Interstate-McBee M-4090035 Upper Engine Gasket Set – 98.5–02 5.9L Cummins

OEM-style upper engine gasket set from Interstate-McBee—designed for 1998.5–2002 Dodge Ram 5.9L Cummins 24-valve (ISB) engines. Includes essential head, valve cover, and related gaskets for a reliable upper-end rebuild or repair.

• Complete upper gasket kit: Includes head gasket(s), valve cover seal(s), and key interface seals.
• OEM-thickness precision cut: Matches Cummins 4090035 specifications exactly for proper sealing.
• Durable materials: Designed for high heat and pressure environments typical of heavy-duty diesels.
• Aftermarket value: High-quality solution with substantial savings versus OEM Cummins parts.

Specifications

Vehicle Fitment

Verify fitment with engine serial number (ESN) when possible.

• Dodge Ram 2500/3500 5.9L Cummins (24-Valve ISB)
  • Production Years: Late 1998 (98.5) through 2002
• Notes: Ideal for upper-end repairs, cylinder head replacements, or valve cover leak corrections on 24V ISB engines from 1998.5–2002.

Installation Tips

• Clean all mating surfaces thoroughly—remove old gasket and sealant.
• Use Cummins service manual for head bolt torque sequence and specs to ensure proper sealing.
• Replace head bolts and hardware as recommended by Cummins for head gasket replacement.

Warranty

Interstate-McBee engine rebuild parts include manufacturer warranty coverage (typically 1–2 years). Please consult warranty terms or contact us to confirm coverage for this upper gasket set.

Cross-Reference

Matches Cummins OEM part 4090035. Intended for use in upper-end rebuilds and valve cover servicing on 1998.5–2002 Cummins 5.9L 24-valve engines. Confirm compatibility via ESN.

Why Buy From CPP Diesel

• Curated, quality-tested diesel parts inventory.
• Fast dispatch and easy returns.
• Tech support available to confirm fitment by ESN.

FAQ