Product Description
SOUTH BEND CLUTCH F/C1944-6OFEK-6.0/6.4 – 13" ORGANIC/FERAMIC CUMMINS-TO-FORD ZF-6 CONVERSION KIT (5.9L–6.7L)
Purpose-built for Cummins swap reliability. This South Bend OFE (Organic/Feramic) single-disc conversion kit is engineered to mate your 5.9L–6.7L Cummins to Ford’s ZF-6 manual found behind the 6.0L/6.4L Power Stroke. The organic/feramic friction combo delivers smooth street/tow engagement with the thermal capacity you need in a work truck.
- Rating: ~475 HP / ~1,000 ft-lbs (application dependent)
- Diameter: 13"
- Friction: OFE (Organic/Feramic), single disc
- Includes: Custom conversion flywheel, pressure plate, clutch disc, release bearing, pilot bearing, alignment tool, hardware
- Use: Street / Tow (not recommended for stock applications)
FITMENT
- Engine: Cummins 5.9L (’89–’07) & 6.7L (’07.5–’22+ as swapped)
- Transmission: Ford ZF-6 6-speed used with 6.0L (2003–2007) & 6.4L (2008–2010) Power Stroke trucks
- Swap Type: Cummins engine into Ford Super Duty with ZF-6 (6.0/6.4) bellhousing pattern
WHAT'S INCLUDED
- Performance pressure plate (OFE spec)
- 13" OFE single-disc clutch
- Conversion flywheel
- Release/throwout bearing & pilot bearing
- Alignment tool & hardware
CROSS-REFERENCE / ALTERNATIVES
- F/C1944-6OKHD-6.0/6.4 – 13" full organic (milder engagement)
- 1944-6OFEK – ZF-6 clutch for Ford 7.3L (non-conversion)
- Heavy towing or power beyond spec? Consider dual-disc conversion options.
INSTALL NOTES
- Confirm bellhousing/trans is Ford ZF-6 from a 6.0L/6.4L donor.
- Follow South Bend break-in for maximum life and smoothness.
- Inspect hydraulics and linkage; refresh if worn for proper release.
FAQ
What power and torque will this kit support?Approx. 475 HP and 1,000 ft-lbs with proper setup. It’s intended for street/tow use and Cummins-to-ZF-6 conversions.
Does it include the conversion flywheel?
Yes. The kit bundles the correct flywheel plus release and pilot bearings, alignment tool, and hardware.
Will it fit any ZF-6?
It’s designed for the ZF-6 used behind Ford 6.0L/6.4L (2003–2010). Verify your donor trans and bellhousing.
Is this good for heavy towing?
Yes—OFE material offers smooth takeoff with strong heat resistance. For extreme weights or higher power, consider a dual-disc conversion.
Is the kit SFI certified?
No—this is a street/tow conversion package. For competition, look for SFI-rated systems.
