Hyundai Azera front side marker bulbs use 12961 size while rear side marker bulbs use 168 size. The replacement chart covers 2006 through 2012 vehicle production years with corresponding bulb specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 12961 is a Philips part number designation for a miniature wedge bulb in the T10 form factor, operating at 12V and 5W with a W2.1x9.5d base. The W2.1x9.5d base is a standardized wedge-type connection where the bulb pins directly into the socket without a separate locking mechanism.
The 168 is an ANSI-standardized bulb number recognized across the United States and Canada. It shares the T10 form factor with the 12961 and operates at 12V, though its wattage is rated at 4.9W rather than 5W.
Both the 12961 and 168 use the T10 form factor, which refers to a tubular bulb with a width of 10/8 of an inch. Despite this shared form factor, the two bulbs carry different base and wattage specifications, which is relevant to fitment decisions.
The front side marker position on the Hyundai Azera uses the 12961 bulb for the 2012 model year and for the 2011 model year in units produced through December 10, 2010. The production date cutoff on the 2011 entry indicates a mid-cycle specification that applies only to a specific portion of that model year's production run.
The rear side marker position on the Hyundai Azera uses the 168 bulb across the 2006-2010 model years, making it the more frequently specified bulb across the listed data set.
The production date qualifier on the 2011 front side marker entry, specifically "To 12/10/2010," signals that vehicles assembled after that date may carry a different specification, and fitment based solely on model year without accounting for build date could result in an incorrect bulb selection.