Hays Diesel 850 Clutch single disc clutch kits are an excellent upgrade from your current clutch and designed handle Diesel engines with up to 850 ft. lbs. torque or 100-200 horsepower above stock. The Diesel 850 kit features a matched pressure plate and a heavy duty, high torque ceramic button-style clutch disc. This clutch disc utilizes world leading Carlisle (Wellman) sintered buttons to provide increased holding and torque capacity along with additional clamping force. Carlisle is known as the world leader in clutch button and sintered friction technology. The Diesel 850 offers over a 30% greater clamping force than a stock clutch allowing you to put more power to the ground or haul full-size loads with confidence. Kits available for Dodge 5.9L Cummins Diesel and Ford 7.3L Power Stroke Diesel engines.