South Bend 1939-CB Stage 2 Ceramic Clutch Kit | 1999–2003 7.3L Powerstroke ZF-6 (450 HP / 900 ft-lbs)

For 1999–2003 Ford 7.3L Powerstroke owners with the ZF-6 6-speed manual, the factory Valeo clutch disc is a well-known weak point. Under the intense torsional vibrations and torque of the 7.3L diesel, the dampening springs are frequently ejected, leading to catastrophic clutch failure.

The South Bend 1939-CB Clutch Kit solves this problem with a heavy-duty Spicer-style 4-paddle ceramic button disc and free-travel sprung hub. This design — proven for over 20 years in semi-truck applications — effectively absorbs harmful engine harmonics while delivering significantly more torque capacity and heat resistance than the stock clutch.

This Stage 2 daily/towing clutch bolts directly to your existing OEM solid flywheel (flywheel not included) and provides smooth, near-stock engagement with dramatically improved holding power.

Key Features & Benefits:

• Rated for up to 450 horsepower and 900 ft-lbs of torque
• 13" full ceramic button disc with 4-paddle Spicer design
• Sprung hub for excellent vibration damping and smooth power delivery
• Modified pressure plate with increased clamp load
• Superior heat dissipation for towing and performance use
• Direct bolt-on to OEM solid flywheel — no flywheel swap required
• Maintains excellent drivability for daily driving and heavy towing

Whether you’re towing heavy loads, daily driving, or running moderate power modifications, the South Bend 1939-CB gives you the reliability and confidence your 7.3L deserves without sacrificing pedal feel.

Fitment: 1999–2003 Ford 7.3L Powerstroke with ZF-6 6-Speed Manual Transmission

Kit Includes:

• Ceramic button clutch disc
• Pressure plate
• Throwout (release) bearing
• Pilot bearing

Note: Flywheel is not included — this kit is designed to work with your existing OEM solid flywheel.

Warranty: 1 Year / 12,000 Miles (manufacturer defects)