Cadillac CTS-V 2007 Bulb Size
Bulb size chart
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.
FAQ
What is the low beam bulb for a 2007 Cadillac CTS-V with HID headlights?
For 2007 Cadillac CTS-V models equipped with HID headlights, the low beam bulb is D1S.
What low beam bulb does the 2007 Cadillac CTS-V use with halogen headlights?
If your 2007 Cadillac CTS-V has halogen headlights, the low beam bulb is 9006XS.
What is the high beam bulb size on the 2007 Cadillac CTS-V?
The high beam bulb listed for the 2007 Cadillac CTS-V is 9005XS.
What bulb is used for the front fog lights?
The front fog light bulb is listed as 9145 LED.
What bulb fits the front daytime running lights?
The daytime running light bulb is 3157.
What bulb is used for the front and rear turn signals?
The front outer turn signal bulb is 2825, the front inner turn signal bulb is 3157A, and the rear turn signal bulb is 3157A.
What are the brake light and tail light bulb sizes?
Both the brake light bulb and the tail light bulb are listed as 3157R.
What bulb is used for the reverse lights?
The back up reverse light bulb is 3157.
What bulb fits the license plate lights?
The license plate light bulb is 2825.
What bulb is used for the front side marker lights?
The front side marker light bulb is 194NA.
What bulb fits the rear side marker lights?
The rear side marker light bulb is 2825.
What interior bulbs does the 2007 Cadillac CTS-V use?
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.
Why should I check the installed bulb before ordering replacements?
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.
Can I replace the factory bulbs with LED bulbs?
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.