Fitment Guaranteed for 2004 Cadillac CTS

2004 Cadillac CTS Bulb Sizes

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Full Bulb Size Chart

PositionBulb SizeShop
Low Beam
HID-D1S LEDCheck Price on Amazon
High Beam
9005XS LEDCheck Price on Amazon
Fog Light
9145 LEDCheck Price on Amazon
Brake Light
PC175 LEDCheck Price on Amazon
Side Marker
2825 LEDCheck Price on Amazon
Turn Signal Front
2825 LEDCheck Price on Amazon
Turn Signal Rear
3157K LEDCheck Price on Amazon
Dome Light
PC175Check Price on Amazon
License Plate
2825Check Price on Amazon
Map Light
PC175Check Price on Amazon
Parking Light
2825Check Price on Amazon
Reverse Light
3157KCheck Price on Amazon
Trunk Light
211-2Check Price on Amazon

Installation Guide

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Frequently Asked Questions

The 2004 Cadillac CTS uses a HID-D1S LED bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

The high beam bulb size for the 2004 Cadillac CTS is 9005XS LED.

Yes, the 2004 Cadillac CTS takes a 9145 LED bulb for the fog light position.
Disclaimer

Bulb sizes can vary by trim level. Always check your owner's manual or remove the existing bulb to verify the size before purchasing. We may earn a commission from links on this page.