
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
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, Daytime Running Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Center High Mount Stop Light Bulb, Dome Light Bulb, Map Light Bulb
Used for: License Plate Light Bulb, Parking Light Bulb, Side Marker Light Bulb Rear, Turn Signal Light Bulb Front Outer
Used for: Side Marker Light Bulb Front
Used for: Turn Signal Light Bulb Front Inner, Turn Signal Light Bulb Rear
Used for: Courtesy Light Bulb
Used for: Trunk or Cargo Area Light
This 2007 Cadillac CTS-V bulb size guide helps you verify the correct replacement bulb by lighting position, so you can match the right part to the right lamp before you buy. Whether you are replacing a headlight, tail light, marker light, or interior bulb, this page is organized to make fitment checks quick and straightforward.
The 2007 Cadillac CTS-V used different bulb types depending on the lamp location, and some positions can vary by market, trim, or lighting package. Use the bulb chart on this page to confirm each socket by function, especially if you are working on a car with factory HID headlights or a model that has been modified over time.
For the best fit, always compare the bulb listed here with the bulb already installed in your vehicle, since trim and package differences can affect the final application. This is especially important when switching between halogen and HID setups, or when using aftermarket LED conversions that may need adapters, resistors, or different beam patterns to work correctly. If the car has been repaired before, the installed bulb may not match the original factory specification, so checking the old bulb before ordering is the safest approach.
For 2007 Cadillac CTS-V models equipped with HID headlights, the low beam bulb is D1S.
If your 2007 Cadillac CTS-V has halogen headlights, the low beam bulb is 9006XS.
The high beam bulb listed for the 2007 Cadillac CTS-V is 9005XS.
The front fog light bulb is listed as 9145 LED.
The daytime running light bulb is 3157.
The front outer turn signal bulb is 2825, the front inner turn signal bulb is 3157A, and the rear turn signal bulb is 3157A.
Both the brake light bulb and the tail light bulb are listed as 3157R.
The back up reverse light bulb is 3157.
The license plate light bulb is 2825.
The front side marker light bulb is 194NA.
The rear side marker light bulb is 2825.
The trunk or cargo area light uses 211-2, while the dome light, map light, and center high mount stop light are listed as PC175. Courtesy light bulb fitment is listed as 564 for applicable models.
Because trim, lighting package, and market differences can change fitment, and previous repairs or aftermarket parts may mean the bulb in the car is not the original factory type.
Yes, many owners upgrade to LED bulbs, but fitment and performance can vary. Make sure the LED matches the socket, works with the vehicle’s electrical system, and produces a proper beam pattern for the lamp position.