Product Description
Interstate-McBee M-3969562 Rod Bearing (Standard) – 89–02 5.9L Cummins B/ISB
OEM-style standard-size connecting rod bearing shell for the 1989–2002 5.9L Cummins B/ISB platform. Interstate-McBee’s M-3969562 delivers precise clearances and reliable oil film retention for quiet, durable operation. Sold individually (one half shell)—order 12 halves for all 6 rods.
- Direct replacement: Built to OEM dimensions for consistent bearing crush and oil clearance.
- Diesel-grade materials: Engineered for high load, continuous-duty use in B-series engines.
- Aftermarket value: Interstate-McBee quality at a fraction of genuine-OEM cost.
- Flexible coverage: Listed for B/ISB applications used in 1989–2002 Dodge Ram 2500/3500 and select industrial QSB. Always verify by ESN.
Specifications
| Brand / Part # | Interstate-McBee M-3969562 |
|---|---|
| Size | Standard (STD) |
| Position | Connecting rod bearing shell (sold per half) |
| Cross-References | OEM: 3901170, 3939859, 3969562, 3971970, 4932952 |
| Package Contents | (1) Bearing half. For a complete engine set, order 12 halves. |
Vehicle Fitment
Verify by engine serial number (ESN) due to running changes.
- Dodge Ram 2500/3500 – 5.9L Cummins
- 1989–1993 12-Valve 6BT
- 1994–1998 12-Valve 6BT (P-pump)
- 1998.5–2002 24-Valve ISB
- Industrial / QSB / ISB 5.9 (application-specific; confirm by ESN)
Quantity Guide
- One engine requires 12 halves (6 pairs) to service all connecting rods.
- Certain rods use upper/lower specific shells; pair M-3969562 with the correct mate per ESN/rod style.
Install Notes
- Measure journal and housing bores; confirm oil clearance with Plastigage or mic/dial bore gauge.
- Cleanliness is critical—no lint/oil on back of shells; do not polish bearing surfaces.
- Follow Cummins service manual for rod bolt torque and angle; use new fasteners where specified.
Warranty
Interstate-McBee new engine components include manufacturer warranty coverage. Contact us with your ESN for part confirmation and warranty details.
FAQ
Will this fit both 12V (6BT) and 24V (ISB) 5.9L engines?Yes—this bearing is listed for B/ISB applications covering 1989–2002 Dodge Ram 5.9L. Always confirm by ESN due to mid-year updates.
How many do I need for a complete engine?
You’ll need 12 halves (6 pairs) to service all connecting rods on a 6-cylinder Cummins 5.9L.
Is M-3969562 an upper or lower shell?
Some rods use unique upper/lower shells. M-3969562 crosses multiple OEM numbers; pair per ESN and rod style. If your application specifies a dedicated lower shell, use the matching part per Cummins data.
What if my crank is ground undersize?
You’ll need undersize bearings (e.g., .010", .020", .030"). This listing is Standard (STD) only.
Does this fit 2003+ common-rail (CR) engines?
Common-rail engines (’03+) often use cracked-cap rods and different shell pairings. See the appropriate CR-era part numbers for those applications.
