2007 Workhorse R-Series Harmonic Balancers
- Fluidampr®Harmonic BalancerWorkhorse R-Series 8.1L With Chevy Big Block 2007, Harmonic Balancer by Fluidampr®. A Fluidampr performance damper provides premium, broad range control of destructive crankshaft torsional vibration for optimum performance and...Designed to deliver trouble-free, consistent performanceRight for your vehicle and lifestyle$612.00