About Compatibility: for Buick for Rainier,for Cadillac for Escalade/Escalade ESV EXT,for Chevy for Avalanche 1500/Express 1500 2500 3500/Silverado 1500 Classic/Silverado 1500 HD Classic/Silverado 2500 HD Classic/Silverado 3500 3500 Classic/SSR/Suburban 1500 2500/Tahoe/Trailblazer EXT,for GMC for Envoy XL XUV/Savana 1500 2500 3500/Sierra 1500 1500 Classic/Sierra 1500 HD Classic/Sierra 2500 HD/Sierra 2500 HD 3500 Classic/Sierra 3500/Yukon/Yukon XL 1500 2500,for Hummer for H2. About Fuel Injector: Using high-performance raw materials, the porous injector can achieve precise injection to save fuel to extent.. About Installation:Fits and works better like original OE parts, achieving perfect replacement, simple installation not only saves time but also brings better driving experience.. About Working principle: The fuel injector transports petrol from the fuel tank to the engine cylinder to provide power for the vehicle. After atomizing the fuel, it ensures that the fuel is evenly distributed in the combustion chamber, improves fuel economy..
