GM GENUINE PARTS HVAC Temperature Valve Actuator 15-74122 (22754988) — OEM fit, stepper motor precision

This GM-recommended actuator replaces the factory stepper motor that controls the blend/temperature valve in heating, ventilation and air conditioning systems. Built to the manufacturer’s specifications, the unit is intended to match original fit, function and durability so technicians and DIYers can replace a failing actuator without modifying the system. The actuator ships from the OEM supplier and is identified by part numbers 15-74122 and 22754988.

How does this actuator restore HVAC temperature control?

The actuator replaces the stepper motor that moves the blend door, which regulates the ratio of heated and cooled air entering the cabin. When the original motor wears or the gears fail, symptoms include incorrect temperatures, noise during mode changes, or unresponsive controls. Installing this GM Genuine Parts unit returns mechanical precision and consistent positioning of the blend door for reliable temperature delivery.

• Direct OEM fit to the original mounting points and connector type
• Stepper motor design enables incremental, repeatable door positioning
• Engineered to match factory torque and rotation specifications

What vehicles and systems is the 15-74122 compatible with?

This actuator is produced as a GM-recommended replacement for specific General Motors HVAC assemblies. Compatibility is determined by the vehicle’s original part number and HVAC layout; confirm fitment by checking the vehicle’s existing part label or an electronic parts catalog. Using the correct part number ensures proper electrical connector, mounting orientation, and calibration behavior.

• Often used in GM passenger vehicles with the corresponding OE part numbers
• Intended for the HVAC blend-door/temperature valve application
• Verify compatibility via VIN lookup or parts cross-reference

What should I expect during installation and calibration?

Installation is typically straightforward: remove the dashboard access panel or glove box as required, unplug the electrical connector, unbolt the old actuator, and install the replacement in the same orientation. Some vehicles may perform an automatic or manual actuator relearn/calibration after electrical reconnection, so follow the vehicle manufacturer’s service procedure. Basic hand tools and a few minutes of time are usually all that’s needed for direct-fit swaps.

• Direct bolt-on replacement with factory-style connector for quick swap
• Minimal tools required: screwdrivers and small ratchet set
• Follow vehicle-specific recalibration steps if required by OEM service manual

Who is this part for? Technicians and owners who need an OEM-quality replacement for a worn or noisy HVAC stepper motor will value this GM Genuine Parts actuator. It’s suited to professional repair shops maintaining factory standards and to informed DIYers who want a direct-fit, OEM-spec component with predictable performance. Always confirm part number compatibility with your vehicle’s VIN or original part label before purchase.

Features & origin:

• GM-recommended replacement part for your GM vehicle’s original factory component
• Offering the quality, reliability, and durability of GM OE
• Manufactured to GM OE specification for fit, form, and function
• Country of Origin: China