To ensure reliability, purchase GM part # 12389521 Valve Kit,Brake Combination (Stamped J). 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 Chevrolet Blazer models. It fits GMC Jimmy. It also fits Oldsmobile Bravada.
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