Kawasaki ZX600 Ninja ZX-6R Turn Signal Bulb Size

The Kawasaki ZX600 Ninja ZX-6R uses front turn signal bulbs in PY21W and P21W sizes, while rear turn signal bulbs are available in 12496, P21W, and 1073 sizes. The replacement chart covers 1995 through 2012 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

Years	US Type	EU Type	Shop
2007-2012	7507	PY21W	Check Price
1995-2002	1156	P21W	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
2007-2008	12496	12496	Check Price
2002	1156	P21W	Check Price
2000-2001	1073	1073	Check Price
1995-1999	1156	P21W	Check Price

Bulb Specifications

Description	Type	Shop
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.	PY21W	Check Price
ECE standard (Europe & worldwide). Single-filament signalling bulb with BA15s bayonet base. 12V, 21W.	P21W	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. 12V, 21W.	1156	Check Price
Philips/Osram part number. Halogen bulb, specialty application. 12V.	12496	Check Price
ANSI standard (US & Canada). Single-filament bulb with BA15s bayonet base. Lower wattage variant of 1156. 12V, 13W.	1073	Check Price

Other Locations

Additional Notes

The PY21W and P21W bulbs are the most frequently specified types across the Kawasaki ZX600 Ninja ZX-6R turn signal positions. Both operate at 12V and 21W and share the single-filament design, but they differ in base type: the PY21W uses a BAU15s offset bayonet base, while the P21W uses a BA15s straight bayonet base. These two bases are not interchangeable despite their near-identical appearance.
The PY21W is an ECE-standard amber bulb, meaning its glass envelope is tinted to produce amber light. The P21W, also an ECE-standard bulb with a BA15s base, produces clear or white light from its envelope, relying on a colored lens to achieve the required amber signal output.
The front turn signal position on the Kawasaki ZX600 Ninja ZX-6R transitioned from the P21W (1995-2002) to the PY21W (2007-2012), reflecting a change in base type and amber-sourcing method between those production periods.
The rear turn signal position shows greater variation in bulb type across model years. The P21W is specified for 1995-1999 and 2002, the ANSI-standard 1073 for 2000-2001, and the 12496 for 2007-2008.
The 1073 bulb follows the ANSI standard used in North American markets. It carries a BA15s bayonet base and operates at 12V with 13W output, making it a lower-wattage alternative compared to the 21W rating of the P21W and PY21W types. Substituting a 21W bulb in a socket specified for 13W may affect turn signal flash rate and circuit load.
The 12496 is a Philips/Osram part number designation for a halogen bulb in a specialty application. Its wattage is not stated in the specifications, and it is listed exclusively for the 2007-2008 rear turn signal position.
The BA15s base, used by both the P21W and the 1073, is physically compatible in terms of socket fit, but the wattage difference between those two bulb types means they are not functionally interchangeable without potential impact on the turn signal circuit.
Across all positions and years covered, every bulb specified for the ZX600 Ninja ZX-6R operates on a 12V system, consistent with standard motorcycle electrical architecture.