Kawasaki ZX1400 Ninja ZX-14 Turn Signal Bulb Size

The Kawasaki ZX1400 Ninja ZX-14 uses a PY21W bulb size, designated as 12496, for both front and rear turn signal applications. The replacement chart covers 2006 through 2011 production 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.

Front Turn Signal

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2011	7507	PY21W	Check Price
2009-2010	12496	12496	Check Price
2006-2008	7507	PY21W	Check Price

Rear Turn Signal

If US Type and EU Type show the same value, a direct cross-reference for this bulb is not available or the data is insufficient.

Years	US Type	EU Type	Shop
2010-2011	7507	PY21W	Check Price
2008-2009	12496	12496	Check Price
2007	7507	PY21W	Check Price
2006	12496	12496	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.	PY21W	Check Price
Philips/Osram part number. Halogen bulb, specialty application. 12V.	12496	Check Price

Other Locations

Additional Notes

The Kawasaki ZX1400 Ninja ZX-14 uses two distinct bulb types across its front and rear turn signal positions: PY21W and 12496. Both operate at 12 volts, making them electrically compatible in terms of voltage requirements, though they differ in base type and origin standard.
The PY21W is an ECE-standard bulb recognized across European and worldwide markets. It is a single-filament amber bulb rated at 21 watts and fitted with a BAU15s bayonet base. The angled BAU15s base is offset by 1mm compared to a standard BA15s base, which physically prevents incorrect installation of non-amber bulbs in amber-designated sockets.
The 12496 is a part number associated with Philips and Osram, designated for specialty halogen applications. It is rated at 12 volts, and its use in the ZX-14 turn signal positions indicates it serves as a functionally equivalent alternative to the PY21W in certain model years.
Front turn signal fitment on the ZX1400 Ninja ZX-14 calls for PY21W in 2006-2008 and 2011, while the 2009-2010 model years use the 12496 bulb instead. These two groups are not interchangeable without confirming socket compatibility, as the base types may differ.
Rear turn signal fitment follows a different pattern from the front. The 12496 is specified for 2006, 2008-2009, while PY21W is specified for 2007, 2010-2011. A given model year does not necessarily use the same bulb type at both the front and rear positions.
In 2009, the front and rear turn signals use different bulb types from each other: the front takes a 12496 while the rear also takes a 12496, making that year consistent across positions. In 2010, the front uses 12496 while the rear uses PY21W, meaning the two positions require different bulbs on the same vehicle.
The BAU15s base of the PY21W is a keyed bayonet fitting. Its offset pin placement means a socket designed for BAU15s will not accept a standard BA15s bulb, and vice versa. This physical distinction is relevant when sourcing replacements for positions specified as PY21W on this model.
Because the front and rear turn signal positions on the ZX1400 Ninja ZX-14 do not consistently share the same bulb type across all years, the position and model year must both be referenced before selecting a replacement bulb.