Acura MDX 2011 Bulb Size
Bulb size chart
This 2011 Acura MDX bulb size guide helps you verify the correct bulb by lighting position, so you can replace a failed lamp without guessing. The MDX uses different bulbs for the headlights, exterior signal lights, interior lamps, and cargo-area lighting, and the correct fit can vary by trim, lighting package, and market.
Use this page to match each bulb location on your 2011 Acura MDX with the listed size before ordering parts. Whether you are replacing a headlight, license plate light, reverse light, or cabin bulb, checking the position first is the easiest way to avoid buying the wrong bulb.
Fitment on the 2011 Acura MDX can differ depending on trim level, factory lighting package, and whether the vehicle uses halogen or HID-style components in a given position. Some owners also convert certain bulbs to LED aftermarket replacements, which can change brightness, color, and compatibility with the vehicle’s electrical system. Before you buy, it is smart to inspect the bulb already installed in your MDX and compare the base, connector, and shape with the bulb chart on this page. That is especially important for exterior lights such as the low beam, fog light, and turn signal positions, where aftermarket conversions may require additional parts or may not fit exactly like the original bulb.
FAQ
What bulb size does the 2011 Acura MDX use for the low beam headlight?
The 2011 Acura MDX uses a D2S bulb for the low beam headlight position.
What bulb size is used for the high beam headlight on this MDX?
The high beam headlight bulb size listed for the 2011 Acura MDX is 9005.
What bulb does the daytime running light use?
The daytime running light bulb size for the 2011 Acura MDX is 9005.
What is the reverse light bulb size on a 2011 Acura MDX?
The back up reverse light bulb size is 921.
What bulb fits the license plate lights?
The license plate light bulb size is 168, 917.
What size is the front turn signal bulb?
The front turn signal light bulb size listed for this model is 7440A.
What bulb is used for the rear turn signal?
The rear turn signal light bulb size is 7440.
What size are the front and rear side marker bulbs?
Both the front side marker light and rear side marker light use 168NA bulbs.
What bulb size is used for the fog lights?
The front fog light bulb is listed as H11 LED or H16 LED, depending on the setup.
Are the interior dome and map lights the same bulb size?
Yes, the dome light bulb and map light bulb are both listed as LED on this page, so check the installed bulb style before ordering a replacement.
What bulb fits the trunk or cargo area light?
The trunk or cargo area light uses a 168, 917 bulb.
What bulb size is used for the automatic transmission indicator light?
The automatic transmission indicator light bulb size is 2721.
What size is the interior door light bulb?
The interior door light bulb size is 158.
What bulb is used for the stepwell light?
The stepwell light bulb size is DE3021.
What bulb fits the vanity mirror light?
The vanity mirror light bulb size is 24.
Why should I check the bulb already installed before buying replacements?
Because trim and lighting package differences can affect fitment, and the installed bulb is the best confirmation of the correct base, shape, and size for your specific 2011 Acura MDX.