To ensure reliability, purchase GM part # 21090040 Striker,Rear Door Lock. It is sometimes referred to as GMC Door Striker. 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, Sonoma, Yukon models.
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