Forward Lighting
Low/High Beam Headlight Bulb Size (With Factory HID Headlights): D5
Low/High Beam Headlight Bulb Size (With Factory LED Headlights): Factory LED (Not Replaceable)
Fog Light Bulb Size: Factory LED (Not Replaceable)
Rear Lighting
Reverse Light Bulb Size: 921
Brake Light Bulb Size: Factory LED (Not Replaceable)
License Plate Light Bulb Size: 194
Interior Lighting
Map Light Bulb Size: Factory LED (Not Replaceable)
Dome Light Bulb Size: Factory LED (Not Replaceable)
Cargo Light Bulb Size: 921
Third Brake Light Bulb Size: 921


About our F1 Series LED Bulbs
Our F1 Series LED Headlight bulbs are designed to give you more light output while maintaining a safe beam pattern for oncoming traffic. Your factory cut off line will stay at the same level but the brightness below it will shine brighter and farther down the road!
IT'S VERY IMPORTANT THAT YOU KNOW THE BULB SIZE NEEDED FOR YOUR VEHICLE BEFORE ORDERING. WE HAVE THEM LISTED IN OUR VEHICLE SEARCH OPTION BUT FOR MORE CLARIFICATION WE HAVE GIVEN YOU THIS SPECIFIC LIST FOR YOUR VEHICLE.
This Light Bulb Size Diagram is for Chevrolet Silverado and GMC Sierra 1500 Trucks. Including Years 2016, 2017 and 2018.
Every bulb we have listed for these trucks have been tested by us at FUZED LED and they are completely plug and play. No extra resistors or wiring required AND Extremely bright!

