The engine motor mounts absorbs noise and vibrations from the engine while securing it in place. Having put through constant pressure, these engine mounts do not last forever and will need replacing after some time. This engine mount kit also has anti-freeze in it to prevent it from cracking under extreme cold weather conditions.
If you are hearing clunks and feel like the engine is bouncing during stops or sudden acceleration then this may likely be the culprit. This engine mounts fit both left and right side and can easily be located beneath the front body of the engine. It is advisable to replace both mounts to maintain balance in the engine weight distribution.