Lexus ES350 Headlight Bulb Size

Additional Notes

• The 9005 bulb is the most widely represented high beam type in the Lexus ES350 specifications, covering the 2007-2015 model years. It follows the ANSI standard used in the US and Canada, operates at 12V and 65W, and uses a P20d base with a single filament.
• The H9 bulb replaced the 9005 for high beam use in the 2016-2018 Lexus ES350, specifically in trims equipped with LED headlamps. Like the 9005, the H9 is a single-filament halogen bulb rated at 12V and 65W, though it uses a PGJ19-5 base and follows the ECE standard rather than ANSI.
• Although the 9005 and H9 share the same 12V/65W electrical rating, their bases differ, with the 9005 using a P20d base and the H9 using a PGJ19-5 base. This physical difference makes the two types non-interchangeable despite their identical wattage.
• The D4S is a mercury-free HID (xenon) discharge bulb rated at 42V and 35W, designed specifically for projector-type housings. It appears as the low beam option for HID-equipped Lexus ES350 models across the 2007-2015 model years and uses a P32d-5 base under the ECE standard.
• Low beam halogen fitment in the Lexus ES350 shifted from H7 to H11 starting with the 2010 model year. The H7 applies to 2007-2009 models with halogen capsule headlamps, while the H11 applies to 2010-2015 models with the same headlamp type. Both operate at 12V and 55W but use different bases, PX26d for H7 and PGJ19-2 for H11, making them incompatible with each other.
• For the 2010-2015 model years, two distinct low beam bulb types are listed depending on headlamp configuration. Halogen capsule headlamp trims use the H11, while HID headlamp trims use the D4S. Substituting one for the other is not supported by the specifications, as the D4S requires a projector-type housing and operates at a substantially different voltage.
• The H7 and H11 are both ECE-standard, single-filament halogen bulbs approved for use in the US, and both are rated at 12V and 55W. Despite these similarities, their base types differ and they are not interchangeable within the ES350 fitment data.
• No high beam bulb size is listed for the 2016-2018 model years outside of the LED headlamp configuration, and no low beam bulb size is listed for those same years under any configuration, reflecting that LED systems in those trims do not use replaceable halogen or HID bulbs of the types covered in these specifications.