The Nissan NV2500 front turn signal uses a 3157 or 3157NA bulb size, while the rear turn signal requires a 3156NA bulb size. The replacement bulb chart covers 2012 to 2021 model years.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The Nissan NV2500 front turn signal uses the 3157NA bulb across the 2012-2020 model years, while the 2021 model year uses the 3157 instead.
The 3157 and 3157NA are both dual-filament T25 wedge bulbs rated at 12V with a 27W high filament and a 7W low filament, making them electrically identical in output.
The sole distinction between the 3157 and 3157NA is the glass envelope: the 3157NA uses natural amber-tinted glass, whereas the 3157 uses clear glass.
Because the 2021 NV2500 front turn signal position calls for a clear 3157 rather than the amber 3157NA, substituting a 3157NA in that position would alter the emitted light color at the lens.
The rear turn signal on the Nissan NV2500 uses the 3156NA across all model years in the specifications, from 2012 through 2021.
The 3156NA is a single-filament T25 wedge bulb rated at 12V and 27W, with natural amber glass, conforming to the ANSI standard for the US and Canada.
The front position uses a dual-filament bulb while the rear position uses a single-filament bulb, reflecting a functional difference between the two circuits.
The 3156NA and 3157NA share the same T25 wedge base and amber glass, but the 3157NA carries a second filament. Fitting a 3157NA into a single-filament 3156NA socket is a known compatibility concern, as the socket wiring would leave the second filament unconnected.
All three bulb types in these specifications conform to ANSI standards applicable in both the United States and Canada.
The T25 designation refers to the wedge base form factor shared by the 3156NA, 3157, and 3157NA, which governs physical socket fitment across these positions.