The plastic piece that is mounted on the rear end of your car is called the rear bumper or the bumper cover. Te Chevy Avalanche rear bumper is available is a lot of different styles and options. You can get the one that best suits your tastes and requirements. The Chevy Avalanche custom rear bumper is usually made out of ABS plastic, or fiber glass. Carbon fiber is another commonly used material to make the Chevy Avalanche Bumper covers. These rear bumpers absorb the impact created by crashes and also enable the exhaust tip of your car to look even better by accenting it. Get your Chevy Avalanche OEM replacement bumpers today!