This page lists 48 electrical bulb & socket parts for the 2021 Buick Encore, across 7 part types, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Every part shows its brand, manufacturer part number and fitment notes.
The bulb and socket system on the 2021 Buick Encore covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. The largest groups are Headlamp Bulb (20 parts), Turn Signal Lamp Bulb (7 parts) and Brake Light Bulb (6 parts). The other 4 part types cover the remaining 15 parts.
The 2021 Buick Encore was sold with 3 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2021 Buick Encore electrical bulb & socket parts are SYLVANIA (25 parts), WAGNER (14 parts) and GM GENUINE (8 parts), plus 1 more brand. Quality grades include Standard Replacement, Extra Bright and Extended Life.
10 parts on this 2021 Buick Encore page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SYLVANIA 7443LL (Brake Light Bulb) and SYLVANIA H11LL (Headlamp Bulb). Click any part number to see every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 1.3L L3 Turbocharged | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 1.3L L3 Turbocharged | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 1.3L L3 Turbocharged | 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.
WAGNER supplies the 3 Back Up / Reverse Lamp Bulb parts for the 2021 Buick Encore.
The Extended Life section lists 1 option from WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. WAGNER 921LL is listed in this group.
In the LED (instant-on, long life, energy-saving) grade, WAGNER supplies 1 part: grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. A representative part number is WAGNER 921WLED.
The Standard Replacement section lists 1 option from WAGNER — built to original-equipment specification. WAGNER 921 is listed in this group.
This group includes WAGNER 921LL, WAGNER 921WLED and WAGNER 921.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | 7443LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16QLong Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.3L L3 Turbocharged | 7443ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.3L L3 Turbocharged | 7443RSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | 7443RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | 7443 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16QWattage: 5.30 W | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13591404 | 🇺🇸 US 🇨🇦 CA | W21/5WLL-M BULBExc. LED Rear Tail Lamp (UGE) | View on Amazon |
This table covers the bulbs in the stop 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 Brake Light Bulb parts are listed for the 2021 Buick Encore, from SYLVANIA and GM GENUINE. SYLVANIA 7443LL carries the "Popular" badge.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 7443LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section lists 1 option from SYLVANIA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. SYLVANIA 7443ST is listed in this group.
LED (instant-on, long life, energy-saving): 2 parts, from SYLVANIA. A representative part number is SYLVANIA 7443RSL.
The Standard Replacement section: 2 options from SYLVANIA and GM GENUINE. SYLVANIA 7443 is listed in this group.
Part numbers include SYLVANIA 7443LL, SYLVANIA 7443ST and SYLVANIA 7443RSL, among others listed above.
Headlamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | 1255H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.3L L3 Turbocharged | H11XV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | H11SU | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | H11ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | H9ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver StarColor Temperature: 4000 KV | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | H11SZGP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star zXe GOLDBase Type: PGJ19 | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | 9005TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HID Look | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | 9005BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life80% More Light | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | H11BLX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BritelitePGJ19-2 Base | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | H11TVX | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Truview Plus1.733 Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: PGJ19-2 | View on Amazon |
| WAGNER Popular Fits: 1.3L L3 Turbocharged | 9005 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Voltage: 12.800 Volts (Direct Current) | View on Amazon |
| WAGNER Popular Fits: 1.3L L3 Turbocharged | 1255H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Bulb Color: Clear | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13503417 | 🇺🇸 US 🇨🇦 CA | Low BeamTrade # 11 | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 84624411 | 🇺🇸 US 🇨🇦 CA | High BeamTRADE # H9 | View on Amazon |
| PHILIPS Fits: 1.3L L3 Turbocharged | H9 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | H9 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | 9005L | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | 1265H9 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High BeamHalogen | 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.
20 Headlamp Bulb parts for the 2021 Buick Encore come from 4 brands — WAGNER, SYLVANIA, GM GENUINE and 1 other brand. The "Popular" part is SYLVANIA H11LL.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11LL.
Extra Bright (improved visibility, but shorter life): 9 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA H11XV.
Standard Replacement: 9 parts, from WAGNER, SYLVANIA, GM GENUINE and 1 other brand. A representative part number is SYLVANIA H11.
LED Bulb Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 1.3L L3 Turbocharged | CB900590069012 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDFor 9005 / 9006 / 9012 Bulb | View on Amazon |
| WAGNER Fits: 1.3L L3 Turbocharged | CBH8H11H16 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | For H8 / H11 / H16 Bulb | View on Amazon |
This table covers the LED Bulb adapters.
2 LED Bulb Adapter parts for the 2021 Buick Encore come from WAGNER.
Listed part numbers: WAGNER CB900590069012 and WAGNER CBH8H11H16.
Step / Courtesy Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | 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: 1.3L L3 Turbocharged | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.3L L3 Turbocharged | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13503363 | 🇺🇸 US 🇨🇦 CA | CenterP-NUT SIZE | View on Amazon |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13500832 | 🇺🇸 US 🇨🇦 CA | Fits RearCLEAR | View on Amazon |
This table covers the bulbs in the step and courtesy 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 Step / Courtesy Light Bulb parts are listed for the 2021 Buick Encore, from SYLVANIA and GM GENUINE. SYLVANIA 2825LL carries the "Popular" badge.
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): 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825SL.
The Standard Replacement section: 3 options from GM GENUINE and SYLVANIA. SYLVANIA 2825 is listed in this group.
Listed part numbers: SYLVANIA 2825LL, SYLVANIA 2825ST and SYLVANIA 2825SL, plus the other parts above.
Tail Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 1.3L L3 Turbocharged | 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: 1.3L L3 Turbocharged | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13500812 | 🇺🇸 US 🇨🇦 CA | Trade # W5WLLExcept LED Rear Tail Lamp (UGE) | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | 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.
4 Tail Lamp Bulb parts for the 2021 Buick Encore come from 2 brands — SYLVANIA and GM GENUINE.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825ST.
Standard Replacement: 2 parts, from GM GENUINE and SYLVANIA. A representative part number is GM GENUINE 13500812.
Listed part numbers: SYLVANIA 2825LL, SYLVANIA 2825ST and GM GENUINE 13500812, plus the other parts above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | 7440ALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | AmberBase Type: W3X16D | View on Amazon |
| SYLVANIA Popular Fits: 1.3L L3 Turbocharged | 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: 1.3L L3 Turbocharged | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13503356 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE Fits: 1.3L L3 Turbocharged | 13596817 | 🇺🇸 US 🇨🇦 CA | Fits WY21W BULBFront Fog Lamp (T3U) | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
| SYLVANIA Fits: 1.3L L3 Turbocharged | 7440A | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Amber | 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.
7 Turn Signal Lamp Bulb parts are listed for the 2021 Buick Encore, from SYLVANIA and GM GENUINE. SYLVANIA 7440ALL carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA. SYLVANIA 7440ALL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 7440ST is listed in this group.
The Standard Replacement section: 4 options from GM GENUINE and SYLVANIA. GM GENUINE 13503356 is listed in this group.
Listed part numbers: SYLVANIA 7440ALL, SYLVANIA 7440LL and SYLVANIA 7440ST, plus the other parts above.
Buying Electrical Bulb & Socket Parts for a 2021 Buick Encore
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: Headlamp Bulb and Turn Signal Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2021 Buick Encore?
Our catalog currently lists 48 electrical bulb & socket parts for the 2021 Buick Encore across 7 subcategories and 4 brands, covering all 3 engine options (1.2L L3 Turbocharged, 1.3L L3 Turbocharged and 1.4L L4 Turbocharged). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2021 Buick Encore 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 2021 Buick Encore?
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 Buick Encore 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 Buick Encore?
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 2021 Buick Encore
Electrical Bulb & Socket Parts for Other Buick Encore Years
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