
SEALIGHT H10 LED Fog Light Bulbs or DRL, 12000LM 9140 914...
$17.99
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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam and Low Beam
Used for: Back Up Light Bulb
Used for: Brake Light Bulb, Side Marker Light Bulb Rear, Tail Light Bulb, Turn Signal Light Bulb Rear
Used for: Center High Mount Stop Light Bulb, Trunk or Cargo Area Light
Used for: License Plate Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front
The 2018 Ford F-350 is a heavy-duty truck with several lighting setups depending on trim, cab style, body style, and market. This page helps you verify bulb sizes by lighting position so you can match the correct replacement for headlights, tail lights, marker lights, interior lamps, and cargo or utility lighting.
Use the bulb chart below as a quick reference before buying replacement bulbs. Whether you are changing a single exterior bulb or updating multiple interior lights, checking the bulb size by location can save time and help you avoid ordering the wrong part for your 2018 F-350.
Fitment can vary on the 2018 F-350, especially when comparing different trims, lighting packages, and halogen versus LED-equipped vehicles. Some positions may use standard bulbs on one truck and LED assemblies or LED-style replacements on another, and aftermarket conversions can change what actually fits in the housing. Before you purchase anything, it is smart to inspect the installed bulb, confirm the socket style, and compare it with the chart so you know whether you need a direct replacement or a conversion-compatible option.
The chart lists H13 for the headlight high beam and low beam position on the 2018 Ford F-350. Because lighting packages can vary, confirm the bulb type on the truck before ordering.
Yes, the chart shows LED for both the dome light bulb and the map light bulb. That makes it easier to replace interior lighting if your truck uses the listed setup.
The license plate light bulb is listed as 168. This is a common small wedge-style bulb used for plate illumination.
Both the front turn signal light and the front parking light are listed as 7444NA. If your truck has a different package or an LED conversion, verify the installed bulb first.
The front side marker light bulb is listed as 2825. This position is separate from the front turn signal and parking light locations.
The back up light bulb is listed as 7440. Check the socket and lamp housing if your truck has been modified or fitted with aftermarket lighting.
The front fog light bulb is listed as 9140 LED. Since fog light setups can differ by trim and package, it is a good idea to confirm the exact lamp style on your vehicle.
The chart lists 3157 for the brake light, tail light, rear turn signal light, and rear side marker light positions. That means several rear lighting functions on the 2018 F-350 share the same bulb size.
The center high mount stop light bulb is listed as 912. This is the third brake light mounted higher on the cab or rear of the truck, depending on body style.
The trunk or cargo area light is also listed as 912. On a truck like the F-350, this may apply to a cargo or utility lighting position rather than a traditional trunk.
In many cases, yes, but the result depends on the housing, connector, and whether the truck was originally designed for halogen or LED lighting. Some LED conversions may need additional parts or may not be street-legal in every location.
Yes. Checking the installed bulb is one of the best ways to avoid fitment mistakes, especially on a 2018 F-350 where trim and lighting package differences can affect bulb type.