2018 GMC Terrain Headlight Bulb Size
By clicking the link you will be redirected to Amazon. The aftermarket bulbs & headlights below may improve the illumination of your vehicle and make it stand out from the crowd.
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Fog Light Bulb Front - H11 LED
Fog Light Bulb Front - H8 LED
Headlight Bulb High Beam and Low Beam(with HID headlights) - D5S
Turn Signal Light Bulb Front - 7444NA
License Plate Light Bulb - 2825
Parking Light Bulb - 7444NA
Back Up Reverse Light Bulb - 921
Turn Signal Light Bulb Rear(with HID headlights) - 7440
The 2018 GMC Terrain bulb size chart specifies the recommended lamp part numbers and types for all positions of its electrical system, like headlights, fog lights, brake lights, side markers, etc. If you want to upgrade the headlights, the aftermarket bulb you select has to be the exact size your 2018 GMC Terrain requires to fit into the housing and match the wattage and voltage specifications. Pay special attention to the marking and make sure the bulb is “DOT” compliant to avoid legal issues.