For 1989-2018 5.9L and 6.7L Cummins performance engine builds above 700hp / 1,250 ft-lbs torque Fluidampr recommends damper installation with the Full Power Kit for secure mounting. Kit features textured finished torque plate with 5/8? hex head for barring engine, diamond impregnated friction washer, and heat treated high strength bolts from ARP?. Use in conjunction with Fluidampr Cummins Drill Pin Kit (p/n 300002) for applications above 3,500rpm.