SOUTH BEND 13125-OFEK SINGLE DISC CLUTCH – 1988–2004 DODGE RAM 5.9L CUMMINS (GETRAG / NV4500 / NON-HO NV5600)

The proven OFE street/tow upgrade. South Bend’s 13125-OFEK converts your stock 12-1/4" setup to a stronger 13" single-disc with OFE (Organic/Feramic) facings and a modified pressure plate. It’s the sweet spot for tuned daily drivers and tow rigs: smooth takeoff, strong holding power, and long service life.

• Capacity: ~475 HP / up to ~1,000 ft-lbs (truck/mods dependent)
• Use case: Street/Tow, daily driving, moderate performance
• Conversion: Upgrades to 13" clutch with included flywheel
• Pedal feel: Smooth engagement, street-friendly

FITMENT

• Engine: 5.9L Cummins
• Model Years: 1988–2004 Dodge Ram 2500/3500
• Transmissions: Getrag G360 5-speed (1988–1993), NV4500 5-speed (1994–2004), NV5600 Non-HO 6-speed (approx. 1999–2000.5)
• Input Shaft: 1.25" stock (not for 1-3/8" upgrades)

WHAT'S INCLUDED

• OFE single-disc clutch (organic/feramic)
• 13" flywheel (re-drilled/refaced for conversion)
• Alignment tool, pilot bearing, release/throwout bearing, hardware

CROSS-REFERENCE / ALTERNATIVES

• Need more holding for NV4500 / early NV5600? Step up to SDD3250-5 Street/Tow Dual Disc.
• For NV5600 HO (2000.5–2005.5): choose SDD3250-6-ORG.
• HD Hydraulics 1998–2002 or HD Hydraulics 2003+ recommended for consistent release.
• Shop all NV4500 clutch kits for related options and hardware.

INSTALL NOTES

• Verify transmission and input shaft size (1.25") before ordering.
• Break-in: ~500 miles of stop-and-go before towing or full-throttle use.
• Avoid aggressive downshifts during break-in to reduce uneven wear.

FAQ

No. HO trucks use different specs. Use the SDD3250-6-ORG instead.

Yes. The 13125-OFEK converts the truck to a 13" clutch and ships with the correct flywheel.

Engagement is smooth and streetable. Pedal effort is higher than stock but appropriate for a towing/performance clutch.

Yes—it's designed for street/tow use. Observe the break-in period and keep RPM in the torque band when pulling heavy.

Consider a dual disc such as the SDD3250-5 for added capacity and heat management.