Nissan GT-R Map Light Bulb Size

Additional Notes

• The Nissan GT-R uses the 12961 bulb for its map light across all listed model years from 2009 to 2024, with the exception of 2020, which is not present in the specifications.
• The 12961 is a Philips part number designating a miniature wedge bulb in the T10 form factor with a W2.1x9.5d base, rated at 12 volts and 5 watts.
• The T10 designation refers to a tubular bulb with a width of approximately 10 millimeters, commonly used in low-intensity interior lighting applications such as map and courtesy lights.
• The W2.1x9.5d base type is a wedge-style base, meaning the bulb is held in its socket by the tension of the socket walls rather than by a bayonet or screw mechanism.
• At 5 watts and 12 volts, the 12961 operates at a relatively low power draw, consistent with interior cabin lighting roles where heat output and power consumption are kept minimal.
• The 2012 Nissan GT-R specification notes the 12961 bulb specifically for the center map light position, indicating that model year may have more than one map light location with potentially distinct fitment requirements.
• Because the 12961 is a Philips-branded part number rather than a universal industry code, equivalent bulbs from other manufacturers must share the T10 form factor and W2.1x9.5d base to be considered interchangeable.