To ensure reliability, purchase GM part # 84372499 Arm Assembly, Wsw *Black. It is sometimes referred to as GMC Windshield Wiper, GMC Wiper Arm. 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 models.
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