
iFunyLED PSX26W 12278 LED Fog Light Bulbs, 12278C1 H28W P...
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Used for: Fog Light Bulb Front
Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam, Daytime Running Light Bulb(with halogen headlights)
Used for: Headlight Bulb Low Beam(with halogen headlights)
Used for: Headlight Bulb Low Beam(with HID headlights)
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Turn Signal Light Bulb Front
Used for: Turn Signal Light Bulb Rear
This page helps you find the correct bulb sizes for the 2020 Chevrolet Tahoe by lighting position, so you can match the right replacement to the right lamp. Whether you are changing a headlight, reverse light, license plate light, or an interior bulb, checking the exact location first makes the job faster and helps avoid ordering the wrong part.
The 2020 Chevrolet Tahoe uses a mix of LED, halogen, and HID-related bulb setups depending on the lamp position and equipment level. That means the correct bulb can change by function, and in some cases by trim or lighting package, so this guide is organized to help you verify each bulb size before you buy or install anything.
Fitment can vary by market, trim, body style, and lighting package, so always compare the bulb chart with your Tahoe’s current setup before ordering. Some positions use LED assemblies, while others use replaceable bulbs, and headlight fitment can differ between halogen and HID-equipped models. If you are considering aftermarket LED or HID conversions, make sure the bulb base, housing design, and beam pattern are compatible with your vehicle and local regulations. The safest approach is to check the bulb already installed in the vehicle or confirm the part number from the owner’s manual or the existing lamp before purchase.
Halogen-equipped 2020 Chevrolet Tahoe models use an H11 bulb for the low beam headlight.
Tahoe models with HID headlights use a D3S bulb for the low beam.
The high beam headlight bulb is 9005.
The front turn signal bulb is 7440A.
The rear turn signal bulb is 7440.
The brake light bulb is 7440R.
The back up reverse light bulb is 921.
The license plate light bulb is listed as 2825, 98.
The front fog light bulb is PSX26W, 12278.
Yes. The page lists LED fitment for the parking light bulb, front side marker light bulb, and rear side marker light bulb.
Yes. The chart lists LED fitment for the trunk or cargo area light, dome light, map light, and interior door light.
The center high mount stop light bulb is listed as LED.
No. The daytime running light bulb differs by headlight type: models with HID headlights use an LED setup, while models with halogen headlights use a 9005 bulb.
Yes. Because trim and lighting package differences can affect fitment, it is best to confirm the installed bulb or match the vehicle’s exact lighting configuration before purchasing.