To ensure reliability, purchase GM part # 12621662 Rail Assembly, Sequential Multiport Fuel Injection Fuel. It is sometimes referred to as GM Fuel Rail. 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 Express, Silverado, Tahoe models. It fits GMC Savana, Sierra, Yukon. It also fits Hummer H3.
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