
HELLA H16 Standard Halogen Bulb
$13.21
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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam and Low Beam(with halogen headlights)
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Center High Mount Stop Light Bulb, Turn Signal Light Bulb Rear, Trunk or Cargo Area Light
Used for: Daytime Running Light Bulb(with halogen headlights), Parking Light Bulb(with halogen headlights), Turn Signal Light Bulb Front(with halogen headlights)
Used for: License Plate Light Bulb, Dome Light Bulb, Door Mirror Illumination Light Bulb, Map Light Bulb
Used for: License Plate Light Bulb, Dome Light Bulb, Door Mirror Illumination Light Bulb, Map Light Bulb
Used for: Side Marker Light Bulb Front
Used for: Side Marker Light Bulb Rear
Used for: Glove Box Light Bulb
Used for: Vanity Mirror Light Bulb
This 2021 Toyota Tundra bulb size guide is designed to help you verify the correct bulbs by lighting position, so you can match the right part before you buy. Because the Tundra could be equipped with different lighting setups, the bulb list on this page separates front, rear, interior, and cargo-area locations to make fitment easier.
Use this page as a quick reference for common 2021 Toyota Tundra exterior and interior bulbs, including headlight, turn signal, parking light, brake light, license plate light, dome light, and more. It is especially useful when you need to confirm whether your truck has LED headlights or halogen headlights, since the bulb sizes differ by setup.
Fitment can vary by trim, lighting package, market, and body style, so always compare the bulb position on your truck with the chart before ordering. The 2021 Tundra may use LED components in some headlight-equipped configurations and halogen bulbs in others, and aftermarket conversions can change what is installed even if the vehicle originally came with a different setup. If you are replacing a bulb, it is smart to remove the old one and check the base and markings first, especially for items like the fog light, rear signal, and interior bulbs. That extra step helps avoid ordering the wrong bulb when the installed part has been changed previously.
For 2021 Toyota Tundra models with halogen headlights, the high beam and low beam bulb is 9003.
For 2021 Toyota Tundra models with LED headlights, the headlight high beam and low beam bulb is listed as LED rather than a standard replaceable halogen bulb.
The front turn signal bulb for halogen-headlight 2021 Toyota Tundra models is 4157NA.
The front turn signal bulb for LED-headlight 2021 Toyota Tundra models is listed as LED.
The rear turn signal light bulb is 921 on the 2021 Toyota Tundra.
The brake light bulb and the tail light bulb are both listed as 3157R on the 2021 Toyota Tundra.
The back up reverse light bulb is 7440.
The license plate light bulb sizes are 168 and 917.
The dome light bulb and map light bulb are 168 or 917, and the vanity mirror light bulb is 7065.
The glove box light bulb is 2721.
The front fog light bulb is H16.
Not always. Trim level, lighting package, market, and body style can change the bulb setup, especially for headlight assemblies and exterior lighting.
Yes. Checking the installed bulb is a good idea because previous owners may have installed aftermarket bulbs or converted the lighting setup, which can affect fitment.
Yes. This page includes the trunk or cargo area light bulb, dome light bulb, map light bulb, door mirror illumination bulb, glove box bulb, and vanity mirror bulb for the 2021 Toyota Tundra.