to Cummins 4089649. Ideal for upper-end engine rebuilds on 1989–1998 B-Series 12-valve 5.9L Cummins.

Why Buy From CPP Diesel

• Specialized diesel parts inventory with ESN-based fitment advice.
• Rapid shipping and hassle-free returns.
• Technical support from diesel experts to ensure proper fitment.

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