Interstate-McBee M-3802234 Piston Ring Set – .040 Over (1.00 mm) – 89–07 5.9L Cummins*

Heavy-duty .040" (1.00 mm) oversize piston ring set for select 5.9L Cummins B/ISB engines. Interstate-McBee builds to OEM-equivalent specs for consistent sealing, stable oil control, and long service life on diesel rebuilds and overbores. *Fitment varies by piston design—always verify by ESN and piston part number.

• OEM cross-ref: Cummins 3802234 (.040 / 1.00 mm oversize).
• Engineered sealing: precise ring face geometry for compression retention and oil control.
• Durable materials: OEM-style metallurgy and surface finishes for diesel heat cycles.
• Aftermarket value: Interstate-McBee quality at a competitive price point.

Specifications

Vehicle Fitment

Fitment depends on the piston design used in your engine. Verify by ESN and piston part number before ordering.

• Confirmed Direct Applications:
  • 2003–2007 Dodge Ram 2500/3500 5.9L ISB (24V, common-rail) when equipped with matching piston/ring pack design.
  • 1994–1998 Dodge Ram 2500/3500 5.9L 12V on specific pistons using the 3802234 pack.
• Important: Many 1989–2002 B-series engines use different ring sets (e.g., .040" pack 3802423). If your build is 1989–2002, confirm the piston P/N or ask us to ESN-verify.

What’s Included

• (1) .040" / 1.00 mm oversize piston ring set for one cylinder (order 6 sets for a full engine)

Install Notes

• Measure bore and piston-to-wall per Cummins manual; confirm .040"/1.00 mm overbore.
• Check ring end gap in the bore; file-fit if required by spec.
• Observe ring orientation and stagger ring gaps per service procedures.

Warranty

Interstate-McBee new engine parts carry manufacturer warranty coverage. Terms vary by category—contact us for details on ring sets.

Why Buy From CPP Diesel

• ESN/piston P/N verification to ensure correct ring pack.
• Fast shipping and tech-backed support for B/ISB rebuilds.
• Stocked gaskets, pistons, pins, bearings, and related hardware.

FAQ