Dorman 599-051 HVAC Control Module

Dorman 599-051 HVAC Control Module

Restore climate control operation with this Dorman HVAC control module for automatic temperature systems. Built as a fully tested replacement for the original unit, it addresses failed electronic climate controls in select Chevrolet Silverado and GMC Sierra trucks.

Key Features

• Automatic control type for vehicles with automatic temperature control
• 4 connectors, 56 terminals, female connector design
• Black housing with bolt-on mounting style
• Programming required after installation
• Direct replacement for select GM HVAC control applications
• Part number 599-051 for easy identification

Detailed Description

Dorman 599-051 is an HVAC control module for automatic climate systems in 2007-2009 Chevrolet Silverado 1500, Silverado 2500, Silverado 2500 HD, Silverado 3500, Silverado 3500 HD, and 2007-2009 GMC Sierra, Sierra 1500, Sierra 2500 HD, and Sierra 3500 HD applications. It is intended to replace a malfunctioning original module and restore control of cabin heating and air conditioning functions. This part number, 599-051, is a practical OE-style solution for Silverado and Sierra trucks that use a 56-pin, bolt-on module layout.

This part cross-references GM OE numbers 15116312 and 15952373 for the same application.

What It Helps Fix

• Unresponsive temperature or fan controls
• Intermittent HVAC operation
• Loss of automatic climate regulation
• Display or control input issues tied to the HVAC module
• Failed original control module in Silverado and Sierra trucks

Installation Notes and Tips

Programming is required after installation. Verify connector count, terminal count, and automatic temperature control configuration before replacement. This module uses a bolt-on mounting design and does not include an instruction manual, mounting hardware, or wire harness. Confirm vehicle fitment by year, make, model, and HVAC system configuration before ordering.

Quality Assurance

This Dorman replacement module is fully tested before release to support reliable operation in the specified GM truck applications. It is built for direct replacement use in compatible Chevrolet Silverado and GMC Sierra models listed above.