8PCS Fuel Injectors 12668390 For 2014-2017 Chevrolet GMC GM Trucks 4.3L & 5.3L

Fuel Injectors for GM

This set of eight fuel injectors for GM vehicles provides consistent fuel delivery, cross-referencing with part number 12668390.

Overview

These fuel injectors for GM trucks are designed to support efficient fuel delivery in 4.3L and 5.3L engines. Replacing worn fuel injectors helps restore original engine power and optimizes overall fuel efficiency for daily driving and towing. Fleet operators and DIY mechanics use these fuel injectors to resolve misfire issues and rough idling.

Built For Performance

• Eight-piece complete set for uniform cylinder pressure and power output
• Direct injection style nozzle tips for precise spray patterns
• Advanced internal solenoid coils for rapid response times
• Corrosion-resistant metal body housing for extended service life

Fits These Machines

• for Chevrolet Silverado 1500 4.3L and 5.3L 2014 to 2017
• for GMC Sierra 1500 4.3L and 5.3L 2014 to 2017
• for Chevrolet Suburban 5.3L 2015 to 2017
• for Chevrolet Tahoe 5.3L 2015 to 2017
• for GMC Yukon 5.3L 2015 to 2017

On-The-Job Use

• Replacing old fuel injectors during high-mileage engine tune-ups
• Resolving lean fuel codes and check engine light warnings
• Restoring towing capacity and throttle response in work trucks

Specs At A Glance

Good To Know

Q: Do these injectors require new seals for installation? A: These injectors typically come pre-assembled with O-rings, but verify seal integrity before sliding them into the fuel rail.

Q: Will these injectors resolve an engine misfire code? A: Yes, if the misfire is caused by a clogged or failing injector, installing these replacements will resolve the issue.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.