Interstate-McBee MCB59000 Fuel Injector Seal/Install Kit – 89–98 5.9L Cummins 12V

Restore proper sealing on your 5.9L Cummins 12-valve (1989–1998) with this OEM-style Interstate-McBee MCB59000 injector seal/installation kit. Built to factory dimensions for reliable fit and long service life on B-series applications.

• Direct-fit, OEM-style: Designed to meet factory specs for dependable reseal results.
• Complete reseal solution: Includes the common injector sealing items typically required during injector service on 12-valve engines.
• Aftermarket value: Interstate-McBee quality at a fraction of OEM-boxed pricing.

Specifications

Vehicle Fitment

Always verify by engine serial number and nozzle size.

• Dodge Ram 2500/3500 5.9L Cummins 12-Valve:
  • 1989–1998 model years overall
  • Confirmed fit: 1991.5–1998 intercooled trucks with 7 mm injector nozzles
  • Does not fit: Non-intercooled trucks using 9 mm nozzles (typically early 1989–1991)

What’s Included

Injector sealing components typically required to service all six injectors on a 5.9L 12-valve Cummins (dust/dowel seals, copper chamber/tip washers, and related seals as called for during install).

Install Notes

• Confirm 7 mm vs 9 mm nozzle size before ordering; parts are not interchangeable.
• Clean bores and sealing surfaces thoroughly; replace any damaged hardware.
• Torque lines and hold-downs to factory specs; follow Cummins service procedures.

Why Buy From CPP Diesel

• Diesel-focused catalog with tech-backed fitment support
• Fast shipping and easy returns
• Pro tips for reliable 12-valve reseals

FAQ