Chevrolet Tahoe 2021 Bulb Size

Bulb size chart

Fog Light Bulb Front - 12278, PSX26W
Headlight Bulb High Beam - 9005
Headlight Bulb Low Beam(with halogen headlights) - H11
Headlight Bulb Low Beam(with HID headlights) - D3S
Back Up Reverse Light Bulb - 921
Brake Light Bulb - 7440R
Center High Mount Stop Light Bulb - LED
Daytime Running Light Bulb(with halogen headlights) - 9005
Daytime Running Light Bulb(with HID headlights) - LED
License Plate Light Bulb - 2825, 98
Parking Light Bulb - LED
Side Marker Light Bulb Front - LED
Side Marker Light Bulb Rear - LED
Tail Light Bulb - LED
Turn Signal Light Bulb Front - 7440A
Turn Signal Light Bulb Rear - 7440
Dome Light Bulb - LED
Interior Door Light Bulb - LED
Map Light Bulb - LED
Trunk or Cargo Area Light - LED

12278 Bulbs

Used for: Fog Light Bulb Front

View all 10 replacement options for size 12278 →

PSX26W Bulbs

Used for: Fog Light Bulb Front

View all 9 replacement options for size PSX26W →

9005 Bulbs

Used for: Headlight Bulb High Beam, Daytime Running Light Bulb(with halogen headlights)

View all 30 replacement options for size 9005 →

H11 Bulbs

Used for: Headlight Bulb Low Beam(with halogen headlights)

PIAA 15211 H11 Xtreme White Plus

PIAA 15211 H11 Xtreme White Plus

Xtreme White Hybrid bulbs are worth it if you want the lightest possible. They're brighter and provide better contrast versus stock, allowing drivers to see farther with greater safety on dark roads or high traffic areas like city streets at night time - because these lights don't have any filters that would interfere with their visibility! Made from quality materials such as quartz glass alongside our special alloy filaments which reflect heat much more efficiently than common metals do; this means they will last longer without getting too hot and eventually cracking under pressure (which can lead us to an accident).

$73.19

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View all 24 replacement options for size H11 →

D3S Bulbs

Used for: Headlight Bulb Low Beam(with HID headlights)

Philips D3S Standard Authentic Xenon HID

Philips D3S Standard Authentic Xenon HID

POWERFUL LIGHT FROM XENON HID BULBS OFFER MAXIMUM SAFETY: Xenon HID (High Intensity Discharge) headlight bulbs offer twice as much light* for safer driving in all conditions while consuming 50% less power. The intense white light produced by the Xenon HID lamps is comparable to daylight. Studies have demonstrated that xenon automotive lighting helps drivers to concentrate on the road and to distinguish obstacles and road signs much faster than traditional lamps. *Compared to standard halogen bulbs

$79.99

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OSRAM XENARC D3S HID Xenon Headlight bulbs 66340

OSRAM XENARC D3S HID Xenon Headlight bulbs 66340

 Extremely Long Life with precise light distribution & consistent performance - can efficiently work for 4000 hours.  All HID lights discolor to get whiter/bluer over usage & dim down. When comparing this NEW bulb against your OLD bulb, the NEW bulb may look warmer in color, which is normal. Replacing in PAIR is suggested. Extremely Long Life with precise light distribution & consistent performance. 100% legal for On/Off-road use | Replace in pairs for optimal performance.

$108.99

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View all 10 replacement options for size D3S →

921 Bulbs

Used for: Back Up Reverse Light Bulb

View all 14 replacement options for size 921 →

7440R Bulbs

Used for: Brake Light Bulb

View all 8 replacement options for size 7440R →

2825 Bulbs

Used for: License Plate Light Bulb

View all 12 replacement options for size 2825 →

98 Bulbs

Used for: License Plate Light Bulb

View all 10 replacement options for size 98 →

7440A Bulbs

Used for: Turn Signal Light Bulb Front

TUINCYN Amber Yellow 7440A/7440NA/7440 LED Bulb

TUINCYN Amber Yellow 7440A/7440NA/7440 LED Bulb

Amber 7440 Bulb Used For Turn Signals Light Bulb, Including Front And Rear Turn Signals, Not For Other Position. CANBUS Ready For 98% Vehicle, No Interference, No Hyperflash, And No Error Code, Donnot Need Extra Load Resistors. Plug& Play Bulb Easily To Be Installed Within 10 Mins.  Premium quality 6063 aluminum alloy material ensure the light bulb with good heat dissipation and bring low energy consumption. IP68 waterproof and good construction ensure the bulb works well between -40 degree~ 80 degree environment.

$19.99

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View all 6 replacement options for size 7440A →

7440 Bulbs

Used for: Turn Signal Light Bulb Rear

View all 8 replacement options for size 7440 →

The 2021 Chevrolet Tahoe uses different bulb types depending on the lighting position, trim, and headlight package, so it helps to verify each socket before buying replacements. This page is organized by location to make it easier to match the correct bulb size for your Tahoe’s exterior and interior lights.

Whether you are replacing a headlight, brake light, reverse light, or cabin bulb, the 2021 Chevrolet Tahoe bulb chart on this page lets you confirm the fit by lighting position. That is especially useful on a full-size SUV like the Tahoe, where halogen and HID setups can use different bulbs in the same model year.

Fitment can vary by market, body style, and equipment package, so always compare the bulb listed here with the one already installed in your vehicle. The 2021 Tahoe may use different bulbs for halogen versus HID headlight setups, and some exterior lights can also change with factory LED or optional lighting packages. If you are considering an aftermarket LED conversion, make sure the bulb base, connector, and housing depth are compatible, since not every LED replacement will fit or function correctly in every socket. The safest approach is to check the installed bulb before ordering, especially for lights like the low beam, DRL, fog light, and turn signal positions.

FAQ

What bulb size does the 2021 Chevrolet Tahoe use for the low beam headlight?

The low beam bulb depends on the headlight package. 2021 Chevrolet Tahoe models with HID headlights use D3S low beam bulbs, while models with halogen headlights use H11 low beam bulbs.

What bulb size does the 2021 Chevrolet Tahoe use for the high beam headlight?

The high beam headlight bulb for the 2021 Chevrolet Tahoe is 9005.

Does the daytime running light bulb change on the 2021 Tahoe?

Yes. The daytime running light bulb depends on the headlight setup. Tahoe models with HID headlights use an LED DRL setup, while models with halogen headlights use a 9005 bulb for the daytime running light position.

What is the rear turn signal bulb size on a 2021 Chevrolet Tahoe?

The rear turn signal bulb size is 7440 for the 2021 Chevrolet Tahoe.

What bulb does the front turn signal use on this Tahoe?

The front turn signal light bulb is 7440A on the 2021 Chevrolet Tahoe.

What bulb size is used for the reverse lights?

The back up reverse light bulb on the 2021 Chevrolet Tahoe is 921.

What bulb size is used for the brake lights?

The brake light bulb is 7440R on the 2021 Chevrolet Tahoe.

What bulb size is used for the fog lights?

The front fog light bulb can be PSX26W or 12278, depending on the vehicle’s equipment.

What bulb size is used for the license plate lights?

The license plate light bulb can be 2825 or 98 on the 2021 Chevrolet Tahoe.

Are the interior bulbs on the 2021 Tahoe listed as LED?

Yes. The chart on this page lists several interior positions as LED, including the dome light, map light, interior door light, trunk or cargo area light, and center high mount stop light.

Can I use an LED replacement bulb in place of the factory bulb?

Often yes, but fitment and function depend on the socket, housing, and electronics. Some LED replacements may need to match the original bulb base exactly, and some may not work properly without the right load or compatibility.

Why should I check the installed bulb before buying a replacement?

Because trim and lighting package differences can change the bulb type on the 2021 Chevrolet Tahoe. Checking the installed bulb helps confirm the correct size and avoids ordering the wrong part.

Chevrolet Tahoe Bulb Size by Year