To ensure reliability, purchase GM part # 12646387 Chain Assembly, Tmg. It is sometimes referred to as Buick Timing Chain. 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 Allure, LaCrosse, Rainier models.
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