Nissan Juke front turn signal bulbs use 7440NA, 12496, or PY21W sizes, while rear turn signal bulbs use 7440NA or 7443 sizes. The replacement chart covers 2011 through 2017 model years with corresponding bulb size specifications.
The year-by-year compatibility chart below provides a quick reference to verify the correct bulb size for your vehicle.
The 7440NA is an ANSI-standard single-filament wedge bulb in the T20 form factor, rated at 12V and 21W, with natural amber glass that produces the amber turn signal color without relying on a tinted lens or socket.
The Nissan Juke (2015-2017) uses the 7440NA for both the front and rear turn signals, making it the only model year range in these specifications where a single bulb type covers both positions simultaneously.
The 7443 is an ANSI-standard dual-filament T20 wedge bulb rated at 12V with a 21W high filament and a 5W low filament, which allows a single bulb to serve two lighting functions within the same housing.
The Juke (2011-2014) rear turn signal uses the 7443 across all four years, while the front turn signal position uses different bulb types across that same period, meaning front and rear positions are not interchangeable for those years.
The PY21W follows the ECE standard and uses a BAU15s bayonet base, which is an offset-pin base designed to prevent incorrect installation. This base is physically distinct from the wedge base used by the 7440NA and 7443, making cross-substitution mechanically impossible without modification.
The 7440NA and PY21W share the same 12V, 21W electrical rating, but their base types differ entirely. The 7440NA uses a wedge base while the PY21W uses a BAU15s bayonet base, so they are not interchangeable despite identical wattage.
The 12496 is a Philips/Osram part number designation rather than an ANSI or ECE standard code, indicating it is a manufacturer-specific halogen bulb rated at 12V and intended for specialty applications.
The front turn signal of the Juke alternates between PY21W (2011, 2013) and 12496 (2012, 2014) in its earlier years before transitioning to the 7440NA from 2015 onward, reflecting distinct bulb specifications across individual model years rather than a continuous fitment.