Jeep Liberty front and rear turn signal bulbs utilize 3757NA and 3157 bulb sizes for replacement applications. The replacement chart covers vehicle production spanning 2002 to 2012 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 Liberty uses two bulb types across its turn signal positions: the 3757NA and the 3157. Both are dual-filament wedge bulbs built to the T25 form factor and operate on 12 volts, making them physically similar in construction.
The 3157 is rated at 27W on its high-intensity filament and 7W on its low-intensity filament. This dual-wattage design allows a single bulb to serve both turn signal and parking light functions simultaneously.
The 3757NA is a natural amber glass variant within the same T25 family. Its amber tint is built into the glass envelope itself rather than applied through a colored lens or coating.
Both bulb types conform to ANSI standards recognized in the United States and Canada, meaning they share a standardized base and electrical specification across that market.
The front turn signal position on the Jeep Liberty (2002-2007) uses the 3157, while the 2008-2012 model years use the 3757NA in that same position.
The rear turn signal position transitions from the 3157 on 2002-2004 models to the 3757NA on 2005-2012 models, meaning the front and rear positions were not always aligned to the same bulb type within a given model year.
On 2005-2007 model years, the front and rear turn signal positions require different bulb types from each other, with the front taking a 3157 and the rear taking a 3757NA.
Although the 3157 and 3757NA share the T25 wedge base and are physically interchangeable in terms of fitment, substituting a clear 3157 for a 3757NA in an amber-lens-free housing would produce white rather than amber light, which affects regulatory compliance for turn signal color output.
From 2008 onward, both the front and rear turn signal positions on the Liberty are standardized to the 3757NA, eliminating the mixed-bulb configuration present in earlier model years.