03-16 Dodge 4893693 3969562 Conrod Bearing for Cummins 5.9L 6.7L Turbo 24V ISBE

Here are the technical details for Cummins 4893693 & 3969562 Connecting Rod Bearings, used in 5.9L/6.7L Turbo 24V (ISBe) Dodge/Cummins engines:

Core Specifications

1. Part Numbers:

   • 4893693: Standard size lower shell

   • 3969562: Standard size upper shell

2. Material:

   • Tri-metal construction: Steel backing + copper-lead layer + babbitt overlay

   • Micro-grooved for oil retention

3. Dimensions:

   • Width: 32mm (5.9L) / 34mm (6.7L)

   • Thickness: 2.0mm (varies by engine)

   • Clearance: 0.038–0.088mm (use plastigauge)

Compatibility

✔ Fits:

• 5.9L ISBe (2003-2007 Dodge Ram 2500/3500 24V)

• 6.7L ISB (2007.5–2018 Rams – verify crank journal size)

• Industrial QSB5.9/QSB6.7

❌ Excludes:

• Early 12V engines (use 3952884)

• Post-2018 6.7L (uses 68558653AA)

Installation Criticals

1. Torque Procedure:

   • ISBe 5.9L: 50 Nm + 90° turn (stretch bolts)

   • 6.7L ISB: 120 Nm + 90° turn

2. Pre-Installation:

   • Measure crank journal (max 0.025mm taper)

   • Soak bearings in clean 15W-40 before assembly

3. Break-In:

   • Run at 2,000 RPM for 20 minutes post-rebuild

Cross-Reference

Failure Warning Signs

⚠ Replace Immediately If:

• Copper visible (overlay worn)

• Scratches deeper than 0.05mm

• Abnormal rod knock at 1,800–2,200 RPM

Pro Tip

For 6.7L engines, always verify crank journal diameter – late models use 72mm vs. early 70mm.