The 2019 Buick Cascada has 99 electrical bulb & socket parts with verified fitment on this page — 16 part types and 8 brands, covering the 1.6L L4 Turbocharged engine. Each part includes a manufacturer part number and application notes.
The bulb and socket system on the 2019 Buick Cascada covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. The largest groups are Headlamp Bulb (14 parts), Side Marker Light Bulb (14 parts) and Back Up / Reverse Lamp Bulb (10 parts). The other 13 part types cover the remaining 61 parts.
The 2019 Buick Cascada came with a single engine, the 1.6L L4 Turbocharged, and every part is verified against it.
8 brands supply electrical bulb & socket parts for the 2019 Buick Cascada, led by SYLVANIA (50 parts), HELLA (21 parts) and GM GENUINE (11 parts), plus 5 more brands. Quality grades include Standard Replacement, Extra Bright and Extended Life.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2019 Buick Cascada. 20 parts have it, including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and PHILIPS 1156RLED (Brake 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 | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| HELLA | 921LL | 🇺🇸 US | IncandescentLong Life | View on Amazon |
| WAGNER | 921LL | 🇺🇸 US | Long LifeWedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 921ST | 🇺🇸 US | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER | 921WLED | 🇺🇸 US | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 921 | 🇺🇸 US | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE | 13503360 | 🇺🇸 US 🇨🇦 CA | Trade # W16WExcept Left Hand Rule of The Road Headlamps (T94) | View on Amazon |
| HELLA | 7507 | 🇺🇸 US | IncandescentSocket Type Bulb: S8.5d or Socket Type Bulb: BAU15S | View on Amazon |
| SYLVANIA | 921 | 🇺🇸 US | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER | 921 | 🇺🇸 US | 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.
10 Back Up / Reverse Lamp Bulb parts for the 2019 Buick Cascada come from 4 brands — SYLVANIA, HELLA, WAGNER and 1 other brand. The "Popular" part is SYLVANIA 921LL.
In the Extended Life grade, SYLVANIA, HELLA and WAGNER supply 3 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, GM GENUINE, SYLVANIA and 1 other brand supply 5 parts: built to original-equipment specification. A representative part number is HELLA 921.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | 7506ALL | 🇺🇸 US | IncandescentAmber | View on Amazon |
| HELLA | 7506LL | 🇺🇸 US | IncandescentLong Life | View on Amazon |
| SYLVANIA | 7506LL | 🇺🇸 US | Long LifeBase Type: BA15S | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 7506ST | 🇺🇸 US | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular | 1156RLED | 🇺🇸 US | VisionLED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 7506 | 🇺🇸 US | IncandescentSocket Type Bulb: BA15S | View on Amazon |
| HELLA | 7506A | 🇺🇸 US | IncandescentBulb Diameter: 26.5 mm | View on Amazon |
| HELLA | 7506NA | 🇺🇸 US | IncandescentNatural Amber | View on Amazon |
| SYLVANIA | 7506 | 🇺🇸 US | Base Type: BA15SWattage: 25.00 W | 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.
9 Brake Light Bulb parts for the 2019 Buick Cascada come from 3 brands — HELLA, SYLVANIA and PHILIPS. The "Popular" part is PHILIPS 1156RLED.
Extended Life: 3 parts, from HELLA and SYLVANIA. A representative part number is HELLA 7506ALL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 7506ST.
The LED (instant-on, long life, energy-saving) section: 1 option from PHILIPS. PHILIPS 1156RLED is listed in this group.
Standard Replacement: 4 parts, from HELLA and SYLVANIA. A representative part number is HELLA 7506.
This group includes PHILIPS 1156RLED, HELLA 7506ALL and HELLA 7506LL and the remaining parts above.
Cornering Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | H7LL | 🇺🇸 US | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | H7XV | 🇺🇸 US | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA | H7ST | 🇺🇸 US | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA | H7SU | 🇺🇸 US | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA | H7SZG | 🇺🇸 US | Silver Star zXe GOLDColor Temperature: 4200 KV | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | H7 | 🇺🇸 US | HalogenSocket Type Bulb: PX26D | View on Amazon |
| SYLVANIA | H7 | 🇺🇸 US | Base Type: PX26DWattage: 55.00 W | View on Amazon |
This table covers the replacement bulbs for the Cornering 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.
7 Cornering Lamp Bulb parts for the 2019 Buick Cascada come from 2 brands — SYLVANIA and HELLA. The "Popular" part is SYLVANIA H7XV.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA H7LL.
Extra Bright (improved visibility, but shorter life): 4 parts, from SYLVANIA. A representative part number is SYLVANIA H7XV.
Standard Replacement: 2 parts, from HELLA and SYLVANIA. A representative part number is HELLA H7.
This group includes SYLVANIA H7XV, SYLVANIA H7LL and SYLVANIA H7ST and the remaining parts above.
Fog / Driving Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | H11LL | 🇺🇸 US | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA | H1120 | 🇺🇸 US | HalogenSocket Type Bulb: PGJ19-2 | View on Amazon |
| SYLVANIA | H11XV | 🇺🇸 US | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA | H11SU | 🇺🇸 US | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA | H11ST | 🇺🇸 US | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA | H11SZGP | 🇺🇸 US | Silver Star zXe GOLDBase Type: PGJ19 | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | H11LEDSP | 🇺🇸 US | LEDBase Type: PGJ19-2 | View on Amazon |
| SYLVANIA | H11LEDHP | 🇺🇸 US | LED ULTRABase Type: PGJ19-2 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | H11 | 🇺🇸 US | Base Type: PGJ19-2 | View on Amazon |
| HELLA | H11 | 🇺🇸 US | HalogenSocket Type Bulb: PGJ19-2 or Socket Type Bulb: PGJY19-2 | 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.
10 Fog / Driving Lamp Bulb parts are listed for the 2019 Buick Cascada, from SYLVANIA and HELLA. SYLVANIA H11LL carries the "Popular" badge.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA H11LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 5 options from SYLVANIA and HELLA. HELLA H1120 is listed in this group.
LED (instant-on, long life, energy-saving): 2 parts, from SYLVANIA. A representative part number is SYLVANIA H11LEDSP.
The Standard Replacement section: 2 options from SYLVANIA and HELLA. SYLVANIA H11 is listed in this group.
Glove Box Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13500832 | 🇺🇸 US 🇨🇦 CA | Clear | 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.
One part is listed for the 2019 Buick Cascada — GM GENUINE 13500832.
Headlamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | H7LL | 🇺🇸 US | Long Life | View on Amazon |
| WAGNER | 1255H7LL | 🇺🇸 US | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | H7XV | 🇺🇸 US | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA | H7ST | 🇺🇸 US | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA | H7SU | 🇺🇸 US | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA | H7SZG | 🇺🇸 US | Silver Star zXe GOLDColor Temperature: 4200 KV | View on Amazon |
HID (intense white light)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA | D3S | 🇺🇸 US | High Beam and Low Beam | View on Amazon |
| HELLA | D3S4300K | 🇺🇸 US | 4300KSocket Type Bulb: PK32D-5 | View on Amazon |
| SYLVANIA | D3S | 🇺🇸 US 🇨🇦 CA | Dual BeamHIGH BEAM & LOW BEAM | View on Amazon |
| WAGNER | D3S | 🇺🇸 US | with Xenon Gas | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | H7 | 🇺🇸 US | HalogenSocket Type Bulb: PX26D | View on Amazon |
| WAGNER Popular | 1255H7 | 🇺🇸 US | High BeamHalogen Capsule | View on Amazon |
| GM GENUINE | 13586976 | 🇺🇸 US 🇨🇦 CA | LED Daytime Running Lamps (T3S), High Intensity Discharge Headlamps (T4F) | View on Amazon |
| SYLVANIA | H7 | 🇺🇸 US | Base Type: PX26DWattage: 55.00 W | 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.
14 Headlamp Bulb parts are listed for the 2019 Buick Cascada, from SYLVANIA, WAGNER, HELLA and 2 other brands. SYLVANIA H7XV carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA H7LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 4 options from SYLVANIA. SYLVANIA H7XV is listed in this group.
The HID (intense white light) section lists 4 options from AUTOTECNICA, HELLA, SYLVANIA and 1 other brand — grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. AUTOTECNICA D3S is listed in this group.
The Standard Replacement section: 4 options from HELLA, WAGNER, GM GENUINE and 1 other brand. HELLA H7 is listed in this group.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| STANDARD MOTOR PRODUCTS | HP4355 | 🇺🇸 US | Handy PackBlack | View on Amazon |
| STANDARD MOTOR PRODUCTS | S900 | 🇺🇸 US | Connector Shape: Rectangleblack | View on Amazon |
This table covers the sockets that hold a headlamp bulb in the housing. Typical signs include a flicker over bumps, melted plastic, or a bulb that will not stay seated. Dielectric grease on the contacts slows corrosion. Do not force a bulb into a heat-damaged socket.
STANDARD MOTOR PRODUCTS supplies both parts for the 2019 Buick Cascada.
Part numbers include STANDARD MOTOR PRODUCTS HP4355 and STANDARD MOTOR PRODUCTS S900.
License Plate Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 2825LL | 🇺🇸 US | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825ST | 🇺🇸 US | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825SL | 🇺🇸 US | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 2825 | 🇺🇸 US | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE | 13503401 | 🇺🇸 US 🇨🇦 CA | T3-1/4 MINIATURE WEDGE BASE | View on Amazon |
| GM GENUINE | 93190471 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| GM GENUINE | 13503359 | 🇺🇸 US 🇨🇦 CA | SIDE MARKER SOCKET | View on Amazon |
| HELLA | 2825BL | 🇺🇸 US | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA | 2825 | 🇺🇸 US | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
This table covers the bulbs that light the license plate. 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.
9 License Plate Lamp Bulb parts for the 2019 Buick Cascada come from 3 brands — SYLVANIA, GM GENUINE and HELLA. The "Popular" part is SYLVANIA 2825LL.
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.
The LED (instant-on, long life, energy-saving) section: 1 option from SYLVANIA. SYLVANIA 2825SL is listed in this group.
Standard Replacement: 6 parts, from GM GENUINE, HELLA and SYLVANIA. A representative part number is HELLA 2825.
Part numbers include SYLVANIA 2825LL, SYLVANIA 2825ST and SYLVANIA 2825SL, among others listed above.
Map / Reading Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 2825LL | 🇺🇸 US | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825ST | 🇺🇸 US | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 2825SL | 🇺🇸 US | LEDCool White | View on Amazon |
| SYLVANIA | 2825BLED | 🇺🇸 US | ZEVO | View on Amazon |
| SYLVANIA | 2825BSL | 🇺🇸 US | LED | View on Amazon |
| SYLVANIA | 2825LED | 🇺🇸 US | ZEVOCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 2825 | 🇺🇸 US | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | 2825 | 🇺🇸 US 🇨🇦 CA | Map LightBulb | View on Amazon |
This table covers the bulbs in the map / reading 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 Map / Reading Light Bulb parts for the 2019 Buick Cascada come from 2 brands — SYLVANIA and PEAK. The "Popular" part is SYLVANIA 2825LL.
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.
The LED (instant-on, long life, energy-saving) section: 4 options from SYLVANIA. SYLVANIA 2825SL is listed in this group.
Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825.
1 further part sits outside the graded sections, with the same engine-level match.
Listed part numbers: SYLVANIA 2825LL, SYLVANIA 2825ST and SYLVANIA 2825SL, plus the other parts above.
Overhead Console Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | 168 | 🇺🇸 US 🇨🇦 CA | Console LightAt Floor Console | View on Amazon |
This table covers the replacement bulbs for the Overhead Console 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.
This group shows a single part: PEAK 168.
Parking Brake Warning Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK | 7506 | 🇺🇸 US 🇨🇦 CA | Stop LightBulb | View on Amazon |
This table covers the replacement bulbs for the Parking Brake Warning 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.
This group shows a single part: PEAK 7506.
Parking Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS | 7444NALL | 🇺🇸 US | Longer LifeNatural Amber | View on Amazon |
| SYLVANIA | 7444NALL | 🇺🇸 US | Long LifeAmber | View on Amazon |
This table covers the bulbs in the parking 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 Parking Lamp Bulb parts are listed for the 2019 Buick Cascada, from PHILIPS and SYLVANIA.
Listed part numbers: PHILIPS 7444NALL, plus the other parts above.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 168LL | 🇺🇸 US | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| SYLVANIA | 2825LL | 🇺🇸 US | Long LifeBase Type: W2.1x9.5d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 168ST | 🇺🇸 US | Cool WhiteSilver Star | View on Amazon |
| SYLVANIA | 2825ST | 🇺🇸 US | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 168SL | 🇺🇸 US | LEDCool White | View on Amazon |
| SYLVANIA | 2825SL | 🇺🇸 US | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 2825 | 🇺🇸 US | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Popular | 168 | 🇺🇸 US | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE | 13503401 | 🇺🇸 US 🇨🇦 CA | FrontT3-1/4 MINIATURE WEDGE BASE | View on Amazon |
| GM GENUINE | L168 | 🇺🇸 US 🇨🇦 CA | Bulb Technology: IncandescentHeight: 2 in | View on Amazon |
| GM GENUINE | 13503359 | 🇺🇸 US 🇨🇦 CA | FrontSIDE MARKER SOCKET | View on Amazon |
| HELLA | 2825BL | 🇺🇸 US | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA | 2825 | 🇺🇸 US | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| SYLVANIA | 168 | 🇺🇸 US | Base Type: W2.1x9.2dWattage: 4.90 W | 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.
14 Side Marker Light Bulb parts for the 2019 Buick Cascada come from 3 brands — SYLVANIA, HELLA and GM GENUINE. The "Popular" part is SYLVANIA 168LL.
Extended Life: 2 parts, from SYLVANIA. A representative part number is SYLVANIA 168LL.
Extra Bright (improved visibility, but shorter life): 2 parts, from SYLVANIA. A representative part number is SYLVANIA 168ST.
The LED (instant-on, long life, energy-saving) section: 2 options from SYLVANIA. SYLVANIA 168SL is listed in this group.
Standard Replacement: 8 parts, from HELLA, GM GENUINE and SYLVANIA. A representative part number is HELLA 2825.
Step / Courtesy Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13500832 | 🇺🇸 US 🇨🇦 CA | 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.
This group shows a single part: GM GENUINE 13500832.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE | 13503445 | 🇺🇸 US 🇨🇦 CA | Amber | View on Amazon |
| HELLA | 2825 | 🇺🇸 US | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA | 7506 | 🇺🇸 US | IncandescentSocket Type Bulb: BA15S | 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.
3 Tail Lamp Bulb parts are listed for the 2019 Buick Cascada, from HELLA and GM GENUINE.
Part numbers include GM GENUINE 13503445, HELLA 2825 and HELLA 7506.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular | 7444NALL | 🇺🇸 US | Longer LifeNatural Amber | View on Amazon |
| PHILIPS | P215WLL | 🇺🇸 US | Longer Life | View on Amazon |
| SYLVANIA | 7507LL | 🇺🇸 US | AmberLong Life | View on Amazon |
| SYLVANIA | 7444NALL | 🇺🇸 US | Long LifeAmber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular | 7507 | 🇺🇸 US | IncandescentSocket Type Bulb: S8.5d or Socket Type Bulb: BAU15S | View on Amazon |
| PHILIPS | P215W | 🇺🇸 US | RearIn Tail Lamp | View on Amazon |
| SYLVANIA | 7507 | 🇺🇸 US | Rear | 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 for the 2019 Buick Cascada come from 3 brands — PHILIPS, SYLVANIA and HELLA. The "Popular" part is PHILIPS 7444NALL.
Extended Life: 4 parts, from PHILIPS and SYLVANIA. A representative part number is PHILIPS 7444NALL.
Standard Replacement: 3 parts, from HELLA, PHILIPS and SYLVANIA. A representative part number is HELLA 7507.
Part numbers include PHILIPS 7444NALL, PHILIPS P215WLL and SYLVANIA 7507LL, among others listed above.
Buying Electrical Bulb & Socket Parts for a 2019 Buick Cascada
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 1.6L L4 Turbocharged 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: Headlamp Bulb and Side Marker Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2019 Buick Cascada?
Our catalog currently lists 99 electrical bulb & socket parts for the 2019 Buick Cascada across 16 subcategories and 8 brands, covering the 1.6L L4 Turbocharged engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical bulb & socket problems on a 2019 Buick Cascada?
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 2019 Buick Cascada 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 2019 Buick Cascada?
Every part on this page is matched to the 1.6L L4 Turbocharged 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 2019 Buick Cascada
Electrical Bulb & Socket Parts for Other Buick Cascada 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.