Power Bond PBU1117SS25 | Engine Harmonic Balancer

Part Number
Engine Harmonic Balancer

Fits: 97-13 Chevrolet Corvette, 04-07 Cadillac CTS, 08-09 Pontiac G8, 11-17 Chevrolet Caprice, 14-17 Chevrolet SS

Special Price $241.95 Regular Price $262.99
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PowerBond™ by DAYCO® Race Performance Balancers are designed with a unique combination of material and castings providing the maximum strength and durability of bonded dampening rubber. Each balancer is dynamically balanced for a smooth operation. Modifying the balancer diameter can alter the performance of the accessories and engine rev speeds that can increase the vehicle's horsepower output. These modifications can also help reduce power loss caused by front drive accessories and prevent over-revving alternators. Note: This modified balancer changes the geometry of the original belt drive. Dayco® recommends this balancer to be serviced by a professional installer.

BRAND: PowerBond By Dayco




Bolt Hole Quantity3
Counterweight BalanceNeutral, no counterweight
Crank Bore37.60
Crank Bore1.481
Crank Trigger/Exciter PlateNo
Hardware IncludedNo
Installation Instructions IncludedYes
Nose Outside Diameter54.05
Nose Outside Diameter2.128
Number of Integrated Pulleys2
Outer Ring MaterialSteel
Overall Outside Diameter176.00
Overall Outside Diameter6.930
Overall Width2.835
Overall Width72.00
Pulley 1 Number Of Grooves4
Pulley 1 Outside Diameter6.142
Pulley 1 Outside Diameter156.000
Pulley 1 TypeSerpentine
Pulley 2 Number Of Grooves6
Pulley 2 Outside Diameter5.512
Pulley 2 Outside Diameter140.000
Pulley 2 TypeSerpentine
Ring Width61.49
Ring Width2.421
Timing MarksYes
Woodruff Key IncludedNo



  • Pioneer: 872058


  • 2008-2009 Pontiac G8
  • 1997-2013 Chevrolet Corvette
  • 2014-2017 Chevrolet SS
  • 2011-2017 Chevrolet Caprice
  • 2004-2007 Cadillac CTS
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