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Product Details

Dayco Belts, Hoses, Tensioners & Pulleys

Supercharger Performance Harmonic Balancer by Dayco®. Specially developed for high performance supercharged engines, this product by Dayco features a high pressure bonded dampening runner for maximum torque resistance and twin keyways to ensure secure crank mounting with six pulley bolt hole pattern.



  • Constructed for high performance supercharged engines
  • Twin keyways for secure crank mounting with six pulley bolt hole pattern
  • High pressure bonded dampening runner for maximum torque resistance
  • SFI 18.1 approved design, which means it's approved for the track

During engine operation, cylinder firing causes the crankshaft to twist back and forth a small amount creating torsional vibration along the shaft. The harmonic balancer, also known as the vibration damper, absorbs and dissipates this energy to prevent the crankshaft from cracking and breaking. The balancer consists of an inertia ring, usually made of cast iron, mounted on a cast iron hub and separated by a rubber cushion.

Because racing cars operate in extreme conditions of very high RPM and ultimate power demand, they require extra durable and high performance balancers for reliable performance. With this product by Dayco, you get nothing less than the highest level of performance and reliability. Manufactured especially for high performance supercharged engines, it ensures maximum torque resistance thanks to its high pressure bonded dampening runner while providing absolutely secure crank mounting with six pulley bolt hole pattern thanks to twin keyways.

Since 1905, Dayco has been a leader in the automotive parts manufacturing industry. During the early 1900s, Dayco was the first and only company manufacturing the airless tire. By the 1920s, the company had a robust tire manufacturing process in Dayton, Ohio for cars, large trucks and buses. From its founding to today, the company has followed its primary business strategy to anticipate and satisfy all the needs and requirements of its customers by providing innovative, quality, and durable products. Today its wide product line includes belts, tensioners, pulleys and hydraulics equipment for the automotive, construction, trucking, ATV, agricultural, snowmobile, and industrial markets.


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