Jeep Commander front turn signal bulbs use a 3157 size while rear turn signal bulbs use a 3057 size. The replacement chart covers 2006 to 2010 vehicle production years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Jeep Commander uses two distinct bulb types across its turn signal positions: the 3157 for the front and the 3057 for the rear, across the full 2006-2010 model range.
Both the 3157 and 3057 are ANSI-standardized bulbs recognized in the United States and Canada, meaning they conform to a defined set of electrical and physical standards rather than being proprietary specifications.
Each bulb is a dual-filament type, which allows a single bulb to serve two lighting functions, typically a brighter output for the turn signal and a dimmer output for a secondary function such as a parking or running light.
Both bulbs share the T25 wedge form factor, a designation that refers to the shape and base style of the bulb rather than its electrical output.
The 3157 and 3057 operate at 12 volts with a wattage rating of 27W on the high filament and 7W on the low filament, making their electrical draw identical.
Despite sharing the same voltage, wattage, and T25 form factor, the 3157 and 3057 are not interchangeable. The two types differ in their base pin configuration, and installing the incorrect type in a given socket risks improper fitment or incorrect circuit behavior.
The front turn signal position on the Jeep Commander (2006-2010) is specified exclusively for the 3157, while the rear turn signal position across the same years is specified exclusively for the 3057.