The material allows for tensile and impact strength.
07-11 Wrangler JK, 2 & 4 Door;3.8L 6 cylinder engine;Direct replacement to ensure proper fit;California Residents: WARNING Dorman Harmonic Balancer Assembly - 594-426 Dormans Harmonic Balancers feature a stress-resistant rubber bond that withstands the damaging effects of heat, salt, ozone and general wear and tear..