1989-2002 Cummins 5.9L Harmonic Balancer Installation Kit (300009)Fluidampr harmonic balancer installation kits are designed for the Cummins diesel owner that wants to ensure that their viscous harmonic damper stays exactly where it is installed. The special alloy heat treated, high strength extended length bolt(s) from ARP provide secure mounting, and a thick diamond impregnated friction washer provides an increased surface contact area between the crankshaft and the damper. For secure installation and peace of