
Sealight XENOWER XF1 LED Light Bulbs
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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam, Headlight Bulb Low Beam
Used for: Back Up Light Bulb
Used for: Brake Light Bulb, Daytime Running Light Bulb, Tail Light Bulb, Turn Signal Light Bulb Rear
Used for: Parking Light Bulb, Turn Signal Light Bulb Front(Compare to original - Option 1)
Used for: Turn Signal Light Bulb Front(Compare to original - Option 2)
Used for: Automatic Transmission Indicator Light Bulb
Used for: Automatic Transmission Indicator Light Bulb
Used for: Dome Light Bulb
Used for: HVAC Temperature Control Bulb
This 2021 Jeep Gladiator bulb size guide helps you verify the correct bulbs by lighting position, so you can match the right replacement before you buy. Whether you are changing a headlight, tail light, interior bulb, or a small indicator lamp, the goal is to make fitment easier and reduce guesswork.
The 2021 Jeep Gladiator uses a mix of LED and replaceable bulb types depending on the location, trim, and lighting package. Use this page as a quick reference for common exterior and interior bulb positions, including headlamps, brake lights, turn signals, license plate lights, and cabin lighting.
Fitment can vary by trim, market, and body style, so it is smart to compare the bulb listed for your exact lighting position with the bulb already installed in your Jeep. Some 2021 Gladiator models use halogen-style bulbs in certain spots, while others may have LED assemblies or LED-equipped options from the factory. If you are converting to aftermarket LED bulbs, check polarity, connector style, and space inside the housing, since some upgrades may need resistors or adapters to prevent warning lights or fast flashing. Before ordering, confirm the installed bulb number by removing the old bulb and matching it to the part in hand whenever possible.
The 2021 Jeep Gladiator low beam headlight bulb is listed as H13.
The 2021 Jeep Gladiator high beam headlight bulb is also listed as H13.
There are two front turn signal listings on this page: 7442NA for one fitment option and 7440A for another. Check your installed bulb and lighting package before ordering.
The rear turn signal light bulb is listed as 7443.
Both the brake light bulb and the tail light bulb are listed as 7443 for the 2021 Jeep Gladiator.
The daytime running light bulb is listed as 7443.
The backup light bulb is listed as 921.
The license plate light bulb is listed as LED on this page, so the assembly is shown as LED rather than a standard replaceable bulb number.
The center high mount stop light bulb is listed as LED.
The dome light bulb is listed as 912.
The HVAC temperature control bulb is listed as 194.
The automatic transmission indicator light bulb is listed as 2825 or 658.
The rear side marker light bulb is listed as LED.
The parking light bulb is listed as 7442NA.
The front fog light bulb is listed as 2504 LED.
Not always. Trim level, market, body style, and lighting package can change the bulb type or whether the light is a bulb or an LED assembly.
Yes. Checking the installed bulb is the best way to confirm fitment, especially if your Gladiator has an option package or a previous owner changed the lighting.