ACDelco GM Genuine Parts Fuel Injectors 12738849

ACDelco 12738849 Fuel Injector Chevrolet GMC 6.0L ACDelco 12738849 fuel injector designed as a direct replacement for compatible Chevrolet and GMC applications. Engineered to provide precise fuel delivery for smooth engine operation, proper combustion, responsive acceleration, and reliable performance. Product Specifications Product Type Fuel Injector Brand ACDelco / GM Genuine Parts Part Number 12738849 Interchange / Replaces 12613412 Fuel Injection Type Sequential Multi-Port Fuel Injection Replacement Type Direct Replacement O-Rings Included Yes Wiring Harness Included No Remanufactured No Quantity 1 Piece Vehicle Fitment Please verify your vehicle year, model, trim, engine, fuel type, and original injector part number before ordering. Year Make Model Body & Trim Engine & Fuel Type 2020 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2020 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2020 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2020 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2020 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2019 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2019 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2019 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2019 Chevrolet Silverado 2500 HD High Country, LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2019 Chevrolet Silverado 3500 HD High Country, LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2019 Chevrolet Suburban 3500 HD LS, LT 6.0L V8 - Flex 2019 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2019 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2018 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2018 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2018 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2018 Chevrolet LCF 3500 Base 6.0L V8 - Flex, 6.0L V8 - Gas 2018 Chevrolet Silverado 2500 HD High Country, LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2018 Chevrolet Silverado 3500 HD High Country, LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2018 Chevrolet Suburban 3500 HD LS, LT 6.0L V8 - Flex, 6.0L V8 - Gas 2018 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2018 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2017 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - Flex, 6.0L V8 - Gas 2017 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - Flex, 6.0L V8 - Gas 2017 Chevrolet Express 4500 Base 6.0L V8 - Flex, 6.0L V8 - Gas 2017 Chevrolet LCF 3500 Base 6.0L V8 - Flex, 6.0L V8 - Gas 2017 Chevrolet Silverado 2500 HD High Country, LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2017 Chevrolet Silverado 3500 HD High Country, LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2017 Chevrolet Suburban 3500 HD LS, LT 6.0L V8 - Flex, 6.0L V8 - Gas 2017 GMC Savana 2500 Base, LS, LT 6.0L V8 - Flex, 6.0L V8 - Gas 2017 GMC Savana 3500 Base 6.0L V8 - Flex, 6.0L V8 - Gas 2016 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2016 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2016 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2016 Chevrolet LCF 3500 Base 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2016 Chevrolet Silverado 2500 HD High Country, LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2016 Chevrolet Silverado 3500 HD High Country, LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2016 Chevrolet Suburban 3500 HD LS, LT 6.0L V8 - Flex, 6.0L V8 - Gas 2016 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2016 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2015 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2015 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2015 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex 2015 Chevrolet Silverado 2500 HD High Country, LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2015 Chevrolet Silverado 3500 HD High Country, LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2015 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2015 GMC Savana 3500 Base 6.0L V8 - CNG, 6.0L V8 - Flex 2014 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2014 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2014 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex 2014 Chevrolet Silverado 2500 HD LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2014 Chevrolet Silverado 3500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2014 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2014 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex 2013 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2013 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2013 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex 2013 Chevrolet Silverado 2500 HD LT, LTZ, WT 6.0L V8 - CNG, 6.0L V8 - Flex, 6.0L V8 - Gas 2013 Chevrolet Silverado 3500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2013 Chevrolet Suburban 2500 LS, LT 6.0L V8 - Flex 2013 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2013 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex 2012 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2012 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2012 Chevrolet Express 4500 Base 6.0L V8 - CNG, 6.0L V8 - Flex 2012 Chevrolet Silverado 2500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas 2012 Chevrolet Silverado 3500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2012 Chevrolet Suburban 2500 LS, LT 6.0L V8 - Flex 2012 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2012 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex 2011 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2011 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2011 Chevrolet Express 4500 Base 6.0L V8 - Flex 2011 Chevrolet Silverado 2500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas 2011 Chevrolet Silverado 3500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas, 6.6L V8 - Diesel 2011 Chevrolet Suburban 2500 LS, LT 6.0L V8 - Flex 2011 GMC Savana 2500 Base, LS, LT 6.0L V8 - CNG, 6.0L V8 - Flex 2011 GMC Savana 3500 Base, LS 6.0L V8 - CNG, 6.0L V8 - Flex 2010 Chevrolet Express 2500 Base, LS, LT 6.0L V8 - Flex 2010 Chevrolet Express 3500 Base, LS, LT 6.0L V8 - Flex 2010 Chevrolet Express 4500 Base 6.0L V8 - Flex 2010 Chevrolet Silverado 2500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas 2010 Chevrolet Silverado 3500 HD LT, LTZ, WT 6.0L V8 - Flex, 6.0L V8 - Gas 2010 Chevrolet Suburban 2500 LS, LT 6.0L V8 - Flex 2010 GMC Savana 2500 Base, LS, LT 6.0L V8 - Flex 2010 GMC Savana 3500 Base, LS 6.0L V8 - Flex Important Fitment Note: Fitment varies by year, model, trim, engine, fuel type, and vehicle configuration. Some applications listed above include multiple engines. Please verify part number 12738849 against your VIN and original injector before ordering. Product Features ✔ Precise Fuel Delivery Designed to meter the correct amount of fuel for consistent combustion and reliable engine performance. ✔ Direct Replacement Design Designed to replace the corresponding fuel injector on compatible Chevrolet and GMC applications. ✔ Smooth Engine Operation Proper injector performance helps support stable idle, smooth acceleration, and consistent combustion. ✔ O-Ring Included Includes the required sealing O-ring for proper installation and fuel-system sealing. ✔ Reliable Performance Designed for dependable fuel atomization and consistent operation across a wide range of driving conditions. Package Includes 1 × ACDelco 12738849 Fuel Injector O-Ring / Sealing Component Installation Notes Verify part number 12738849 before purchasing. Compare the original injector number and connector before installation. Confirm vehicle year, trim, engine, and fuel type. Professional installation is recommended. Lubricate injector O-rings appropriately before installation. Inspect fuel rail connections and electrical connectors before reassembly.