The 2019 GMC Terrain has 62 electrical bulb & socket parts with verified fitment on this page — 10 part types and 7 brands, covering both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2019 GMC Terrain, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. 30 parts of the 62 listed are Fog / Driving Lamp Bulb (11 parts), Brake Light Bulb (10 parts) and Back Up / Reverse Lamp Bulb (9 parts). The other 7 part types cover the remaining 32 parts.
The 2019 GMC Terrain was sold with both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 Turbocharged. All 62 parts on this page fit every engine.
7 brands supply electrical bulb & socket parts for the 2019 GMC Terrain, led by SYLVANIA (29 parts), WAGNER (12 parts) and HELLA (11 parts), plus 4 more brands. 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 2019 GMC Terrain. 14 parts have it, including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and SYLVANIA 7440LL (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 Fits: all 2019 Terrain engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| HELLA Fits: all 2019 Terrain engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentLong Life | View on Amazon |
| WAGNER Fits: all 2019 Terrain 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 2019 Terrain 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 2019 Terrain engines | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 Terrain engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE Fits: all 2019 Terrain engines | 13503360 | 🇺🇸 US 🇨🇦 CA | TRADE # W16WCLEAR | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER Fits: all 2019 Terrain engines | 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.
9 Back Up / Reverse Lamp Bulb parts for the 2019 GMC Terrain come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is SYLVANIA 921LL. Every part fits both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 Turbocharged.
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 4 parts: built to original-equipment specification. A representative part number is HELLA 921.
Listed part numbers: SYLVANIA 921LL, plus the other parts above.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2019 Terrain engines | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W3X16D | View on Amazon |
| WAGNER Fits: all 2019 Terrain engines | 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: all 2019 Terrain engines | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 Terrain engines | 7440RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 7440RSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 7440SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
| GM GENUINE Fits: all 2019 Terrain engines | 13596816 | 🇺🇸 US 🇨🇦 CA | Wattage: 21 | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
| WAGNER Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Single Contact Wedge Base21.000 Watt | 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.
10 Brake Light Bulb parts for the 2019 GMC Terrain come from 5 brands — SYLVANIA, WAGNER, PHILIPS and 2 other brands. The "Popular" part is SYLVANIA 7440LL. Every part fits both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 Turbocharged.
Extended Life: 2 parts, from SYLVANIA and WAGNER. 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.
The LED (instant-on, long life, energy-saving) section: 3 options from SYLVANIA and PHILIPS. PHILIPS 7440RLED is listed in this group.
Standard Replacement: 4 parts, from HELLA, GM GENUINE, SYLVANIA and 1 other brand. A representative part number is HELLA 7440.
Fog / Driving Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2019 Terrain engines | H11LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 Terrain engines | H1120 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | HalogenSocket Type Bulb: PGJ19-2 | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | H11XV | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Xtra VisionColor Temperature: 3200 KV | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | H11SU | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star UltraColor Temperature: 4100 KV | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | H11ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Color Temperature: 4000 KVSilver Star | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | H11SZGP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Silver Star zXe GOLDBase Type: PGJ19 | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2019 Terrain engines | H11LEDSP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDBase Type: PGJ19-2 | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | H11LEDHP | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED ULTRABase Type: PGJ19-2 | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2019 Terrain engines | H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: PGJ19-2 | View on Amazon |
| GM GENUINE Fits: all 2019 Terrain engines | 13503417 | 🇺🇸 US 🇨🇦 CA | FrontSLT Model | View on Amazon |
| HELLA Fits: all 2019 Terrain engines | H11 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
11 Fog / Driving Lamp Bulb parts are listed for the 2019 GMC Terrain, from SYLVANIA, HELLA and GM GENUINE. SYLVANIA H11LL carries the "Popular" badge. All of them fit every engine offered in the 2019 Terrain.
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: 3 options from SYLVANIA, GM GENUINE and HELLA. SYLVANIA H11 is listed in this group.
Headlamp Bulb
HID (intense white light)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2019 Terrain engines | D5S4300K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4300KSocket Type Bulb: PK32D-7 | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | D5S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam and Low Beamwith HID Headlights | View on Amazon |
| ÜRO PARTS Fits: all 2019 Terrain engines | D5S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam and Low Beam | View on Amazon |
| WAGNER Fits: all 2019 Terrain engines | D5S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam and Low BeamHid Type | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: all 2019 Terrain engines | 1219H16 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Low Beamwith Factory Halogens | 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.
5 Headlamp Bulb parts are listed for the 2019 GMC Terrain, from WAGNER, HELLA, SYLVANIA and 1 other brand. WAGNER 1219H16 carries the "Popular" badge. All of them fit every engine offered in the 2019 Terrain.
The HID (intense white light) section lists 4 options from HELLA, SYLVANIA, ÜRO PARTS and 1 other brand — grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. HELLA D5S4300K is listed in this group.
The Standard Replacement section: 1 option from WAGNER. WAGNER 1219H16 is listed in this group.
Listed part numbers: WAGNER 1219H16, HELLA D5S4300K and SYLVANIA D5S, plus the other parts above.
LED Bulb Adapter
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2019 Terrain engines | CBH8H11H16 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | For H8 / H11 / H16 Bulb | View on Amazon |
This table covers the LED Bulb adapters.
One part is listed for the 2019 GMC Terrain — WAGNER CBH8H11H16.
License Plate Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2019 Terrain 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 2019 Terrain 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 2019 Terrain engines | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 Terrain engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE Fits: all 2019 Terrain engines | 13500812 | 🇺🇸 US 🇨🇦 CA | TRADE # W5WLL | View on Amazon |
| HELLA Fits: all 2019 Terrain engines | 2825BL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
7 License Plate Lamp Bulb parts for the 2019 GMC Terrain come from 3 brands — SYLVANIA, HELLA and GM GENUINE. The "Popular" part is SYLVANIA 2825LL. Every part fits both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 Turbocharged.
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: 4 parts, from HELLA, GM GENUINE and SYLVANIA. A representative part number is HELLA 2825.
Listed part numbers: SYLVANIA 2825LL, SYLVANIA 2825ST and SYLVANIA 2825SL, plus the other parts above.
Parking Brake Warning Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA | Bulb Base Type: W3X16D | 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 7440.
Parking Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 Terrain engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Longer LifeNatural Amber | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeAmber | View on Amazon |
| WAGNER Fits: all 2019 Terrain engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2019 Terrain engines | 7444NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural Amber | 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.
4 Parking Lamp Bulb parts are listed for the 2019 GMC Terrain, from WAGNER, PHILIPS and SYLVANIA. All of them fit every engine offered in the 2019 Terrain.
The Extended Life section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 7444NALL is listed in this group.
The Standard Replacement section: 1 option from WAGNER. WAGNER 7444NA is listed in this group.
Part numbers include PHILIPS 7444NALL, among others listed above.
Tail Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2019 Terrain engines | 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: all 2019 Terrain engines | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2019 Terrain engines | 7440RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon LEDRed | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 Terrain engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 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.
6 Tail Lamp Bulb parts are listed for the 2019 GMC Terrain, from SYLVANIA, HELLA and PHILIPS. SYLVANIA 7440LL carries the "Popular" badge. All of them fit every engine offered in the 2019 Terrain.
The Extended Life section: 1 option from SYLVANIA. SYLVANIA 7440LL 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.
LED (instant-on, long life, energy-saving): 1 part, from PHILIPS. A representative part number is PHILIPS 7440RLED.
The Standard Replacement section: 3 options from HELLA and SYLVANIA. HELLA 2825 is listed in this group.
Listed part numbers: SYLVANIA 7440LL, SYLVANIA 7440ST and PHILIPS 7440RLED, plus the other parts above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: all 2019 Terrain engines | 7440LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W3X16D | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeAmber | View on Amazon |
| WAGNER Fits: all 2019 Terrain engines | 7444NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2019 Terrain engines | 7440ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W3X16D | View on Amazon |
| GM GENUINE Fits: all 2019 Terrain engines | 13579188 | 🇺🇸 US 🇨🇦 CA | Trade # 7444NAAmber Glass Bulb | View on Amazon |
| SYLVANIA Fits: all 2019 Terrain engines | 7440 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16DWattage: 25.00 W | View on Amazon |
| WAGNER Fits: all 2019 Terrain engines | 7444NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural 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.
8 Turn Signal Lamp Bulb parts for the 2019 GMC Terrain come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is SYLVANIA 7440LL. Every part fits both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 Turbocharged.
Extended Life: 3 parts, from SYLVANIA and WAGNER. 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: 4 parts, from HELLA, GM GENUINE, SYLVANIA and 1 other brand. A representative part number is HELLA 7440.
This group includes SYLVANIA 7440LL and SYLVANIA 7444NALL and the remaining parts above.
Buying Electrical Bulb & Socket Parts for a 2019 GMC Terrain
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 1.6L L4 DIESEL Turbocharged and the 2.0L L4 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 Brake Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2019 GMC Terrain?
Our catalog currently lists 62 electrical bulb & socket parts for the 2019 GMC Terrain across 10 subcategories and 7 brands, covering both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2019 GMC Terrain engines?
No. On this page every electrical bulb & socket part fits both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 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 2019 GMC Terrain?
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 GMC Terrain 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 GMC Terrain?
Every part on this page already fits both the 1.6L L4 DIESEL Turbocharged and the 2.0L L4 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 2019 GMC Terrain
Electrical Bulb & Socket Parts for Other GMC Terrain Years
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