The Volvo V70 side marker requires a 12961 bulb size for proper illumination and replacement. Data for the specified component covers the range from 1998 through 2010.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 12961 is the dominant bulb type across the Volvo V70 side marker specifications. It is a Philips part number designating a T10 miniature wedge bulb with a W2.1x9.5d base, rated at 12V and 5W.
The T10 wedge format of the 12961 means it is inserted directly into a friction-fit socket with no locking mechanism, relying on the wedge-shaped base to maintain contact with the terminals.
The Volvo V70 front side marker uses the 12961 bulb across all listed model years, spanning 2001-2010.
For the rear side marker, the 12961 is designated as the Inner position bulb for model years 1998-2007, and as the sole rear side marker bulb for 2008-2010.
The 5008 is an ANSI-standard bulb used in the Volvo V70 rear side marker for 2005-2006. It uses a BA15s single-contact bayonet base, which is physically and electrically incompatible with the W2.1x9.5d wedge socket used by the 12961.
The BA15s bayonet base of the 5008 requires a twist-and-lock installation, as opposed to the straight-push fitment of the 12961 wedge bulb. These two base types are not interchangeable.
The 5008 is described as a lower wattage variant of the 1156 bulb. Both share the BA15s base, but the wattage difference means the 1156 is not a direct drop-in replacement where the 5008 is specified.
For model years 2001-2007, the rear side marker on the Volvo V70 carries an Inner position designation for the 12961 bulb, indicating the presence of a multi-bulb rear side marker assembly during that period.