Honda Motorcycle NSS 250 Jazz Turn Signal Bulb Size
Honda Motorcycle NSS 250 Jazz front turn signal bulbs use 7443 size while rear turn signal bulbs use 7440 size. The replacement chart covers 2001 to 2004 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 Honda Motorcycle NSS 250 Jazz uses two distinct T20 wedge bulb types across its turn signal positions, with the 7443 fitted at the front and the 7440 fitted at the rear for model years 2001-2004.
The 7443 is a dual-filament T20 wedge bulb rated at 12V with a 21W/5W output, meaning it carries one filament for the primary turn signal function and a second lower-power filament, commonly used for a combined running or parking light role.
The 7440 is a single-filament T20 wedge bulb rated at 12V and 21W, dedicated solely to the turn signal function at the rear position.
Both the 7443 and 7440 conform to ANSI standards applicable in the United States and Canada, indicating they meet a defined set of dimensional and electrical performance criteria within those markets.
Although the 7443 and 7440 share the same T20 wedge base form factor and voltage rating, they are not interchangeable. Installing a 7440 in a 7443 position would eliminate the secondary filament circuit, while installing a 7443 in a 7440 position introduces an unused filament that the socket was not designed to engage.
The front turn signal position of the NSS 250 Jazz requires the dual-filament 7443 specifically because the socket is wired to utilize both filaments, a distinction that makes bulb type selection critical for correct electrical operation.