Holley Introduces Hays Diesel 650 Single-Disc Clutch

New from Holley – the Hays’ Diesel 650 Clutch. This single-disc clutch can handle up to 650 lbs. ft. of torque while providing great drivability and a stock pedal feel. See more details below.

Official Release:

Holley/MSD is pleased to announce the release of Hays’ Diesel 650 Clutch, a single-disc unit that’s a noticeable upgrade from stock clutches developed specifically to handle Diesel engines that make up to 650 foot-pounds of torque. They include a matched pressure plate and a single heavy-duty high-torque steel-back clutch disc and offer vastly improved drivability and a true stock pedal “feel” for smooth, chatter-free engagement.

Available for Dodge 5.9L Cummins Diesel and Ford 6.0L and 7.3L Power Stroke Diesels, Hays Diesel 650 Clutches feature a riveted disc with advanced steel-back friction material that provides 30% more clamping force, superior strength, better heat dissipation, extended wear, and quick recovery. The steel-back facings are riveted to a marcel fin disc that allows for smooth and positive engagement perfect for street use, towing, and heavy hauling applications.

Features:

  • Excellent replacement for stock clutch for torque levels up to 650 lbs. ft.
  • Great drivability along with stock pedal feel
  • Upgraded clutch materials offers up to 30% more clamping pressure than stock OE clutch
  • Features a matched pressure plate and a heavy duty, high torque steel back clutch disc
  • Smooth, chatter-free operation using top quality organic composite friction surface material
  • Riveted clutch disc with advanced steel back friction material provides additional clamping force and superior strength
  • Kits come complete with pressure plate, clutch disc, throwout bearing, alignment tool, and instructions

Article Sources

About the author

Chris McWilliams

Chris McWilliams grew up watching his dad race go-karts around his Southern Indiana home and started racing junior dragsters when he was 10 years old. Chris drove a UMP Mini Stock for two seasons until he totaled his racecar in an accident at Western Kentucky Speedway. He is currently a college student at Oakland City University working on a degree to pay the bills for his dirt racing addiction.
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