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Last updated: Janaury 25, 2023
In this guide, we'll help you quickly and easily find the replacement bulb size(s) you need for your 2017, 2018, and 2019 Ford and F450 Super Duty (4th Generation). From the low and high beams to the reserve lights and everything in between.
This guide covers all sub-models and trims (King Ranch, Lariat, limited, Platinum, XL, and XLT). During these 3 years, the F450 Super Duty came with either factory halogen bulbs or LED. We make the distinction below in our size guide.
We organized all the bulbs into 5 lighting categories with easy-to-read charts. Select any of the categories below to jump right to the bulb size chart you're looking for:
💡 TIP: Did you know that you can upgrade your headlight and fog light bulbs on your Ford F-450? Get up to 300% more light with LED or HID bulbs. Learn more below the size charts!
️⭐ NOTE: This guide only applies to 2017, 2018, and 2019 F450 Super Duty with the original factory (OEM) assemblies. If you have aftermarket headlights, fog lights, brake lights, etc. you will need different bulb sizes as per the manufacturer's specifications.
🎯 ACCURACY: If you notice any inaccuracies or missing information, please let us know so we can update the guide. Providing accurate and complete information is important to us and our readers.
🚧 IMPORTANT: Automotive light bulbs are vehicle-specific! Follow this guide, review your owner's manual or contact your dealership to make sure you're buying the right bulbs to avoid fitment issues.
Position | Bulb | Type | Upgrade Avail. |
Low Beam Headlights (Dims) | H13 or LED | Halogen | Yes |
High Beam Headlights (Brights) | H13 or LED | Halogen | Yes |
Position | Bulb | Type | Upgrade Avail. |
Fog Light | 9140 | Halogen | Yes |
Position | Bulb | Type | Upgrade Avail. |
Brake Light (Rear) | 3156 or LED | Halogen | Yes |
Brake Light (High-Mounted) | 912 (921) | Halogen | Yes |
Reverse Light* | 7440 or 3156* | Halogen | Yes |
Tail Light | 3156 or LED | Halogen | Yes |
*Compare to original to see which bulb your vehicle requires.
Position | Bulb | Type | Upgrade Avail. |
Turn Signal Bulb (Front)* | 7440 or 4257 or LED | Halogen | Yes |
Turn Signal Bulb (Rear) | 3156 or LED | Halogen | Yes |
Parking Light* | 7440 or 4257 or LED | Halogen | Yes |
Side Marker (Front) | 194 or LED | Halogen | Yes |
Side Marker (Rear) | 3156 or LED | Halogen | Yes |
*Compare to original to see which bulb your vehicle requires.
Position | Bulb | Type | Upgrade Avail. |
Map Light | LED | LED | No |
Dome Light | LED | LED | No |
Engine Compt. Light | LED | LED | No |
License Plate Light | 194 or LED | Halogen | Yes |
Trunk/Cargo Light | 912 (921) | Halogen | Yes |
Year Range | 2017, 2018, 2019 |
Low Beam Headlights | H13 |
High Beam Headlights | H13 |
Fog Light | 9140 |
Brake Light (Rear) | 3156 (3157) |
Brake Light (High-Mounted) | 912 (921) |
Reverse Light* | 7440 or 3156 |
Tail Light | 3156 (3157) |
Turn Signal Bulb (Front)* | 7440 or 4257 |
Turn Signal Bulb (Rear) | 3156 (3157) |
Parking Light* | 7440 or 4257 |
Side Marker (Front) | 194 (168) |
Side Marker (Rear) | 3156 (3157) |
License Plate Light | 194 (168) |
Trunk/Cargo Light | 912 (921) |
*Compare to original to see which bulb your vehicle requires.
Looking to improve the lights on your 2017 to 2019 Ford F-450 with better, brighter, and more durable lighting? At XenonPro.com, we developed LED and HID bulbs that fit right into your vehicle. With the same design and plugs, our bulbs are incredibly easy to install and will improve your light output by up to 300%.
Discover our award-winning lighting products backed by our Lifetime Warranty:
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Check out this great video on how to change your headlight bulbs and assemblies on your 2017 to 2019 Ford F-450. This video is for a 2020 F250 but it will work for this truck as well. You'll need the following tools to complete this job:
Need more information about bulb sizes, how to change the bulbs, or simply need the owner's manual? Find it below:
Yes. This guide applies to all sub-models and trims (King Ranch, Lariat, limited, Platinum, XL, and XLT) for the 2017-2019 Ford F-450.
If you do a lot of nighttime driving or have difficulty seeing at night, we recommend upgrading from halogen to either LED or HID bulbs. They will produce more light and last longer than replacement bulbs.
Discover how you can put LED or HID bulbs in your factory headlights
Yes, so long as they are halogens. Changing halogen bulbs is quite easy for the most part. We strongly advise finding How-To videos online for the specific bulb(s) you wish to change and consult the Owner's Manual for additional help.
If your vehicle has factory LEDs, you will need to visit your dealership to have them changed.
No. Aftermarket assemblies typically use different bulb sizes. Consult with the assembly manufacturer for the right bulb size(s).
Sources:
Disclaimer: The information contained on this page is provided free of charge to our visitors. It was prepared to the best of our abilities and with all the information available to us at the time of writing. We reserve the right to change, remove or update any information contained on this page at any time and without notice to improve its accuracy. The most reliable method to determine the bulb size is by pulling your actual bulb(s) and reading the part number indicated directly on the bulb. The information compiled on this page comes with no guarantees or warranties.