BMW 535i GT Turn Signal Bulb Size

The BMW 535i GT front turn signal bulb uses a PY24WNA size. The replacement chart covers 2010 to 2011 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.

Front Turn Signal

Years	Bulb Size
2010-2011	PY24WNA

Bulb Specifications

Description	Bulb Size
ANSI standard (US & Canada). Amber variant of ECE PY24W with PGU20-4 base. 12V, 24W.	PY24WNA

Other Locations

Additional Notes

The PY24WNA bulb is the front turn signal fitment for the BMW 535i GT across the 2010-2011 model years.
PY24WNA is an ANSI-standard bulb rated for use in the United States and Canada, operating at 12 volts with a 24-watt output.
The bulb uses a PGU20-4 base, which is a wedge-style bayonet fitting with an offset pin configuration designed to ensure correct rotational orientation during installation.
PY24WNA is the North American equivalent of the ECE-standard PY24W, with the key distinction being its amber-tinted glass envelope. The ECE PY24W achieves the amber signal color through the bulb's coating rather than a clear lens, whereas the ANSI variant carries the same amber construction adapted to North American regulatory standards.
Because PY24WNA and PY24W share the PGU20-4 base, physical fitment between the two types is possible, though regulatory compliance differs by market. Substituting one for the other may not satisfy local lighting standards.