To ensure reliability, purchase GM part # 15778699 Seal, Fuel Pressure Sensor (O Ring). It is sometimes referred to as Buick Fuel Injector O-Ring. 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, Enclave, Regal models.
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