YCT HVAC Blend Door Actuator 604-112 for Chevy GMC Cadillac — Direct-Fit Replacement

This YCT actuator replaces worn or failed blend/door motors on compatible vehicles. It is designed to match original equipment fitment numbers (15-73952, 52495593, 89018374, 604-112, 604112) and restore the ability of the HVAC system to route air correctly through the heater and A/C ducts. Before ordering, verify your vehicle year, model and part number to ensure correct compatibility and avoid returns.

Which vehicles will this YCT actuator fit?

The actuator covers a wide range of GM trucks, SUVs and select luxury models produced in the 2000s and early 2010s. It fits Cadillac Escalade models and many Chevrolet and GMC trucks and SUVs as listed in the product details. Always cross-check the OE numbers and the actuator image against your existing part.

• Cadillac Escalade 2003–2014
• Chevrolet: Avalanche, Silverado, Suburban, Tahoe models 2003–2014 (varies by submodel)
• GMC: Sierra and Yukon line 2003–2014 (including XL and Denali where noted)
• Hummer H2 coverage for 2008–2009

How do I confirm this actuator is the right replacement for my car?

Confirming fitment requires matching the part number on your old actuator and checking the connector shape and mounting points. Compare the OE numbers listed here with the number stamped on your original part and review vehicle compatibility in the listing. If in doubt, remove the old actuator and photograph it next to this product listing before purchasing.

• Match OE numbers: 15-73952, 52495593, 89018374, 604-112, 604112
• Compare electrical connector and mounting screw locations
• Review exact vehicle year, make and model against the compatibility list

What performance should I expect after installation?

Once installed correctly, the actuator should move the blend/air doors smoothly and respond to climate control commands, improving temperature balance and airflow direction. It is built to replicate the original component’s geometry and electrical interface for reliable operation. Keep in mind that doors or linkages damaged prior to replacement may still need attention.

• Smooth door movement restoring proper airflow
• Electrical connector and mounting match for straightforward swap
• Works with original HVAC controls—no reprogramming required in most vehicles

What should I do if the part doesn't fit or function as expected?

First, recheck the OE number and the photos of your original actuator versus the YCT unit. If the part is not compatible, return it unused in the undamaged original packaging following the seller’s return instructions. For installation issues, inspect linkages and harnesses, and consult a qualified technician if needed.

• Verify part number and connector before installation
• Return unused parts in original packaging if incompatible
• Inspect related HVAC door linkages if movement is still restricted

Who is this for: This YCT actuator is intended for DIY mechanics, independent repair shops and fleet owners who maintain Chevrolet, GMC, Cadillac or Hummer vehicles listed in the compatibility section. It’s suitable for anyone needing a like-for-like HVAC blend/door actuator replacement to restore proper heating and cooling performance—provided they confirm fitment against their original part number and vehicle year/model.

Note: Please double-check fitment details and compare your current actuator’s part number and connector images with the listing to avoid purchasing the wrong item. If you receive a non-fitting part, return it in undamaged condition as described by the seller.