65 Electrical bulb & socket parts are listed for the 2017 Cadillac CTS, in 11 part types, covering all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged). Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2017 Cadillac CTS, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. 31 parts of the 65 listed are Headlamp Bulb (14 parts), Dome Light Bulb (9 parts) and Back Up / Reverse Lamp Bulb (8 parts). The other 8 part types cover the remaining 34 parts.
The 2017 Cadillac CTS was sold with 4 engines. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
The most listed brands for 2017 Cadillac CTS electrical bulb & socket parts are SYLVANIA (21 parts), WAGNER (17 parts) and HELLA (11 parts), plus 7 more brands. Quality grades include Standard Replacement, Extended Life and LED.
14 parts on this 2017 Cadillac CTS page carry a "Popular" badge — the source catalog's flag for options frequently chosen for this vehicle — including SYLVANIA 921LL (Back Up / Reverse Lamp Bulb) and HELLA 921LED5K (Dome Light 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 |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 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: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 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: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 13503360 | 🇺🇸 US 🇨🇦 CA | Luxury or Premium LuxuryTRADE # W16W | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 921 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 W | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 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.
8 Back Up / Reverse Lamp Bulb parts are listed for the 2017 Cadillac CTS, from SYLVANIA, WAGNER, HELLA and 1 other brand. SYLVANIA 921LL carries the "Popular" badge.
The Extended Life section lists 2 options from SYLVANIA and WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. SYLVANIA 921LL 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 921ST 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 4 options from HELLA, GM GENUINE, SYLVANIA and 1 other brand — built to original-equipment specification. HELLA 921 is listed in this group.
Listed part numbers: SYLVANIA 921LL and SYLVANIA 921ST, plus the other parts above.
Dome Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 17177LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeW2.1x9.5d Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 921LED5K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED Miniature Bulb with Color Temperature of 5000KSocket Type Bulb: SV8.5-8 | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | T10LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Tru View PLUS LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 17177 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | W2.1x9.5d Base5.000 Watt | View on Amazon |
This table covers the bulbs in the dome 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.
9 Dome Light Bulb parts are listed for the 2017 Cadillac CTS, from SYLVANIA, WAGNER and HELLA. HELLA 921LED5K carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. 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): 3 parts, from HELLA, SYLVANIA and WAGNER. A representative part number is HELLA 921LED5K.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 2825 is listed in this group.
This group includes HELLA 921LED5K, SYLVANIA 2825LL and WAGNER 17177LL and the remaining parts above.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 9.00 W | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base8.970 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 for the 2017 Cadillac CTS come from 2 brands — SYLVANIA and WAGNER. The "Popular" part is SYLVANIA 906LL.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 906LL.
The LED (instant-on, long life, energy-saving) section: 1 option from SYLVANIA. SYLVANIA 906SL is listed in this group.
Standard Replacement: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 906.
Listed part numbers: SYLVANIA 906LL and SYLVANIA 906SL, plus the other parts above.
Glove Box Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | L906 | 🇺🇸 US 🇨🇦 CA | GoldTerminal Type: Spade | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 9.00 W | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 906 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wedge Base8.970 Watt | 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.
5 Glove Box Light Bulb parts for the 2017 Cadillac CTS come from 3 brands — SYLVANIA, WAGNER and ACDELCO. The "Popular" part is SYLVANIA 906LL.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 906LL.
Standard Replacement: 3 parts, from ACDELCO, SYLVANIA and WAGNER. A representative part number is ACDELCO L906.
Listed part numbers: SYLVANIA 906LL and ACDELCO L906, plus the other parts above.
Headlamp Bulb
HID (intense white light)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Popular Fits: 3.6L V6 | D3S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam and Low Beam | View on Amazon |
| WAGNER Popular Fits: 3.6L V6 | D3S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | with Xenon Gas | View on Amazon |
| HELLA Fits: 3.6L V6 | D3S4300K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 4300KSocket Type Bulb: PK32D-5 | View on Amazon |
| ÜRO PARTS Fits: 3.6L V6 | D3S | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | High Beam and Low Beam | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6 | 13579204 | 🇺🇸 US 🇨🇦 CA | LuxuryTrade HIR2 BI-halogen Headlamps | View on Amazon |
| GM GENUINE Fits: 3.6L V6 | 13587719 | 🇺🇸 US 🇨🇦 CA | LuxuryNorth America (MAH), Canada (MBC) | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| AUTOTECNICA Popular Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | D3S | 🇺🇸 US 🇨🇦 CA | High Beam and Low Beam | View on Amazon |
| WAGNER Popular Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | D3S | 🇺🇸 US 🇨🇦 CA | with Xenon Gas | View on Amazon |
| GM GENUINE Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 13587843 | 🇺🇸 US 🇨🇦 CA | Low BeamTRADE # D3S | View on Amazon |
| HELLA Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | D3S4300K | 🇺🇸 US 🇨🇦 CA | 4300KSocket Type Bulb: PK32D-5 | View on Amazon |
| PEAK Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | D3S | 🇺🇸 US 🇨🇦 CA | Dual BeamProfessional Box | View on Amazon |
| SYLVANIA Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | D3S | 🇺🇸 US 🇨🇦 CA | Dual BeamHIGH BEAM & LOW BEAM | View on Amazon |
| SYLVANIA Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | D3SSZ | 🇺🇸 US 🇨🇦 CA | Silver Star zXe | View on Amazon |
| ÜRO PARTS Fits: 3.6L V6 Turbocharged, 6.2L V8 Supercharged | D3S | 🇺🇸 US 🇨🇦 CA | High Beam and Low Beam | 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 for the 2017 Cadillac CTS come from 7 brands — GM GENUINE, AUTOTECNICA, WAGNER and 4 other brands. The "Popular" part is AUTOTECNICA D3S.
In the HID (intense white light) grade, AUTOTECNICA, WAGNER, HELLA and 1 other brand supply 4 parts: grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. A representative part number is AUTOTECNICA D3S.
Standard Replacement: 2 parts, from GM GENUINE. A representative part number is GM GENUINE 13579204.
8 further parts sit outside the graded sections, with the same engine-level match.
License Plate Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 17177LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeW2.1x9.5d Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 921LED5K | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED Miniature Bulb with Color Temperature of 5000KSocket Type Bulb: SV8.5-8 | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 17177 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | W2.1x9.5d Base5.000 Watt | 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.
8 License Plate Lamp Bulb parts are listed for the 2017 Cadillac CTS, from SYLVANIA, WAGNER and HELLA. HELLA 921LED5K carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. 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): 2 parts, from HELLA and SYLVANIA. A representative part number is HELLA 921LED5K.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 2825 is listed in this group.
Part numbers include HELLA 921LED5K, SYLVANIA 2825LL and WAGNER 17177LL, among others listed above.
Map / Reading Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| PHILIPS Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | PC168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | 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.
2 Map / Reading Light Bulb parts are listed for the 2017 Cadillac CTS, from HELLA and PHILIPS.
Part numbers include HELLA 168 and PHILIPS PC168.
Side Marker Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 13503401 | 🇺🇸 US 🇨🇦 CA | FrontLuxury or Premium Luxury | View on Amazon |
| GM GENUINE Fits: 3.6L V6, 3.6L V6 Turbocharged | 13503359 | 🇺🇸 US 🇨🇦 CA | FrontLuxury or Premium Luxury | 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.
GM GENUINE supplies both parts for the 2017 Cadillac CTS.
Listed part numbers: GM GENUINE 13503401 and GM GENUINE 13503359.
Step / Courtesy Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | L906 | 🇺🇸 US 🇨🇦 CA | GoldTerminal Type: Spade | View on Amazon |
| HELLA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825BL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2886XSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDStraight Base Connector In Line with Bulb | 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.
4 Step / Courtesy Light Bulb parts are listed for the 2017 Cadillac CTS, from HELLA, ACDELCO and SYLVANIA.
Listed part numbers: ACDELCO L906, HELLA 2825 and HELLA 2825BL, plus the other parts above.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 601997 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wattage: 84 WLight Color: Red | View on Amazon |
| HELLA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | 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.
2 Tail Lamp Bulb parts for the 2017 Cadillac CTS come from 2 brands — DORMAN and HELLA.
This group includes DORMAN 601997 and HELLA 2825.
Trunk / Cargo Area Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2112LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: DoubleLong Life | View on Amazon |
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2112LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWire Lead Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2112WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon | |
| WAGNER Popular Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wire Lead Base12.420 Watt | View on Amazon |
| SYLVANIA Fits: 3.6L V6, 3.6L V6 Turbocharged, 6.2L V8 Supercharged | 2112 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: Double-End CapWattage: 12.40 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.
6 Trunk / Cargo Area Light Bulb parts for the 2017 Cadillac CTS come from 3 brands — WAGNER, SYLVANIA and PHILIPS. The "Popular" part is PHILIPS 2112.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 2112LL.
The LED (instant-on, long life, energy-saving) section: 1 option from WAGNER. WAGNER 2112WLED is listed in this group.
Standard Replacement: 3 parts, from PHILIPS, WAGNER and SYLVANIA. A representative part number is PHILIPS 2112.
Listed part numbers: PHILIPS 2112, SYLVANIA 2112LL and WAGNER 2112WLED, plus the other parts above.
Buying Electrical Bulb & Socket Parts for a 2017 Cadillac CTS
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 Dome Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2017 Cadillac CTS?
Our catalog currently lists 65 electrical bulb & socket parts for the 2017 Cadillac CTS across 11 subcategories and 10 brands, covering all 4 engine options (2.0L L4 Turbocharged, 3.6L V6, 3.6L V6 Turbocharged and 6.2L V8 Supercharged). Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2017 Cadillac CTS 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 2017 Cadillac CTS?
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 2017 Cadillac CTS 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 2017 Cadillac CTS?
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 2017 Cadillac CTS
Electrical Bulb & Socket Parts for Other Cadillac CTS 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.