Kawasaki ZX1400 Ninja ZX-14R Turn Signal Bulb Size

The Kawasaki ZX1400 Ninja ZX-14R uses a 12496 PY21W bulb size for both front and rear turn signal applications. The replacement chart covers 2012 through 2019 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.

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
2019	12496	12496	Check Price
2014	7507	PY21W	Check Price
2012-2013	12496	12496	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
2019	12496	12496	Check Price
2013-2014	12496	12496	Check Price
2012	7507	PY21W	Check Price

Bulb Specifications

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

Other Locations

Additional Notes

The 12496 is a halogen bulb designated under Philips and Osram part numbering systems, rated at 12 volts and intended for specialty automotive applications.
The PY21W follows the ECE lighting standard used in Europe and internationally, operating at 12 volts with a 21-watt single filament and a BAU15s offset bayonet base.
The BAU15s base on the PY21W features offset pins, which physically prevent installation of standard BA15s-based bulbs in the same socket, making the two base types non-interchangeable.
The PY21W is an amber bulb by construction, meaning its glass envelope produces the amber signal color rather than relying on a colored lens.
On the Kawasaki ZX1400 Ninja ZX-14R, the front turn signal position uses the 12496 for the 2012-2013 and 2019 model years, while the 2014 model year uses the PY21W in that same position.
The rear turn signal position follows a different pattern, with the PY21W appearing only in the 2012 model year and the 12496 specified for 2013-2014 and 2019.
Because the front and rear positions do not share the same bulb type across all model years, a direct front-to-rear substitution is not universally applicable across the full range of listed years.
The 2014 model year is notable in that it requires different bulb types depending on position, with the PY21W at the front and the 12496 at the rear.