What is the replacement light for a rear signal 2006 Chevy Cobalt?

The specific bulb type for the rear turn signal light on a 2006 Chevy Cobalt depends on whether it's the inner or outer light. The owner's manual is the best resource, but generally, they use either a 7443 (also known as a 7440 or WY21W) or a 3157 bulb.

To be certain:

1. Check your owner's manual: This will definitively tell you the correct bulb type.

2. Look at the old bulb: If you can remove the old bulb safely, the bulb type is printed on it.

3. Consult a parts store website: Websites like AutoZone, Advance Auto Parts, or O'Reilly Auto Parts allow you to look up parts by year, make, and model of your vehicle. This will give you the correct bulb type.

Don't just rely on generic answers; verifying the exact bulb type is crucial for proper fit and function.