ACDelco 172-1611 Disc Brake Caliper Rear Left is a genuine replacement component designed for GM vehicles, including the Chevrolet Avalanche, GMC Sierra, and Cadillac Escalade. It mounts in the rear-left position of the disc brake system and provides the hydraulic clamping force required to engage the rotor when braking. Identified by the 172-1611 catalog number, this caliper restores braking performance for the rear-left caliper on the listed models.
