To ensure reliability, purchase GM part # 84178783 Module Assembly, Blower Motor Control. It is sometimes referred to as GMC Blower Motor Resistor, GMC HVAC Control Module. Directly from GM, genuine parts are superb with regards to quality, longevity, and fit. Every single part passed stringent quality testing, so you can be sure that it's safe, durable, and built to perform like your original parts. This part fits specific GMC Sierra, Terrain, Yukon models.
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