Dorman 523-057 Radiator Mount Bracket - Left

Radiator Mount Bracket for GM Left-Side Applications

This Dorman radiator mount bracket is a direct replacement for the original equipment bracket used on select GM trucks and SUVs. Built from steel with a black finish, it is engineered for left-side radiator support mounting on applications such as the Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade.

Part number 523-057 is made for buyers who need a weldable radiator bracket that matches the OE mounting style and dimensions for a secure repair.

Key Features

• Steel construction for strength and durability
• Black finish for a clean OE-style appearance
• Weldable mounting method for repair and replacement work
• Single mounting hole design
• Fits left-side radiator support locations on listed vehicles
• Cross-references OE part number 12477747

Detailed Product Overview

Dorman 523-057 is a radiator mount bracket designed to replace the original bracket on specific Chevrolet, GMC, and Cadillac applications. It measures 5.65 inches long, 1.91 inches wide, and 0.12 inches thick, giving technicians a replacement bracket that follows the OE form factor closely. The steel construction and weldable design make it suitable for radiator support repair where the original bracket has rusted, cracked, or separated from the support structure.

Compatible With 1999-2006 Chevrolet Silverado 1500, left; 2000-2006 Chevrolet Tahoe, left; 2000-2006 GMC Yukon, left; and 2002-2006 Cadillac Escalade, left. Also fits 2007 Chevrolet Silverado 1500 Classic, left, and 2007 GMC Sierra 1500 Classic, left. Part number 523-057 is also a practical match for 2000-2006 Chevrolet Suburban 1500, left, and 2000-2006 GMC Yukon XL 1500, left.

Common Repair Uses

• Replacing a rusted or damaged radiator support bracket
• Restoring proper radiator mounting on the left side
• Repairing broken OE bracket weld points
• Addressing radiator movement caused by bracket failure
• Supporting front-end cooling system repairs after corrosion or impact damage

Installation Notes and Tips

Verify left-side placement before installation and compare the bracket to the original part for hole location, length, and width. Because this bracket uses a weldable mounting method, installation should be performed by a qualified technician with proper welding equipment and corrosion protection procedures. Confirm radiator support condition before welding so the replacement bracket can be aligned correctly.

Quality Assurance

Dorman engineers and tests this radiator mount bracket as an OE-style replacement for the listed vehicles. The design is intended to match original equipment fit and function for radiator support repair on Chevrolet Silverado 1500, GMC Sierra 1500, and Cadillac Escalade applications.