Ford F-350 2021 Bulb Size

Bulb size chart

Fog Light Bulb Front - 9140 LED
Headlight Bulb High Beam and Low Beam - H13, LED
Back Up Light Bulb - 7440
Brake Light Bulb - 3157
Center High Mount Stop Light Bulb - 912
License Plate Light Bulb - 168
Parking Light Bulb - 7444NA
Side Marker Light Bulb Front - 2825
Side Marker Light Bulb Rear - 3157
Tail Light Bulb - 3157
Turn Signal Light Bulb Front - 7444NA
Turn Signal Light Bulb Rear - 3157
Dome Light Bulb - LED
Engine Compartment Light Bulb - LED
Map Light Bulb - LED
Trunk or Cargo Area Light - 912

9140 LED Bulbs

Used for: Fog Light Bulb Front

View all 2 replacement options for size 9140 LED →

H13 Bulbs

Used for: Headlight Bulb High Beam and Low Beam

KATANA H13 LED Headlight Bulbs, Super Bright

KATANA H13 LED Headlight Bulbs, Super Bright

The KATANA H13 LED Bulbs are designed for easy installation, with a 1:1 mini design that fits almost exactly like halogen bulbs. There's no need for any tools or modifications, and installation can be done in just 10 minutes, making it a hassle-free upgrade. Built to last, these bulbs feature an aviation aluminum body and an ultra-high-speed fan for maximum cooling. The 360° beam angle ensures a perfect beam pattern with no dark spots, making it ideal for use in rainy, foggy, or snowy conditions. The in-built upgraded CANBUS system is compatible with 99% of vehicles, and there will be no error codes displayed on your vehicle's computer. Upgrade your vehicle's lighting system with the KATANA H13 LED Headlight Bulbs and enjoy a brighter, safer, and more confident driving experience.

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TECHMAX H13 LED Headlight Bulb

TECHMAX H13 LED Headlight Bulb

Upgrade your car's lighting with the TECHMAX H13 LED Headlight Bulb, and enjoy a safer and more comfortable driving experience with brighter and more uniform lighting. With a gentle white light that replaces the dim yellow halogen lamp, you'll enjoy a clearer and brighter driving experience. The white light emitted by these bulbs illuminates the road and enhances visibility. Thanks to the windless direct plug-in design, the TECHMAX H13 LED Headlight Bulb is easy to install and light up when plugged in. This unique design also enhances the driving experience by providing a quiet and comfortable ride.

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View all 15 replacement options for size H13 →

7440 Bulbs

Used for: Back Up Light Bulb

View all 8 replacement options for size 7440 →

3157 Bulbs

Used for: Brake Light Bulb, Side Marker Light Bulb Rear, Tail Light Bulb, Turn Signal Light Bulb Rear

Alla Lighting 3157 Red LED Bulbs (Brake, Tail Lights, Turn Signal)

Alla Lighting 3157 Red LED Bulbs (Brake, Tail Lights, Tur...

Product benefits and features: Each bulb is quipped with 39pcs high power and high illumination 2835 SMD LEDs; Built-in smart IC driver for stable current control and longer lifespan; Equipped with projector-lens for fully 360° light output. Equipped with aluminum heat sink for the best heat dissipation. Especially designed for replacing back-up reverse lights, turn signal lights, brake tail lights, daytime running lights(DRL) lamps.

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KAKEMONO 3157 LED Amber Yellow Light Bulb

KAKEMONO 3157 LED Amber Yellow Light Bulb

Improve your car's lighting with the brilliant combination of brightness, energy efficiency, and broad compatibility offered by KAKEMONO BrightBeam 3157 LED Amber Yellow Bulbs. Built for multiple functions, these bulbs perform expertly to promise safety and style in each ride. BrightBeam LED bulbs are good for brake lights, turn signals, reverse lights, tail lights, and much more. Amber yellow in color and with a bright 400 lumens output, it gives better visibility and makes your vehicle more noticeable to others to improve safety on the road. Replacing traditional 40W halogen bulbs, these 4W LED bulbs reduce power consumption by a large margin while keeping very good brightness. Ceramic and aluminum housing allows for efficient heat dissipation, contributing to a longer lifespan and consistent performance over time. With a wide voltage input range of AC10-18V/DC10-30V, they are stable and work well on different vehicle models. They boast a 360° beam angle with no dark spots, providing super uniform light distribution. Plug-and-play installation, besides, makes upgrading your lighting a breeze. Note that some vehicles may require a load resistor to prevent hyper-flashing or dashboard error codes.

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View all 12 replacement options for size 3157 →

912 Bulbs

Used for: Center High Mount Stop Light Bulb, Trunk or Cargo Area Light

Senzeal 912 LED White Bulb

Senzeal 912 LED White Bulb

Upgrade your vehicle’s reverse lighting with Senzeal T15 LED Bulbs, delivering powerful illumination exactly where you need it. Perfect for all car models requiring T15, 912, or 921 bulbs, these LEDs are the ideal replacement for your reverse lights, providing a significant boost in brightness and safety. With just 3 watts of power, these bulbs produce an impressive 180 lumens of crisp 6000K white light, making them brighter and more efficient than traditional halogen bulbs. Built with high-power 3030 SMD chips and a 360-degree lighting angle, they ensure no blind spots and provide fuller, more consistent illumination. Designed for easy installation, these plug-and-play bulbs are compatible with 98% of vehicles, thanks to their built-in CANBUS system. The intelligent temperature control driver and PC light cover protect the LED chips, extending the bulb’s lifespan and ensuring reliable performance.

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View all 14 replacement options for size 912 →

168 Bulbs

Used for: License Plate Light Bulb

View all 17 replacement options for size 168 →

7444NA Bulbs

Used for: Parking Light Bulb, Turn Signal Light Bulb Front

TUINCYN 7444NA W21W LED White Light Bulb

TUINCYN 7444NA W21W LED White Light Bulb

Introducing the TUINCYN 7444NA W21W LED White Light Bulb, a reliable and easy-to-install lighting solution for your car. With its advanced features and impressive specifications, this bulb is designed to provide bright and efficient illumination, enhancing your driving experience. Installation is a breeze with the TUINCYN 7444NA W21W LED White Light Bulb. It is a plug and play bulb, which means no complicated wiring or modifications are needed. Simply remove your old bulb and insert the TUINCYN LED bulb into the socket for an instant upgrade. It's a hassle-free process that saves you time and effort. The light body structure of this bulb is designed for durability and longevity. With point-to-point welding, the light body is firm and not easily damaged. This ensures that the bulb can withstand various road conditions and vibrations, providing you with a reliable lighting solution that will last. Experience exceptional lighting coverage with the 360-degree beam angle design of the TUINCYN LED bulb. This design ensures that every corner is illuminated, leaving no dark spots or shadows. Whether you're driving in the city or on winding roads, you can rely on the TUINCYN LED bulb to provide clear and consistent lighting. With its faster on/off response time, the TUINCYN 7444NA W21W LED White Light Bulb delivers instant illumination when activated. This quick response ensures that other drivers can easily see your vehicle, enhancing safety on the road.

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View all 11 replacement options for size 7444NA →

2825 Bulbs

Used for: Side Marker Light Bulb Front

View all 12 replacement options for size 2825 →

This page for the 2021 Ford F-350 helps you verify bulb sizes by lighting position, so you can match the correct replacement before you buy. Whether you are changing a headlight, a marker lamp, or an interior bulb, using the right socket and bulb type saves time and avoids fitment problems.

The 2021 Ford F-350 uses different bulbs depending on where the light is located, and some positions may vary with trim, body style, or lighting package. The chart below is organized by lighting location to make it easier to identify the correct bulb for each exterior and interior lamp on your truck.

Before ordering, compare the bulb listed on this page with the bulb already installed in your truck, especially if your F-350 has factory LED lighting, an upgraded package, or an aftermarket conversion. Trim and market differences can change the exact fitment, and halogen-to-LED swaps may require different bulbs, resistors, or housings to work properly. Checking the existing bulb and connector before purchase is the best way to avoid returns and ensure the replacement fits and functions as expected.

FAQ

What bulb does the 2021 Ford F-350 use for the high beam and low beam headlights?

The chart on this page lists the headlight bulb as H13 for the high beam and low beam position. If your truck has a different factory lighting setup, confirm the installed bulb before ordering.

Are the fog light bulbs on the 2021 Ford F-350 LED?

Yes, the fog light bulb listed for the front fog lamp position is 9140 LED. If your truck was modified or has a different package, verify the actual bulb and connector first.

What is the license plate bulb size for the 2021 Ford F-350?

The license plate light bulb is listed as 168. This is a common small wedge bulb used in plate lamps and other low-output lighting positions.

What bulb fits the front turn signal and parking light on this truck?

The front turn signal bulb and front parking light bulb are both listed as 7444NA. That means the same bulb type is used in both front positions on this page.

What bulb is used for the front side marker light?

The front side marker light bulb is listed as 2825. Side marker fitment can vary with trim and lighting package, so it is still smart to confirm the installed bulb.

What bulb does the rear back-up light use on the 2021 Ford F-350?

The rear back-up light bulb is listed as 7440. If your truck has been converted to LED or has a special rear lamp assembly, check the bulb already in the housing.

What bulb is used for the brake and tail lights?

The brake light bulb and tail light bulb are both listed as 3157. The same bulb type is also shown for the rear turn signal and rear side marker positions on this page.

What bulb fits the rear turn signal on this model year?

The rear turn signal light bulb is listed as 3157. Because rear lamp designs can differ by body style, confirm the bulb in the vehicle if your truck has unusual lighting equipment.

What bulb is used for the center high mount stop light?

The center high mount stop light bulb is listed as 912. This bulb is commonly used in stop lamp applications, but the exact lamp assembly should still be checked before replacement.

What bulb fits the dome light and map light in the cab?

The dome light bulb and map light bulb are both listed as LED. Interior lighting can vary by cab configuration, so checking the installed bulb is recommended before buying replacements.

What bulb is used for the engine compartment light and cargo area light?

The engine compartment light bulb is listed as LED, and the trunk or cargo area light is listed as 912. These positions may differ depending on body style and equipment.

Can I switch the 2021 Ford F-350 from halogen to LED bulbs?

Yes, many owners do aftermarket LED conversions, but the result depends on the lamp housing, connector, and vehicle electronics. Some conversions may need additional parts to prevent flicker, warning messages, or poor beam pattern.

Ford F-350 Bulb Size by Year