To ensure reliability, purchase GM part # 12673868 PVC Tube Assembly. It is sometimes referred to as Buick Crankcase Breather Hose, Buick PCV Valve Hose. 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 Buick Envision, Regal models.
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