2018 Cadillac CT6 Headlight Bulb Size

By clicking the link you will be redirected to Amazon. The aftermarket bulbs & headlights below may improve the illumination of your vehicle and make it stand out from the crowd.
Lightninglab.org is reader-supported. When you buy through links on our site, we may earn an affiliate commission.

Back Up Reverse Light Bulb - 921
LED
Trunk or Cargo Area Light - 194
Trunk or Cargo Area Light - 7441
LED

2018 Cadillac CT6 Back Up bulb size - 921

LED Lights

  • 300% Brighter - 921 led bulb has 3030 SMD LED chips. You can see farther and clearer when reversing at night.
  • Easy Installation - 1:1 design with halogens, non-polarity, play, and plug. 921 led bulb reverse light is fit for 921,912, T15, 906, 904, 902, 922, W16W. Upgrade replacement for reverse...

Product review
Buy

You want bright, stylish lighting for your car but you don’t want to keep replacing burned-out bulbs. Philips Ultinon LED lights to give you high-powered, automotive-grade LEDs, with a lifetime of up to 8 years. With conventional bulbs, the more powerful the light, the shorter its lifespan. Philips Ultinon LEDs...
Product review

Buy
See More 921 LED Lights

2018 Cadillac CT6 Trunk Area bulb size - 194

LED Lights

Product benefits:

  1. Canbus error free, no error after installation.
  2. 360-degree lighting angle, no visual blind spot.
  3. Energy-Saving, low power consumption for a longer life span.
  4. Easy to install, non-polarity just plug and play.
  5. Brilliant red color light brings your car a refreshed new look.
  6. Fits directly into multiple bulb-size sockets such as 168 175 194 2825...

Product review
Buy
  • 360-degree light output coverage.
  • 5 times more light than conventional interior lighting.
  • Up to 12 years lifetime compared to regular halogen bulbs.

Product review
Buy
See More 194 LED Lights

Halogen Lights

– Longer life than basic bulbs
– Legal for on road use
– OE (Original Equipment) Manufacturer
– Light bulbs dim over time and require replacement
– Replace in pairs for optimal performance


Product review
Buy
See More 194 Halogen Lights

2018 Cadillac CT6 Trunk Area bulb size - 7441

LED Lights

The KATUR T20 White/Amber Switchback LED Light Bulbs (7441) are a great upgrade for your vehicle's lighting. These energy-efficient bulbs have a 12V operating voltage and are designed to last 50,000 hours, 50 times longer than traditional incandescent bulbs. The single-contact 7440 LED light bulb replaces most auto car incandescents...
Product review

Buy

These 7443 led bulbs come with 24 pcs 2835 SMD LED chipsets, 300% brighter than halogen bulbs. Upgraded intelligent IC makes the 7440/7443 led light bulbs compatible with 99% of vehicles, with no radio interference, and no flicker issue.

 Low power consumption & Built-in intelligent IC driver for a longer lifespan. Full...
Product review

Buy
See More 7441 LED Lights

Popular Headlights



Popular Taillights





The 2018 Cadillac CT6 bulb size chart specifies the recommended lamp part numbers and types for all positions of its electrical system, like headlights, fog lights, brake lights, side markers, etc. If you want to upgrade the headlights, the aftermarket bulb you select has to be the exact size your 2018 Cadillac CT6 requires to fit into the housing and match the wattage and voltage specifications. Pay special attention to the marking and make sure the bulb is “DOT” compliant to avoid legal issues.





Reviewed by Brent Ordway

Brent Ordway is an ASE-certified car technician. He has been working on cars since he was a teenager and loved helping people keep their vehicles running smoothly. Brent's skills as a mechanic are unrivaled. In 2022, he earned his place on the list of winners for the ASE Master Automobile Technician of the Year award.

Follow me

Cadillac CT6 Bulb Chart By Years


Join Us