The material allows for tensile and impact strength.
.4.0L 6 cylinder engine;Includes woodruff key, bolts, and washers for a complete repair;Direct replacement to ensure proper fit;California Residents: WARNING Dorman Harmonic Balancer Assembly - 594-018 Dormans Harmonic Balancers feature a stress-resistant rubber bond that withstands the damaging effects of heat, salt, ozone and general wear and tear.