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Used for: Fog Light Bulb Front
Used for: Fog Light Bulb Front
Used for: Headlight Bulb High Beam and Low Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Center High Mount Stop Light Bulb
Used for: License Plate Light Bulb
Used for: License Plate Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front, Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear
Used for: Automatic Transmission Indicator Light Bulb, Turn Signal Indicator Light Bulb
Used for: Courtesy Light Bulb
Used for: Dome Light Bulb
Used for: Map Light Bulb
Used for: Map Light Bulb
Used for: Trunk or Cargo Area Light
Used for: Trunk or Cargo Area Light
This page covers bulb sizes for the 2006 Chevrolet Cobalt and helps you verify the correct bulb by lighting position. Whether you are replacing a burned-out exterior lamp or updating an interior light, matching the bulb to the right location is the easiest way to avoid fitment mistakes.
The 2006 Chevrolet Cobalt uses different bulb types for the headlights, tail lamps, markers, and cabin lights. Because trim level, lighting package, body style, and market can change the setup, it is smart to compare the bulb chart with the bulb already installed in your car before you buy replacements.
For best results, confirm whether your Cobalt uses halogen or an LED conversion in any given position, since aftermarket upgrades can change the bulb style or required adapter. Trim and package differences may affect fog lights, interior lamps, and some rear lighting functions, so the same year and model can still have different fitments. If you are switching to LED bulbs, make sure the replacement is designed for the same socket and can work with your vehicle’s electrical system. When possible, remove the old bulb and check the number printed on the base before ordering, especially for exterior lights and any bulb that may have been changed previously.
The headlight bulb for both high beam and low beam on the 2006 Chevrolet Cobalt is 9007.
The brake light bulb size is 3157R.
The tail light bulb size is 3157R.
The rear turn signal light bulb size is 3157.
The front turn signal light bulb and the parking light bulb both use 3457A.
The front side marker light bulb size is 194NA.
The rear side marker light bulb size is also 194NA.
The license plate light bulb can be 194 or 7441, depending on the specific setup.
The back up reverse light bulb size is 921.
The dome light bulb size is 562.
The center high mount stop light bulb size is 912.
The front fog light bulb can be H11 LED or H16 LED, depending on the vehicle’s lighting package and the type of replacement being used.
Not always. Trim level, body style, market, and lighting package can change the bulb used in certain positions, so it is best to verify the exact fitment for your car.
Yes, many positions can be upgraded to LED, but the replacement must match the socket and should be chosen carefully for fit, beam pattern, and electrical compatibility.
Yes. Checking the installed bulb is one of the safest ways to confirm fitment, especially if the car has aftermarket parts or a previous owner changed the bulb type.