ACDelco 12661071 Fuel Injector

Part Number
Fuel Injector

Fits: 10-16 Chevrolet Express 2500, 10-16 Chevrolet Express 3500, 10-16 Chevrolet Express 4500, 10-16 GMC Savana 2500, 10-16 GMC Savana 3500, 10-16 GMC Savana 4500, 11-16 Chevrolet Silverado 2500 HD, 11-16 Chevrolet Silverado 3500 HD, 11-16 GMC Sierra 2500 HD, 11-16 GMC Sierra 3500 HD

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ACDelco GM Original Equipment Fuel Injectors are electro-magnetic valves that meter fuel into the engine's intake manifold or cylinders for combustion, and are GM-recommended replacements for your vehicle's original components. The engine control module (ECM) operates the injector by applying an electric current to the injector solenoid winding, causing the needle valve to open, and allowing pressurized fuel to be atomized into the intake airstream. These original equipment fuel injectors have been manufactured to fit your GM vehicle, providing the same performance, durability, and service life you expect from General Motors. ? WARNING: Cancer and Reproductive Harm -



  • Allows for a quick throttle response
  • Assists in cold engine starts
  • Atomizes fuel into the engine's intake manifold or cylinders, as part of the fuel and engine management system
  • Chevrolet;Chevrolet;GMC;GMC
  • GM-recommended replacement part for your GM vehicle's original factory component
  • Manufactured to GM OE specification for fit, form, and function
  • Offering the quality, reliability, and durability of GM OE
  • This part requires programming and/or special setup procedures. GM Service Information describes the procedures and special tools needed to ensure proper operation in the vehicle


Body MaterialStainless Steel
Connector GenderFemale
Connector ShapeRectangle
Fuel Injection TypeIndirect Fuel Injection
Gasket Or Seal IncludedYes
Height (in)3.6
Length (in)6.95
Meets or Exceeds Original Equipment Manufacture SpecificationsYes
Mounting Hardware IncludedYes
Programming RequiredYes
Retainer Clips IncludedYes
Terminal GenderMale
Terminal Quantity2
Terminal TypeBlade Pin
Volume (cu in)426.59 cu in
Weight (lb)0.67
Width (in)17.05




  • 2011-2016 Chevrolet Silverado 3500 HD
  • 2010-2016 Chevrolet Express 3500
  • 2010-2016 GMC Savana 3500
  • 2010-2016 Chevrolet Express 4500
  • 2011-2016 GMC Sierra 3500 HD
  • 2010-2016 GMC Savana 4500
  • 2010-2016 GMC Savana 2500
  • 2011-2016 GMC Sierra 2500 HD
  • 2010-2016 Chevrolet Express 2500
  • 2011-2016 Chevrolet Silverado 2500 HD
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