The 2020 Acura TLX has 29 electrical bulb & socket parts with verified fitment on this page — 6 part types and 4 brands, covering all 3 engine options (2.4L L4, 3.5L V6 DOHC and 3.5L V6 SOHC). Each part includes a manufacturer part number and application notes.
On the 2020 Acura TLX, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. 20 parts of the 29 listed are Trunk / Cargo Area Light Bulb (8 parts), Back Up / Reverse Lamp Bulb (7 parts) and Door Panel Light Bulb (5 parts). The other 3 part types cover the remaining 9 parts.
The 2020 Acura TLX was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
4 brands supply electrical bulb & socket parts for the 2020 Acura TLX, led by SYLVANIA (14 parts), WAGNER (7 parts) and HELLA (7 parts), plus 1 more brand. Quality grades include Standard Replacement, Extended Life and Extra Bright.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Acura TLX. 5 parts have it, including SYLVANIA 7440LL (Back Up / Reverse Lamp Bulb) and HELLA 158 (Door Panel 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 Fits: 2.4L L4, 3.5L V6 SOHC | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W3X16D | View on Amazon |
| WAGNER Fits: 2.4L L4, 3.5L V6 SOHC | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeSingle Contact Wedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 2.4L L4, 3.5L V6 SOHC | 7440WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 2.4L L4, 3.5L V6 SOHC | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
| WAGNER Fits: 2.4L L4, 3.5L V6 SOHC | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Single Contact Wedge Base21.000 Watt | 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 2020 Acura TLX come from 3 brands — SYLVANIA, WAGNER and HELLA. The "Popular" part is SYLVANIA 7440LL.
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 7440LL.
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 7440ST.
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 7440WLED 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 7440.
Listed part numbers: SYLVANIA 7440LL and SYLVANIA 7440ST, plus the other parts above.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 158LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 2.4L L4, 3.5L V6 SOHC | 158LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 2.4L L4, 3.5L V6 SOHC | 158 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 158 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WAGNER Fits: 2.4L L4, 3.5L V6 SOHC | 158 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base3.360 Watt | View on Amazon |
This table covers the replacement bulbs for the Door Panel Light. 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.
5 Door Panel Light Bulb parts are listed for the 2020 Acura TLX, from SYLVANIA, WAGNER and HELLA. HELLA 158 carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 158LL is listed in this group.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 158 is listed in this group.
Listed part numbers: HELLA 158 and SYLVANIA 158LL, plus the other parts above.
Glove Box Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 2721LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: Wedge | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.4L L4, 3.5L V6 SOHC | 74 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| PHILIPS Fits: 2.4L L4, 3.5L V6 SOHC | 74 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 2721 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the bulbs in the glove-box lamp. 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.
4 Glove Box Light Bulb parts are listed for the 2020 Acura TLX, from SYLVANIA, HELLA and PHILIPS.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 2721LL is listed in this group.
The Standard Replacement section: 3 options from HELLA, PHILIPS and SYLVANIA. HELLA 74 is listed in this group.
This group includes SYLVANIA 2721LL and HELLA 74 and the remaining parts above.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.4L L4, 3.5L V6 SOHC | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
This table covers the bulbs in the tail 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.
One part is listed for the 2020 Acura TLX — HELLA 7440.
Trunk / Cargo Area Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.4L L4, 3.5L V6 SOHC | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentLong Life | View on Amazon |
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 2.4L L4, 3.5L V6 SOHC | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 168ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 168SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 2.4L L4, 3.5L V6 SOHC | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| WAGNER Popular Fits: 2.4L L4, 3.5L V6 SOHC | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base4.900 Watt | View on Amazon |
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 4.90 W | View on Amazon |
This table covers the bulbs in the trunk or cargo-area lamp. 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.
8 Trunk / Cargo Area Light Bulb parts are listed for the 2020 Acura TLX, from SYLVANIA, HELLA and WAGNER. HELLA 168 carries the "Popular" badge.
The Extended Life section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 168LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 168ST is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from SYLVANIA. A representative part number is SYLVANIA 168SL.
The Standard Replacement section: 3 options from HELLA, WAGNER and SYLVANIA. HELLA 168 is listed in this group.
This group includes HELLA 168 and HELLA 168LL and the remaining parts above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W3X16D | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.4L L4, 3.5L V6 SOHC | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
| SYLVANIA Fits: 2.4L L4, 3.5L V6 SOHC | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
This table covers the bulbs in the turn-signal 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.
4 Turn Signal Lamp Bulb parts for the 2020 Acura TLX come from 2 brands — SYLVANIA and HELLA.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 7440LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 7440ST.
Standard Replacement: 2 parts, from HELLA and SYLVANIA. A representative part number is HELLA 7440.
Part numbers include SYLVANIA 7440LL, SYLVANIA 7440ST and HELLA 7440, among others listed above.
Buying Electrical Bulb & Socket Parts for a 2020 Acura TLX
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Match the engine first. Every electrical bulb & socket part here is engine-specific; each row shows which engine(s) it fits.
- 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: Trunk / Cargo Area Light Bulb and Back Up / Reverse Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2020 Acura TLX?
Our catalog currently lists 29 electrical bulb & socket parts for the 2020 Acura TLX across 6 subcategories and 4 brands, covering all 3 engine options (2.4L L4, 3.5L V6 DOHC and 3.5L V6 SOHC). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2020 Acura TLX engines?
Yes. Every electrical bulb & socket part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical bulb & socket problems on a 2020 Acura TLX?
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 2020 Acura TLX 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 2020 Acura TLX?
First match the engine — each row shows which engine(s) the part fits. 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 2020 Acura TLX
Electrical Bulb & Socket Parts for Other Acura TLX Years
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