
PIAA 19615 9005 (HB3) Xtreme White Plus
$64.57
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Used for: Headlight Bulb High Beam, Daytime Running Light Bulb
Used for: Headlight Bulb Low Beam
Used for: Back Up Reverse Light Bulb
Used for: Brake Light Bulb, Tail Light Bulb
Used for: Center High Mount Stop Light Bulb
Used for: License Plate Light Bulb, Stepwell Light Bulb
Used for: License Plate Light Bulb, Stepwell Light Bulb
Used for: Parking Light Bulb, Turn Signal Light Bulb Front
Used for: Side Marker Light Bulb Front
Used for: Side Marker Light Bulb Rear
Used for: Turn Signal Light Bulb Rear
Used for: Automatic Transmission Indicator Light Bulb
Used for: Dome Light Bulb
Used for: Glove Box Light Bulb
Used for: Interior Door Light Bulb
Used for: Interior Door Light Bulb
Used for: Map Light Bulb, Reading Light Bulb Rear
Used for: Map Light Bulb, Reading Light Bulb Rear
Used for: Trunk or Cargo Area Light
Used for: Vanity Mirror Light Bulb
This page covers the 2005 Acura MDX and helps you verify bulb sizes by lighting position, so you can match the correct replacement before you buy. Because trim and lighting package details can vary by market and body style, it is always smart to confirm the bulb type for the exact lamp you are replacing.
For this MDX, the listed bulb sizes include 9005 for the high beam headlight and daytime running light, H11 for the low beam headlight, 921 for the back up reverse light, and 3457 for the front turn signal and parking light. Other common positions use sizes such as 7443R for the brake and tail lights, 7440A for the rear turn signal, and several interior and courtesy lamps with smaller festoon or wedge-style bulbs.
Fitment can differ between trims, option packages, and regional lighting setups, so compare the bulb in your vehicle before ordering, especially if your MDX has been modified or uses aftermarket housings. Halogen bulbs are the factory-style choice for many positions, while LED upgrades may require a different bulb shape, polarity awareness, or added resistors to avoid warning lights or fast flashing. If you are converting from halogen to LED, check beam pattern and housing compatibility, since a bulb that fits physically may still perform poorly in a reflector or projector assembly. The safest approach is to inspect the installed bulb, match the base and size, and then purchase replacements with confidence.
The low beam headlight bulb size listed for the 2005 Acura MDX is H11.
The high beam headlight bulb size is 9005.
Yes. The daytime running light bulb size listed for this year MDX is also 9005.
The back up reverse light bulb size is 921.
The front turn signal light bulb size is 3457.
The parking light bulb size listed for the 2005 Acura MDX is 3457.
The rear turn signal light bulb size is 7440A.
Both the brake light and tail light bulb sizes are listed as 7443R.
The center high mount stop light bulb size is 7440.
The license plate light bulb size can be 168 or 917.
The dome light bulb size is DE3175, and the glove box light bulb size is DE3021.
Yes. The interior door light and stepwell light bulb sizes are listed as 194 or 7441.
Check the installed bulb and compare it with the position-specific listing on the page. Trim, package, and market differences can change the fitment, so the bulb in the vehicle is the best final reference.
Yes, many positions can be upgraded to LED, but fitment and function should be checked carefully. Some LEDs may need polarity correction, resistors, or compatible housings to work properly and avoid flicker or warning issues.