To ensure reliability, purchase GM part # 84774421 Controller Assembly, Emis Rdcn Fluid. 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 Colorado, Express models. It fits GMC Canyon, Savana.
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