Product Description
SOUTH BEND 13125-OR SINGLE DISC CLUTCH – 1988–2004 DODGE RAM 5.9L CUMMINS (GETRAG 360 & NV4500)
Daily-driveable torque with towing composure. The South Bend 13125-OR is a proven single-disc upgrade for 5.9L Cummins trucks that tow, commute, and see occasional spirited use. Expect smooth take-off, confident holding up to ~400 HP / ~800 ft-lbs (truck dependent), and durable materials designed for heat and load.
- Rating: ~400 HP / ~800 ft-lbs (approx., build dependent)
- Use case: Street/Tow, daily driving
- Disc: Performance friction lining (single disc, sprung hub)
- Pressure Plate: High-clamp, street-friendly engagement
- Flywheel: Included
FITMENT
- Engine: 5.9L Cummins
- Model Years: 1988–2004 Dodge Ram 2500/3500 (verify transmission)
- Transmissions: Getrag 360 (1989–1993) and NV4500 (1994–2004)
- Input Shaft: 1.25" (stock Getrag/NV4500). Not for NV5600 HO 1-3/8" (1.375").
- Note: 2003–2004 trucks are NV5600 from the factory; this kit fits those years only if converted to NV4500 with 1.25" input.
WHAT'S INCLUDED
- Performance pressure plate
- Single clutch disc (sprung hub)
- Flywheel
- Pilot bearing, release bearing, alignment tool, hardware
CROSS-REFERENCE / ALTERNATIVES
- Looking for more capacity with similar manners? Consider South Bend Street/Tow dual disc options.
- NV5600 HO trucks typically require a different part number and 1-3/8" input compatibility.
- For mild builds focused on smooth stock-like behavior, a standard organic single disc may suffice.
INSTALL NOTES
- Confirm input shaft size before ordering (1.25" for this kit).
- Follow proper break-in procedures for best life and engagement quality.
- Inspect hydraulics; worn components can cause release issues with any performance clutch.
FAQ
Will this hold a hot tune and regular towing?Yes, up to roughly 400 HP / 800 ft-lbs depending on vehicle weight, gearing, and driving style. For heavier trailers or aggressive tuning, consider a Street/Tow dual disc.
Does it fit NV5600 HO trucks?
No. The HO NV5600 uses a 1-3/8" input and different specs. This kit is for 1.25" Getrag/NV4500 setups.
Is the flywheel included?
Yes. This kit includes a flywheel matched to the pressure plate and disc for proper height and balance.
How is pedal feel vs. stock?
Similar to stock at light throttle with a more positive bite under load. Still very streetable for daily use.
Do I need to upgrade hydraulics?
Not required on a healthy system, but older hydraulics can limit release. Upgrading ensures consistent engagement.
