Interstate-McBee M-3935878 Valve Cover Gasket – 98.5–02 5.9L Cummins 24V

Restore a proper seal on your 1998.5–2002 Dodge Ram 2500/3500 5.9L Cummins 24-valve with this Interstate-McBee M-3935878 valve cover gasket. Built as an OEM-style aftermarket replacement, it installs in the factory location to help stop oil leaks and keep your engine bay clean.

• OEM-style fit: Direct replacement for Cummins 3935878 (see cross-refs).
• Durable molded elastomer: Designed to maintain clamp load and sealing integrity.
• Leak control: Helps prevent oil seepage around the rocker/valve cover perimeter.
• Aftermarket value: Quality and fit without OEM pricing.

Specifications

Vehicle Fitment

Always verify by Engine Serial Number (ESN) for edge cases.

• Dodge Ram 2500/3500, 5.9L Cummins ISB 24V
  • 1998.5–2002 model years

Recommended Add-Ons

• Valve cover bolts (Cummins 3946168) – replace if corroded or stretched.
• Valve cover bolt washers (Cummins 3942659) – inspect/replace as needed.

Install Notes

• Remove old gasket material and clean mating surfaces thoroughly.
• Inspect valve cover for warpage; replace damaged hardware.
• Follow Cummins service manual for torque sequence and specifications.

Warranty

Interstate-McBee new-part warranty applies. For coverage details and terms, contact us or refer to the manufacturer’s policy.

Cross-Reference & Compatibility

Direct replacement for Cummins 3935878; also cross-references Mopar 5016356AB. Fits 5.9L ISB 24V B-Series applications listed above.

Why Buy From CPP Diesel

• Fitment-first support and ESN verification.
• Fast shipping and easy returns.
• Curated Cummins B-Series parts that work together.

FAQ