This page lists 27 electrical bulb & socket parts for the 2021 Audi Q7, across 6 part types, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
On the 2021 Audi Q7, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. Most of the listed parts are Fog / Driving Lamp Bulb (8 parts), Door Panel Light Bulb (7 parts) and Back Up / Reverse Lamp Bulb (6 parts). The other 3 part types cover the remaining 6 parts.
The 2021 Audi Q7 was sold with both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. All 27 parts on this page fit every engine.
3 brands supply electrical bulb & socket parts for the 2021 Audi Q7, led by SYLVANIA (17 parts), WAGNER (8 parts) and PHILIPS (2 parts). Quality grades include LED, Standard Replacement and Extended Life.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2021 Audi Q7. 6 parts have it, including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and SYLVANIA 2825LL (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: all 2021 Q7 engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: all 2021 Q7 engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Q7 engines | 921ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Q7 engines | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2021 Q7 engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current) | View on Amazon |
| SYLVANIA Fits: all 2021 Q7 engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | 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.
6 Back Up / Reverse Lamp Bulb parts for the 2021 Audi Q7 come from 2 brands — SYLVANIA and WAGNER. The "Popular" part is SYLVANIA 921LL. Every part fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged.
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, WAGNER and SYLVANIA supply 2 parts: built to original-equipment specification. A representative part number is WAGNER 921.
This group includes SYLVANIA 921LL and SYLVANIA 921ST and the remaining parts above.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Q7 engines | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Q7 engines | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Q7 engines | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| SYLVANIA Fits: all 2021 Q7 engines | 2825BLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| SYLVANIA Fits: all 2021 Q7 engines | 2825BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: all 2021 Q7 engines | 2825LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVOCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Q7 engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | 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.
SYLVANIA supplies the 7 Door Panel Light Bulb parts for the 2021 Audi Q7. SYLVANIA 2825LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Q7.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 2825LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 2825ST is listed in this group.
LED (instant-on, long life, energy-saving): 4 parts, from SYLVANIA. A representative part number is SYLVANIA 2825SL.
The Standard Replacement section: 1 option from SYLVANIA. SYLVANIA 2825 is listed in this group.
Part numbers include SYLVANIA 2825LL, SYLVANIA 2825ST and SYLVANIA 2825SL, among others listed above.
Fog / Driving Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2021 Q7 engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: all 2021 Q7 engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Q7 engines | 921ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Q7 engines | 921SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteLED | View on Amazon |
| SYLVANIA Fits: all 2021 Q7 engines | 921LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteZEVO | View on Amazon |
| WAGNER Fits: all 2021 Q7 engines | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2021 Q7 engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Type: T-5 Bulb 5/8 (16mm) DiameterVoltage: 12.800 Volts (Direct Current) | View on Amazon |
| SYLVANIA Fits: all 2021 Q7 engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
This table covers the bulbs in the fog and driving 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.
8 Fog / Driving Lamp Bulb parts are listed for the 2021 Audi Q7, from SYLVANIA and WAGNER. SYLVANIA 921LL carries the "Popular" badge. All of them fit every engine offered in the 2021 Q7.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 921LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 921ST is listed in this group.
LED (instant-on, long life, energy-saving): 3 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 921SL.
The Standard Replacement section: 2 options from WAGNER and SYLVANIA. WAGNER 921 is listed in this group.
Listed part numbers: SYLVANIA 921LL and SYLVANIA 921ST, plus the other parts above.
Headlamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 Q7 engines | D5S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam and Low BeamHid Type | View on Amazon |
This table covers the bulbs that light the headlamps. Typical signs include a dark lamp, a flicker over bumps, or a bulb that keeps failing on one side. Avoid touching a halogen capsule. Repeated failure in one socket is usually the socket or ground, not the bulb.
One part is listed for the 2021 Audi Q7 — WAGNER D5S.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2021 Q7 engines | 2821LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Q7 engines | 12256 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| SYLVANIA Fits: all 2021 Q7 engines | 2821 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Rear | View on Amazon |
This table covers the bulbs in the side-marker 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.
3 Side Marker Light Bulb parts for the 2021 Audi Q7 come from 2 brands — SYLVANIA and PHILIPS. Every part fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 2821LL.
Standard Replacement: 2 parts, from PHILIPS and SYLVANIA. A representative part number is PHILIPS 12256.
This group includes SYLVANIA 2821LL, PHILIPS 12256 and SYLVANIA 2821.
Turn Signal Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 Q7 engines | 12174SV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
| WAGNER Fits: all 2021 Q7 engines | 68161 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Frontwith HID Headlights | 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.
2 Turn Signal Lamp Bulb parts for the 2021 Audi Q7 come from 2 brands — PHILIPS and WAGNER. Every part fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged.
Part numbers include PHILIPS 12174SV and WAGNER 68161.
Buying Electrical Bulb & Socket Parts for a 2021 Audi Q7
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- You do not need to pick an engine: every electrical bulb & socket part on this page fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged.
- 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: Fog / Driving Lamp Bulb and Door Panel Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2021 Audi Q7?
Our catalog currently lists 27 electrical bulb & socket parts for the 2021 Audi Q7 across 6 subcategories and 3 brands, covering both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2021 Audi Q7 engines?
No. On this page every electrical bulb & socket part fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. You do not need to pick an engine to choose the right row — use the notes for position and trim.
What are the signs of electrical bulb & socket problems on a 2021 Audi Q7?
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 2021 Audi Q7 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 2021 Audi Q7?
Every part on this page already fits both the 2.0L L4 Turbocharged and the 3.0L V6 Turbocharged. 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 2021 Audi Q7
Electrical Bulb & Socket Parts for Other Audi Q7 Years
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