This page lists 23 electrical bulb & socket parts for the 2012 Acura MDX, across 2 part types, covering the 3.7L V6 engine. Every part shows its brand, manufacturer part number and fitment notes.
The bulb and socket system on the 2012 Acura MDX covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. All 23 listed parts are Daytime Running Light Bulb (16 parts) and Back Up / Reverse Lamp Bulb (7 parts).
The 2012 Acura MDX came with a single engine, the 3.7L V6, and every part is verified against it.
3 brands supply electrical bulb & socket parts for the 2012 Acura MDX, led by SYLVANIA (10 parts), WAGNER (7 parts) and HELLA (6 parts). Quality grades include Extra Bright, Standard Replacement and Extended Life.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2012 Acura MDX. 6 parts have it, including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and HELLA 9005P50 (Daytime Running Light Bulb). Each part number opens a page with every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 921ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current) | View on Amazon |
This table covers the bulbs in the reverse lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
7 Back Up / Reverse Lamp Bulb parts for the 2012 Acura MDX come from 3 brands — SYLVANIA, WAGNER and HELLA. The "Popular" part is SYLVANIA 921LL.
In the Extended Life grade, SYLVANIA and WAGNER supply 2 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 921LL.
In the Extra Bright (improved visibility, but shorter life) grade, SYLVANIA supplies 1 part: grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 921ST.
The LED (instant-on, long life, energy-saving) section lists 1 option from WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. WAGNER 921WLED is listed in this group.
In the Standard Replacement grade, HELLA, SYLVANIA and WAGNER supply 3 parts: built to original-equipment specification. A representative part number is HELLA 921.
Part numbers include SYLVANIA 921LL and SYLVANIA 921ST, among others listed above.
Daytime Running Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 9005LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: P20D | View on Amazon |
| SYLVANIA | 9005LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 9005P50 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenPerformance 50+ | View on Amazon |
| HELLA | 9005100W | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: P20D | View on Amazon |
| SYLVANIA | 9005XV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA | 9005SU | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA | 9005ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver StarColor Temperature: 4000 KV | View on Amazon |
| SYLVANIA | 9005SZG | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star zXe GOLDColor Temperature: 4200 KV | View on Amazon |
| WAGNER | 9005TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HID Look | View on Amazon |
| WAGNER | 9005BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life80% More Light | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 9005SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Reduced Glare (for rain, fog, snow, or rural driving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 9005YL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Halogen2900K | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: P20D | View on Amazon |
| SYLVANIA Popular | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: P20D | View on Amazon |
| WAGNER Popular | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Voltage: 12.800 Volts (Direct Current) | View on Amazon |
| WAGNER | 9005L | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
This table covers the bulbs used as daytime running lamps. Typical signs include a dark lamp, flicker, or a bulb that keeps failing in one socket. If the same position keeps failing, replace the socket or repair the ground rather than chasing bulbs.
16 Daytime Running Light Bulb parts are listed for the 2012 Acura MDX, from SYLVANIA, HELLA and WAGNER. HELLA 9005P50 carries the "Popular" badge.
The Extended Life section: 2 options from HELLA and SYLVANIA. HELLA 9005LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 8 options from SYLVANIA, HELLA and WAGNER. HELLA 9005P50 is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from SYLVANIA. A representative part number is SYLVANIA 9005SL.
In the Reduced Glare (for rain, fog, snow, or rural driving) grade, HELLA supplies 1 part: grouped under the catalog's "Reduced Glare (for rain, fog, snow, or rural driving)" designation — the notes column spells out what sets them apart. A representative part number is HELLA 9005YL.
The Standard Replacement section: 4 options from WAGNER, HELLA and SYLVANIA. HELLA 9005 is listed in this group.
Buying Electrical Bulb & Socket Parts for a 2012 Acura MDX
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Confirm you have the 3.7L V6 engine — every part on this page is matched to it.
- Read the notes on each row for position, trim and spec qualifiers before you order.
- Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
- Cross-reference the manufacturer part number against your old part or a service-manual listing.
Start with the largest groups on this page: Daytime Running Light Bulb and Back Up / Reverse Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2012 Acura MDX?
Our catalog currently lists 23 electrical bulb & socket parts for the 2012 Acura MDX across 2 subcategories and 3 brands, covering the 3.7L V6 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical bulb & socket problems on a 2012 Acura MDX?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2012 Acura MDX was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2012 Acura MDX?
Every part on this page is matched to the 3.7L V6 engine. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2012 Acura MDX
Electrical Bulb & Socket Parts for Other Acura MDX Years
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Manufacturer names, model designations and part numbers are used for identification and fitment reference only. AutoFactsDB is an independent catalog and is not affiliated with, endorsed by, or sponsored by any vehicle manufacturer displayed on this page.