Powerbond 25% Underdrive Harmonic Balancer for 1999-2013 GM Truck/SUV, Trailblazer SS (TBSS), and 2010-2015 Camaro SS - PBU1190-SS25
Powerbond 25% Underdrive Crankshaft Pulley is SFI Approved.
Powerbond offers an affordable solution for those wanting to free up some additional horsepower with an underdrive balancer pulley. An underdrive balancer frees up additional horsepower by reducing parasitic drag from the accessory drive through slowing down the belt drive and reducing drag.
This part number is compatible with both the 99-13 truck front drive accessories and 10-15 Camaro LS3/L99 front drive accessories as both applications share the same spacing.
Underdrive pullies will require a shorter drive belt and a/c belt for proper belt tensioning since they feature a smaller pulley diameter.