To ensure reliability, purchase GM part # 1990163 Switch Assembly, Ignition & Dimmer. It is sometimes referred to as Buick Ignition Switch. 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 Century, Lesabre, Park Avenue models.
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