PIAA 19615 9005 (HB3) Xtreme White Plus
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Toyota Avalon 2003 Bulb Size
Bulb size chart
Headlight Bulb High Beam - 9005
Back Up Reverse Light Bulb - 921
Brake Light Bulb - 7443R
Center High Mount Stop Light Bulb - 921
Daytime Running Light Bulb - 9005
License Plate Light Bulb - 168, 917
Parking Light Bulb - 1157A
Side Marker Light Bulb Front - 1157A
Side Marker Light Bulb Rear - 194NA
Tail Light Bulb Inner - 168, 917
Tail Light Bulb Outer - 7443R
Turn Signal Light Bulb Front - 1157A
Turn Signal Light Bulb Rear - 7440A
Courtesy Light Bulb - 6418
Dome Light Bulb - 6418
Glove Box Light Bulb - 37
Map Light Bulb - 6418
Trunk or Cargo Area Light - 2825, 98
9005 Bulbs
Used for: Headlight Bulb High Beam, Daytime Running Light Bulb
921 Bulbs
Used for: Back Up Reverse Light Bulb, Center High Mount Stop Light Bulb
7443R Bulbs
Used for: Brake Light Bulb, Tail Light Bulb Outer
168 Bulbs
Used for: License Plate Light Bulb, Tail Light Bulb Inner
917 Bulbs
Used for: License Plate Light Bulb, Tail Light Bulb Inner
1157A Bulbs
Used for: Parking Light Bulb, Side Marker Light Bulb Front, Turn Signal Light Bulb Front
194NA Bulbs
Used for: Side Marker Light Bulb Rear
7440A Bulbs
Used for: Turn Signal Light Bulb Rear
6418 Bulbs
Used for: Courtesy Light Bulb, Dome Light Bulb, Map Light Bulb
37 Bulbs
Used for: Glove Box Light Bulb
2825 Bulbs
Used for: Trunk or Cargo Area Light
98 Bulbs
Used for: Trunk or Cargo Area Light
This page covers the bulb sizes for the 2003 Toyota Avalon and is organized by lighting position so you can quickly match the correct bulb to the right socket. Whether you are replacing an exterior lamp or a small interior bulb, checking by location helps reduce guesswork and makes it easier to compare the old bulb with the replacement before installation.
The 2003 Toyota Avalon uses several different bulb types across the front, rear, and cabin lighting. Because trim and lighting package details can vary by market and body style, it is smart to verify the bulb position on your vehicle before ordering. This year page is meant to help you confirm the most common fitments in one place.
For best results, compare the bulb in your car with the listing on this page before you buy, especially if your Avalon has a trim-specific or market-specific lighting setup. Halogen bulbs and LED replacements are not always direct swaps, even when the base number looks similar, because beam pattern, polarity, and heat output can affect fitment and performance. If you are considering an aftermarket LED conversion, make sure the bulb will physically fit the housing and that it is compatible with the vehicle’s electrical system. When possible, check the installed bulb type first, since previous owners may have changed a bulb to a different style or an aftermarket version.
FAQ
What bulb does the 2003 Toyota Avalon use for the high beam headlight?
The high beam headlight bulb listed for the 2003 Toyota Avalon is 9005.
What is the daytime running light bulb size on this Avalon?
The daytime running light bulb size listed is 9005.
Which bulb fits the center high mount stop light?
The center high mount stop light bulb listed for this model is 921.
What bulb is used for the back up reverse light?
The back up reverse light bulb listed for the 2003 Toyota Avalon is 921.
What are the rear brake light and outer tail light bulb sizes?
Both the brake light bulb and the outer tail light bulb are listed as 7443R.
What bulb fits the rear turn signal?
The rear turn signal light bulb listed for this Avalon is 7440A.
What bulb sizes are used for the front turn signal, parking light, and front side marker?
The front turn signal light bulb, parking light bulb, and front side marker light bulb are all listed as 1157A.
What bulb is used for the rear side marker light?
The rear side marker light bulb listed is 194NA.
What bulb sizes are listed for the license plate lights?
The license plate light bulb sizes listed are 168 and 917.
What bulb fits the inner tail light?
The inner tail light bulb listed for the 2003 Toyota Avalon is 168 or 917.
What bulb is used for the dome, map, and courtesy lights?
The dome light bulb, map light bulb, and courtesy light bulb are all listed as 6418.
What bulb fits the glove box light?
The glove box light bulb listed is 37.
What bulb is used for the trunk or cargo area light?
The trunk or cargo area light bulb is listed as 2825 or 98.
Do bulb sizes vary on the 2003 Toyota Avalon?
Yes. Trim level, lighting package, body style, and market can change the exact bulb used, so it is best to confirm the bulb position on the vehicle before ordering.
Can I replace the original bulbs with LED bulbs?
Often yes, but fitment is not always plug-and-play. Check size, polarity, beam pattern, and compatibility with the housing before choosing LED replacements.