2016-2017 Mazda 6 Rear Bumper Reinforcement

Also known as

Rear Bumper Rebar

Impact Bar

Crash Bar

Bumper Beam

Rear Bumper Iron

Bumper Crossmember

What this part does

The rear bumper reinforcement is a heavy-duty structural beam mounted directly to the vehicle's rear unibody frame rails, concealed completely beneath the plastic outer bumper cover. It serves as the primary impact absorption component during rear-end collisions, engineered to take the brunt of a strike and distribute the resulting kinetic energy evenly across the chassis. This vital function protects both the occupants inside the cabin and critical rear-mounted vehicle components like the exhaust, suspension, and trunk pan. Because this bar is explicitly designed to yield and absorb force during an impact, even minor bends, cracks, or creases permanently compromise its structural integrity. Once damaged, the reinforcement beam cannot be safely heated or straightened; it must be entirely replaced to restore the vehicle to its original factory safety standards.

Fits these vehicles

Before you order

Inspect the mounting flanges and the rear unibody frame rails on your vehicle closely before installing this replacement reinforcement. If the vehicle's frame rails are even slightly tweaked or compressed from a previous impact, the new beam will not align properly, which will subsequently cause alignment and gap issues with the outer plastic bumper cover. Additionally, verify the condition of your rear energy absorber (the high-density foam or plastic insert that sits between this steel bar and the outer bumper cover). The absorber is almost always crushed during an impact that damages the reinforcement bar, and it is strictly required to properly support the flexible plastic fascia and prevent the cover from sagging.