【ATTENTION】- Please enter your vehicle model in the "Amazon confirmed fit" plugin before purchasing these fuel injectors. It will guide you to purchase the correct fuel injectors more conveniently. 【Fitments 1】- Compatible with Chevrolet: Silverado 1500 V8 4.8L 2007-2009, Silverado 1500 V8 5.3L/6.0L 2009 , Silverado 1500 V8 5.3L 2007-2008, Silverado 1500 2008 V8 6.0L, Silverado 2500 HD V8 6.0L 2007-2010, Silverado 3500 HD V8 6.0L 2008, Suburban 1500 V8 5.3L 2007-2009, Suburban 1500/2500 V8 6.0L 2007-2008, Tahoe V8 4.8L/5.3L 2007-2009, Tahoe V8 6.0L 2008-2009. Compatible with Cadillac: Escalade V8 6.0L 2009-2009, Escalade V8 6.2L 2007-2008, Escalade ESV V8 6.2L 2007-2008, Escalade EXT V8 6.2L 2007-2008; Compatible with Buick: Rainier V8 5.3L 2005-2007. Compatible with Saab: 9-7x V8 5.3L 2005-2009, 9-7x V8 6.0L 2008-2009. 【Fitments 2】- Compatible with GMC: Sierra 1500 V8 4.8L 2007-2009, Sierra 1500 V8 5.3L/6.0L 2009, Sierra 1500 V8 5.3L/6.2L 2007-2008, Sierra 2500/3500 HD V8 6.0L 2008, Yukon V8 4.8L/5.3L 2007-2009, Yukon V8 6.0L 2008-2009, Yukon V8 6.2L 2007-2008, Yukon XL 1500 V8 5.3L 2007-2009, Yukon XL 1500 V8 6.0L/6.2L 2007-2008, Yukon XL 2500 V8 6.0L 2007-2008, Canyon V8 5.3L 2009, Envoy 2005-2009 V8 5.3L, Envoy XL V8 5.3L 2005-2006, Savana 2500 V8 4.8L/6.0L 2008-2009, Savana 3500 V8 4.8L/6.0L 2008-2009, Compatible with Hummer: H2 V8 6.2L 2008, H3 V8 5.3L 2008-2009, H3T V8 5.3L 2009; Compatible with Isuzu: Ascender V8 5.3L 2005-2006, NPR V8 6.0L 2008; 【OE Numbers】- 12580681, 19421333, 2171621, 67487, 832-11203, FJ887. 【Fuel Economy】- The design of automobile fuel injectors can accurately control the amount of fuel injection, thereby optimizing fuel economy and helping you save fuel costs 【Durability】- Our automotive fuel injectors are precision manufactured and subject to strict quality control, providing excellent durability and ensuring long-term and stable use 【Regular Cleaning Fuel Injectors】- Generally speaking, if the car is in good condition and the fuel quality is good, it can be done every 40,000-60,000 kilometers. Even if the fuel injection nozzle is slightly clogged, you don't need to be too nervous, because the impurities can be sprayed and dissolved when accelerating at a high gear. It is recommended that car owners should often run at high speeds when driving daily to reduce the possibility of carbon deposits 【BUY WITH CONFIDENCE】- SeyPon has a professional after-sales service team, if you have any questions, please feel free to reach out to us, we will reply to you within 8 hours and offer the solve way for you. Compatible with Chevrolet: Silverado 1500 V8 4.8L 2007-2009, Silverado 1500 V8 5.3L/6.0L 2009 , Silverado 1500 V8 5.3L 2007-2008, Silverado 1500 2008 V8 6.0L, Silverado 2500 HD V8 6.0L 2007-2010, Silverado 3500 HD V8 6.0L 2008, Suburban 1500 V8 5.3L 2007-2009, Suburban 1500/2500 V8 6.0L 2007-2008, Tahoe V8 4.8L/5.3L 2007-2009, Tahoe V8 6.0L 2008-2009, Trailblazer V8 5.3L 2006-2008, Trailblazer V8 6.0L 2007-2009, Trailblazer EXT V8 5.3L 2005-2006, Avalanche V8 5.3L 2007-2009, Avalanche V8 6.0L 2007-2008, Avalanche 1500 V8 5.3L 2006, Express 2500 V8 4.8L 2008-2009, Express 2500 V8 6.0L 2008, Express 3500 V8 4.8L 2008-2009, Express 3500 V8 6.0L 2008. Compatible with GMC: Sierra 1500 V8 4.8L 2007-2009, Sierra 1500 V8 5.3L/6.0L 2009, Sierra 1500 V8 5.3L/6.2L 2007-2008, Sierra 2500/3500 HD V8 6.0L 2008, Yukon V8 4.8L/5.3L 2007-2009, Yukon V8 6.0L 2008-2009, Yukon V8 6.2L 2007-2008, Yukon XL 1500 V8 5.3L 2007-2009, Yukon XL 1500 V8 6.0L/6.2L 2007-2008, Yukon XL 2500 V8 6.0L 2007-2008, Canyon V8 5.3L 2009, Envoy 2005-2009 V8 5.3L, Envoy XL V8 5.3L 2005-2006, Savana 2500 V8 4.8L/6.0L 2008-2009, Savana 3500 V8 4.8L/6.0L 2008-2009, Compatible with Cadillac: Escalade V8 6.0L 2009-2009, Escalade V8 6.2L 2007-2008, Escalade ESV V8 6.2L 2007-2008, Escalade EXT V8 6.2L 2007-2008; Compatible with Hummer: H2 V8 6.2L 2008, H3 V8 5.3L 2008-2009, H3T V8 5.3L 2009; Compatible with Isuzu: Ascender V8 5.3L 2005-2006, NPR V8 6.0L 2008; Compatible with Saab: 9-7x V8 5.3L 2005-2009, 9-7x V8 6.0L 2008-2009. Compatible with Buick: Rainier V8 5.3L 2005-2007. OE Numbers : 12580681, 19421333, 2171621, 67487, 832-11203, FJ887.