What is the low beam headlight bulb size for a 2009 Acura MDX?

The 2009 Acura MDX uses a HID-D2S HID bulb for the low beam headlights. We recommend upgrading to LED for better visibility.

What is the high beam headlight bulb size for a 2009 Acura MDX?

The high beam bulb size for the 2009 Acura MDX is 9005 LED.

Why are my 2009 Acura MDX headlights dim?

Dim headlights on a 2009 Acura MDX can be caused by aging halogen bulbs, which lose brightness over time, or oxidation (cloudiness) on the plastic headlight lenses. Upgrading to a HID-D2S HID LED conversion kit can provide a significantly brighter and whiter light output.

Which bulb fits the 2009 Acura MDX fog light?

The 2009 Acura MDX uses a H11 LED bulb for the fog light position.

Is the 2009 Acura MDX single or dual beam?

The 2009 Acura MDX uses a dual bulb headlight system. This means you have separate bulbs for high and low beams.

Can I install LED bulbs on my 2009 Acura MDX?

Yes, the 2009 Acura MDX comes with standard halogen bulbs from the factory, but they can be upgraded to LED. You will need a HID-D2S HID LED conversion kit for the low beams.

Does the 2009 Acura MDX have fog lights?

Yes, the 2009 Acura MDX takes a H11 LED bulb for the fog light position.

How do I change the headlight on a 2009 Acura MDX?

Turn off the vehicle and open the hood. Locate the headlight assembly from behind, remove the dust cover or retaining clip, disconnect the wiring harness, twist the old HID-D2S HID bulb counter-clockwise to remove it, then insert the new bulb and reassemble. The whole process typically takes 10 to 30 minutes per side depending on accessibility.

Are LED headlights legal for a 2009 Acura MDX?

LED bulbs used off-road or in auxiliary lights are legal everywhere. For on-road headlight use, legality varies by state. Many states allow LED retrofits as long as the beam pattern meets DOT standards. For the best legal compliance, choose a DOT-approved HID-D2S HID LED kit that is designed as a direct replacement and produces a proper cutoff pattern without excessive glare.

How much does it cost to replace 2009 Acura MDX headlights?

A pair of HID HID-D2S HID bulbs costs $50 to $150. If you have a shop do the work, expect an additional $20 to $50 in labor per bulb. Replacing them yourself at home saves the labor cost and usually takes under 30 minutes.

What is the difference between halogen and LED for a 2009 Acura MDX?

Halogen bulbs produce a warm yellow light (around 3200K), last 500 to 1000 hours, and draw more power. LED bulbs emit a brighter white light (5000-6000K), last 25,000+ hours, and use less energy. LED upgrades for the HID-D2S HID position are available as direct plug-and-play replacements.

This vehicle is part of the 2007–2009 Acura MDX generation. All models in this range share identical light bulb sizes.

Fitment Guaranteed for 2009 Acura MDX

What Size Bulbs Does a 2009 Acura MDX Use?

Correct headlight, fog light, and tail light bulb sizes. Sourced from OEM catalog data.

Installation Difficulty

Easy (Plug and Play)

Est. Replacement Cost

$50 - $150 (HID System)

What Lighting System Does the 2009 Acura MDX Have?

The 2009 Acura MDX utilizes a refined lighting configuration featuring 13 distinct bulb positions. It features an extensive lighting system powered by premium factory HID/Xenon technology utilizing D2S HID projector housings for high-intensity output. This model belongs to the mid years of the MDX's 2004-2020 production span.

Can You Put LED Bulbs in a 2009 Acura MDX?

The 2009 Acura MDX is already equipped with factory D2S HID HID/Xenon headlights. Since HID technology already provides exceptional brightness, we recommend staying with high-quality OEM replacement bulbs rather than attempting an LED retrofit for the primary headlights. However, the H11 LED fog lights are typically halogen and are excellent candidates for an LED upgrade to match the color temperature of your HID headlights.

2009 Acura MDX Bulb Size Chart

Position	Bulb Size	Shop
Low Beam	HID-D2S HID	Buy HID-D2S HID →
High Beam	9005 LED	Buy 9005 LED →
Fog Light	H11 LED	Buy H11 LED →
Brake Light	LED Bulb	Buy LED Bulb →
Dome Light	2825	Buy 2825 →
Side Marker	168	Buy 168 →
Turn Signal Front	7440A	Buy 7440A →
License Plate	168	Buy 168 →
Map Light	2825	Buy 2825 →
Parking Light	168	Buy 168 →
Turn Signal Rear	7440	Buy 7440 →
Reverse Light	921	Buy 921 →
Trunk Light	DE3175	Buy DE3175 →