Product Description
SOUTH BEND 13125-OR-HD SINGLE DISC CLUTCH – 1988–2004 DODGE RAM 5.9L CUMMINS (GETRAG / NV4500 / NV5600 NON-HO)
HD street/tow holding power with smooth engagement. The South Bend 13125-OR-HD is a full-organic, heavy-duty single disc designed for tuned 5.9L Cummins trucks that still see daily driving and towing. It delivers predictable engagement, increased torque capacity, and durability without the harsh on/off feel.
- Capacity: ~425 HP / ~900 ft-lbs (truck & use dependent)
- Friction: Full organic HD lining on a heavy-duty disc
- Use case: Street/Tow, daily driving, moderate performance
- Flywheel: Uses the appropriate flywheel for each transmission (see notes)
FITMENT
- Engine: 5.9L Cummins
- Model Years: 1988–2004 Dodge Ram 2500/3500
- Transmissions: Getrag 5-speed (1988–1993), NV4500 5-speed (1994–2004), NV5600 Non-HO 6-speed (≈1999–2000.5)
- Input Shaft: 1.25" (stock Getrag/NV4500 and early NV5600 Non-HO). Not for 1-3/8" (1.375") upgrades.
WHAT'S INCLUDED
- HD pressure plate
- Full-organic HD clutch disc
- Pilot bearing, release bearing, alignment tool, and hardware (application dependent)
CROSS-REFERENCE / ALTERNATIVES
- 13125-OR (standard organic single disc for 1988–1993 Getrag applications)
- 13125-OK-HD (HD organic single disc variant with similar fitment)
- SDD3250-5 (Street/Tow dual disc ~650 HP for NV4500 & Non-HO NV5600)
INSTALL & HELPFUL NOTES
- Verify input shaft size before ordering. This kit is for 1.25" input applications.
- NV5600 HO (2000.5–2005.5) typically requires 1.375" input clutch kits—this part does not fit HO setups.
- Follow South Bend’s break-in procedure for best life and engagement quality.
FAQ
Will this hold towing at higher GCW?Within its ~425 HP / ~900 ft-lb rating, it performs well for street/tow duty when the rest of the drivetrain is healthy. Downshift as needed to manage EGT and clutch load.
Does it fit NV5600 HO trucks?
No. HO trucks (≈2000.5–2005.5) typically use a 1-3/8" input and different clutch specs. This kit is for Non-HO NV5600 (≈1999–2000.5) with 1.25" input.
Is a new flywheel required?
Many Getrag/NV4500/NV5600 setups benefit from pairing the correct flywheel surface with the disc/pressure plate. Inspect your flywheel and follow South Bend guidance for resurfacing or replacement.
What pedal feel should I expect?
Comparable to a firm OE feel with smoother engagement than aggressive ceramic options—ideal for daily and towing use.
