Lexus RX300 Turn Signal Bulb Size

The Lexus RX300 front turn signal uses a 7440 bulb size, while rear turn signals accommodate PY21W, 12496, or 7440 bulb sizes across different positions. The replacement chart covers vehicle production spanning 1999 to 2003 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

YearsUS TypeEU TypeShop
1999-20037440W21WCheck 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.

YearsUS TypeEU TypeShop
20037507PY21WCheck Price
20021249612496Check Price
20017507PY21WCheck Price
1999-20007440W21WCheck Price

Bulb Specifications

Description Type Shop
ANSI standard (US & Canada). Single-filament wedge bulb (T20). 12V, 21W.7440Check Price
ECE standard (Europe & worldwide). Single-filament amber bulb with BAU15s bayonet base. 12V, 21W.PY21WCheck Price
Philips/Osram part number. Halogen bulb, specialty application. 12V.12496Check Price

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