2022 Ford F-350 Super Duty Bulb Sizes (Headlight, Tail, Fog)

As an ASE-certified master technician, I’ve worked on countless Ford trucks, and the 2022 Ford F-350 Super Duty is an incredible piece of machinery. However, dealing with its lighting system can be slightly tricky due to the vast differences between trim levels. Whether you are driving a base XL work truck or a fully loaded Platinum or Limited, knowing your exact bulb sizes is critical before you tear into the front grille or tail light housings.

Below is your ultimate guide to the 2022 Ford F-350 Super Duty bulb sizes, common upgrade considerations, and replacement tips.

Quick Reference: 2022 Ford F-350 Super Duty Bulb Size Chart

Note: The F-350 Super Duty comes with either standard Halogen reflector housings (typically XL, XLT, and base Lariat trims) or factory Quad-Beam LED assemblies (optional on Lariat, standard on King Ranch, Platinum, and Limited). Factory LEDs are integrated, non-replaceable units.

(If your truck is equipped with BLIS (Blind Spot Information System) or the factory LED package, your tail lights, turn signals, and headlights are sealed LED assemblies that must be replaced as a complete unit if they fail.)

LED vs Halogen Upgrade Considerations

Upgrading the standard halogen H13 headlights to aftermarket LED bulbs is a very common modification on the Super Duty, but it is not without its hurdles. Ford’s Body Control Module (BCM) is extremely sensitive to voltage changes.

• CANBUS Errors and Hyper-Flashing: When switching to LEDs for turn signals (3157), the lower resistance will trigger a hyper-flash condition. You will need either CANBUS-ready LED bulbs with built-in resistors, or you’ll need to wire in external load resistors. Alternatively, FORScan software can sometimes be used to disable bulb-out warnings and hyper-flash in the BCM.
• Headlight Flickering: Due to the Pulse Width Modulation (PWM) system used for the Daytime Running Lights (DRL) on the H13 halogen circuit, installing aftermarket LEDs often results in flickering. Ensure your LED kit includes a high-quality CANBUS anti-flicker decoder harness.
• Housing Space: The Super Duty headlight assemblies have dust covers. Make sure the LED bulb’s cooling fan or heatsink allows the dust cap to properly seal, otherwise moisture will quickly ruin the housing.

How to Replace Each Bulb

• Headlights (Low/High Beam): To access the H13 bulbs on halogen models, you have to do a bit of work. It typically requires removing the front grille and unbolting the headlight assemblies completely to access the rear dust caps. Take your time with the retaining clips to avoid snapping plastic tabs.
• Fog Lights: These are much easier. You can access the back of the fog light housings from underneath the front bumper. Simply twist the 9140 bulb counterclockwise, unplug the harness, and swap it out.
• Tail Lights (Brake, Turn, Reverse): Drop the tailgate and remove the two 8mm bolts on the inboard side of the tail light assembly. Pull the housing straight back toward the rear of the truck to dislodge the alignment pins. Twist out the sockets to replace the 3157 or 921 bulbs.
• License Plate Lights: Get under the rear bumper and twist the small sockets out of the bumper assembly to swap the 194 bulbs.
• Third Brake/Cargo Light: Remove the screws securing the housing above the rear window. Pull the housing out carefully to replace the 921 bulbs. Be sure to check the gasket while you're in there (more on that below).

Common Lighting Issues for this Generation

1. Third Brake Light Leak: The 2017+ Super Duty generation (including the 2022) is notorious for the third brake light/cargo light gasket failing. This allows water to leak into the headliner and down the back of the cab. When replacing these bulbs, inspect the foam gasket. Many technicians recommend adding a bead of clear silicone or upgrading to a thicker aftermarket gasket.
2. Moisture in Headlights: Condensation can build up in both halogen and factory LED housings. While a light mist that burns off is normal, standing water means the housing seal or rear dust cover has failed.
3. BLIS Tail Light Failure: If a factory LED tail light with the blind-spot sensor cracks or fails, it requires a complete housing replacement. Be prepared—these assemblies are quite expensive, and the BLIS module usually needs to be transferred over and potentially recalibrated.

Always make sure your upgraded lights are properly aimed, especially on a heavy-duty truck that might be towing or leveled, to avoid blinding oncoming traffic. If you're dealing with complex electrical gremlins or need your BLIS system recalibrated after a light replacement, don't guess—get professional help.

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