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Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam
Used for: Headlight Bulb Low Beam(with halogen headlights)
Used for: Headlight Bulb Low Beam(with HID headlights)
Used for: Back Up Reverse Light Bulb
Used for: License Plate Light Bulb, Parking Light Bulb, Interior Door Light Bulb, Map Light Bulb
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb
Used for: Dome Light Bulb
Used for: Glove Box Light Bulb
Used for: Trunk or Cargo Area Light
This 2008 Lexus IS 250 bulb size guide helps you quickly verify the correct bulb by lighting position, so you can replace a failed lamp without guessing. Whether you are changing a headlight, interior light, or exterior marker bulb, this page organizes the common fitments for the 2008 Lexus IS 250 in one place.
Because trim and lighting equipment can vary by market and body style, the same model year may use different bulbs in some positions. Use the bulb chart below to match the bulb to the exact location on your car before ordering replacements.
For the best fit, always compare the bulb type on the vehicle with the listing for your specific trim and lighting package. This is especially important on the 2008 Lexus IS 250 because halogen and HID headlight setups use different low beam bulbs, and some cars may have optional fog lights or other package-dependent lighting. Aftermarket LED or HID conversions can also change the bulb you need, so check whether your car has been modified before buying. If possible, remove the installed bulb and confirm the part number or base style before purchase to avoid returns.
The low beam bulb size for a 2008 Lexus IS 250 with halogen headlights is H11.
Models equipped with HID headlights use a D4S low beam bulb.
The high beam bulb size is 9005.
The front turn signal bulb size is 7440A.
The rear turn signal bulb size is 7440A.
The back up reverse light bulb size is 921.
The license plate light bulb size is 168.
The parking light bulb size is 168.
The front side marker light bulb size is 194NA.
The rear side marker light bulb size is 194NA.
The dome light bulb size is DE3021.
The trunk or cargo area light bulb size is DE3022.
The glove box light bulb size is 37.
Not always. Trim level, market, and lighting package can affect bulb fitment, so it is best to confirm the exact bulb position on your vehicle.
Yes, many positions can be upgraded to LED, but the replacement must match the socket and fit properly. Some LED bulbs may require extra attention to polarity, size, or heat management.
Yes. Checking the installed bulb is the safest way to confirm fitment, especially if your car has been modified or if you are replacing a bulb on a trim with optional lighting equipment.