
LUYED Fog Lights 880 881 LED Fog Light Bulbs - 899 893 88...
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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam and Low Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Center High Mount Stop Light Bulb, Engine Compartment Light Bulb, Trunk or Cargo Area Light
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear
Used for: Ash Tray Light Bulb
Used for: Automatic Transmission Indicator Light Bulb, Glove Box Light Bulb, Map Light Bulb
Used for: Automatic Transmission Indicator Light Bulb, Glove Box Light Bulb, Map Light Bulb
Used for: Dome Light Bulb, Reading Light Bulb Rear
Used for: Instrument Panel Light Bulb(Compare to original - Option 1)
Used for: Instrument Panel Light Bulb(Compare to original - Option 2)
Used for: Vanity Mirror Light Bulb
This 2003 Ford Mustang bulb size guide helps you verify the correct bulb for each lighting position on the car. Use it to match the right fit for headlights, tail lights, turn signals, interior lamps, and other locations before you buy replacements.
Because bulb fitment can vary by trim, body style, and lighting package, this page organizes the bulbs by position rather than by a single generic list. That makes it easier to confirm the exact size for the front, rear, and cabin lights on your Mustang.
For best results, compare the bulb in your car with the listing before ordering, especially if your Mustang has been modified or uses aftermarket lighting. Trim and package differences can affect fitment, and LED conversions may require different bulbs or additional parts even when the original halogen size is known. If you are changing from halogen to LED, check beam pattern, polarity, and housing compatibility so the new bulb works properly. When in doubt, remove the installed bulb and read the number on the base before purchase; that is the most reliable way to confirm fitment for a 2003 Mustang.
The 2003 Ford Mustang uses a 9007 bulb for both the high beam and low beam headlight positions.
The front turn signal bulb is 3157A. The same size is also listed for the parking light and front side marker light on this model.
The rear brake light bulb and tail light bulb are both 3157R on the 2003 Ford Mustang.
The rear turn signal bulb is 3157 on the 2003 Mustang.
The back up reverse light bulb is 3156.
The center high mount stop light bulb is 906.
Both the dome light bulb and the rear reading light bulb use 578.
The glove box light bulb and map light bulb are both 194, 7441.
The license plate light bulb is listed as 168 or 917.
The front fog light bulb is 899.
Two instrument panel options are listed: PC194 for one setup and PC37 for another original-equipment comparison option.
Not always. Trim, body style, and lighting package can change fitment, so it is best to verify the bulb by lighting position and compare it to the bulb already installed in your car.
Yes, many positions can be converted to LED, but you should confirm the correct size first and check for compatibility issues such as polarity, brightness, and housing fit.
Remove the existing bulb and check the number on the base, then match it to the position on the bulb chart. This is especially helpful if your Mustang has aftermarket parts or a previous owner changed the lighting.