Nissan 510 Back Up Light Bulb Size

The Nissan 510 back up light requires bulb size 1156 or P21W depending on the specific version of the vehicle. Data for the bulb sizes covers the range from 1978 to 1981.

The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.

Bulb Size by Year Range

Years	Bulb Size
1978-1981	1156

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156

Other Locations

Additional Notes

The Nissan 510 uses the 1156 bulb for the back up light across the 1978-1981 model years.
The 1156 is an ANSI-standardized bulb type, meaning its physical and electrical specifications are governed by a recognized North American standard applicable in both the United States and Canada.
The 1156 operates on a 12-volt electrical system and draws 21 watts, which is consistent with standard automotive reverse lighting applications.
The 1156 is a single-filament bulb, meaning it serves one lighting function only, as opposed to dual-filament types that handle two functions such as braking and running light simultaneously.
The 1156 uses a BA15s bayonet base, where "BA15s" denotes a bayonet mount with a 15mm base width and a single contact pin, which locks into the socket with a push-and-twist motion.
Because the BA15s base has a single offset pin, it is not interchangeable with the BA15d base, which carries two pins and is found on dual-filament bulbs such as the 1157.