The Replacement Part Number(OE Number): 12668390. Fitment: for Chevy Cheyenne 5.3L V8 2017-2018, for Chevy Silverado 1500 4.3L V6 / 5.3L V8 2014-2018, for Chevy Silverado 2500 4.3L V6 2017, for Chevy Silverado 2500 5.3L V8 2014-2018, for Chevy Suburban 5.3L V8 2015-2018, for Chevy Tahoe 5.3L V8 2015-2018, for GMC Sierra 1500 4.3L V6 / 5.3L V8 2014-2018, for GMC Yukon 5.3L V8 2015-2018, for GMC Yukon XL 5.3L V8 2015-2018. Fuel-Efficient Injector: High efficient fuel sprays and high Impedance Coil enable fast start up in the cold environments, low fuel consumption, and good performance. Professional Installation is Highly Recommended: Fuel injectors directly affect the air/fuel ratio for the engine and new fuel injectors do require a new or updated tune. We also suggest that you check the other component of the engine before installation. Package Included: 8 Pcs Fuel Injector; Orifice Type: 6 Holes Disc; Material: Metal and Plastic; Pin Number: 2; Voltage: DC 12V; Flow Rate: Same as . Description:
Made of metal and plastic material it is durable and can use for a long time.
The high impedance fuel injector has been tested and exactly matches the internal coil resistance and fuel flow rate of OEM fuel injector.
This is a non-OEM product, accessory only!

Specification:
O-Rings Included: Yes, preinstalled
Voltage: DC 12V
Orifice Type: 6 Holes Disc
Material: Metal, Plastic
Color: Black
OE Number: 12668390
Pin Number: 2
Flow Rate: Flow Rate: Same as
Dimension: 108.5x49x26mm / 4.27"x1.93"x1.02"(L*W*H)

Fitment:
for Chevy Cheyenne 5.3L V8 2017-2018
for Chevy Silverado 1500 4.3L V6 / 5.3L V8 2014-2018
for Chevy Silverado 2500 4.3L V6 2017
for Chevy Silverado 2500 5.3L V8 2014-2018
for Chevy Suburban 5.3L V8 2015-2018
for Chevy Tahoe 5.3L V8 2015-2018
for GMC Sierra 1500 4.3L V6 / 5.3L V8 2014-2018
for GMC Yukon 5.3L V8 2015-2018
for GMC Yukon XL 5.3L V8 2015-2018

Package Included:
8 Pcs Fuel Injector

Installation:
Step 1. Make sure the engine is cool down. Disconnect the battery.
Step 2. Remove the bolts and brackets from the fuel rail.
Step 3. Disconnect the plug on each injector.
Step 4. Lift the fuel rail and remove the injector from the fuel rail.
Step 5. Press the new injector into the rail. Reattach the fuel rail and put the injectors in their respective holes.
Step 6. Bolt down fuel rail. Reattach fuel line. Plug in injector connectors. Reconnect battery.
Step 7. Double check for fuel leaks before and after starting the engine.