
SEALIGHT H10/9145/9140 LED Fog Light Bulbs, 6000K Xenon W...
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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, Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Parking Light Bulb, Tail Light Bulb, Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
Used for: License Plate Light Bulb, Courtesy Light Bulb
Used for: Side Marker Light Bulb Front
Used for: Check Engine Light Bulb, High Beam Indicator Light Bulb, Parking Brake Indicator Light Bulb, Turn Signal Indicator Light Bulb
Used for: Dome Light Bulb
Used for: Dome Light Bulb, Engine Compartment Light Bulb
Used for: Glove Box Light Bulb
Used for: Instrument Panel Light Bulb
Used for: Trunk or Cargo Area Light
This page covers bulb sizes for the 2003 Ford F-250 and helps you verify the correct bulb by lighting position. Whether you are replacing a burned-out lamp or upgrading a working bulb, matching the bulb to the exact location is the safest way to avoid fitment mistakes.
Use the chart to check common exterior and interior lighting points such as the headlights, tail lights, brake lights, turn signals, dome light, license plate light, and glove box light. The 2003 Ford F-250 can use different bulbs depending on trim, body style, and lighting package, so confirming each position before buying is important.
Fitment can vary by trim, package, and market, so always compare the bulb in the vehicle with the listing before ordering. Some positions may use halogen bulbs from the factory, while others may already have LED replacements or aftermarket conversions installed. If your truck has been modified, especially with LED headlight or fog light upgrades, the bulb size alone may not tell the whole story. Checking the installed bulb and connector style before purchase is the best way to avoid returns and ensure the new bulb works correctly.
Both the low beam and high beam headlight bulbs are listed as 9007 on this page. That makes it easier to replace both sides with the same bulb type, but you should still confirm the installed bulb if your truck has been modified.
The brake light bulb size listed for the 2003 Ford F-250 is 3157. This same bulb type is also used for several rear lighting functions on this truck.
Yes, the tail light bulb and rear turn signal light bulb are both listed as 3157. The same size is also shown for the parking light and back-up light positions on this page.
The front turn signal light bulb is listed as 3157. If your truck has a different front lamp setup due to trim or aftermarket parts, verify the bulb already installed.
The license plate light bulb is listed as 168. This is a common small wedge-style bulb used in many trucks for plate illumination.
The dome light bulb is listed as 578 or 912. Either bulb may be shown depending on the specific interior lamp setup, so checking the existing bulb is a good idea.
The front fog light bulb is listed as 9145 LED on this page. If your truck still has factory-style halogen fog lights or an aftermarket conversion, confirm the actual lamp before buying.
The glove box light bulb is listed as 161. This is a small interior bulb and is usually easy to replace once the glove box area is accessed.
The instrument panel light bulb is listed as PC194. This applies to the dash illumination position shown on the page, but cluster changes or repairs may affect the exact setup.
Yes. Trim, body style, and lighting package can change the bulb used in certain positions. That is why this page is organized by lighting location instead of only by vehicle name.
Yes, many owners upgrade to LED bulbs, but the replacement must still fit the socket and work with the truck’s electrical system. Some LED conversions may need resistors or may not match beam pattern as well as halogen bulbs.
Absolutely. Checking the installed bulb is the best way to confirm fitment, especially if the truck has aftermarket lighting, previous repairs, or a different market-specific setup.