This page lists 123 electrical bulb & socket parts for the 2007 Cadillac XLR, across 18 part types, covering both the 4.4L V8 Supercharged and the 4.6L V8. Every part shows its brand, manufacturer part number and fitment notes.
On the 2007 Cadillac XLR, 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 Step / Courtesy Light Bulb (21 parts), Glove Box Light Bulb (16 parts) and Back Up / Reverse Lamp Bulb (14 parts). The other 15 part types cover the remaining 72 parts.
The 2007 Cadillac XLR was sold with both the 4.4L V8 Supercharged and the 4.6L V8. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
11 brands supply electrical bulb & socket parts for the 2007 Cadillac XLR, led by SYLVANIA (43 parts), WAGNER (25 parts) and HELLA (18 parts), plus 8 more brands. Quality grades include Standard Replacement, LED and Extended Life.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2007 Cadillac XLR. 27 parts have it, including WAGNER 3156LL (Back Up / Reverse Lamp Bulb) and PHILIPS 3757NALL (Daytime Running 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 |
|---|---|---|---|---|
| WAGNER Popular Fits: 4.4L V8 Supercharged | 3156LL | 🇺🇸 US 🇨🇦 CA | Long LifeSingle Contact Wedge Base | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 3156LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.5x16d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 3156ST | 🇺🇸 US 🇨🇦 CA | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.4L V8 Supercharged | 3156WSMD | 🇺🇸 US 🇨🇦 CA | Bulb Type 3156 | View on Amazon |
| DORMAN Fits: 4.4L V8 Supercharged | 3156WHP | 🇺🇸 US 🇨🇦 CA | Bulb Type 3156 | View on Amazon |
| PILOT AUTOMOTIVE Fits: 4.4L V8 Supercharged | IL3156R15 | 🇺🇸 US 🇨🇦 CA | Backup LightEXTERIOR BULBS,STANDARD - 3156 LED SURFACE MOUNT DESIGN 15 RED 2 PC - COMPARE withoutRIGINAL | View on Amazon |
| PILOT AUTOMOTIVE Fits: 4.4L V8 Supercharged | IL3156A15 | 🇺🇸 US 🇨🇦 CA | Backup LightEXTERIOR BULBS,STANDARD - 3156 LED SURFACE MOUNT DESIGN 15 AMBR 2 PC - COMPARE withoutRIGINAL | View on Amazon |
| PILOT AUTOMOTIVE Fits: 4.4L V8 Supercharged | IL3156B15 | 🇺🇸 US 🇨🇦 CA | Backup LightEXTERIOR BULBS,STANDARD - 3156 LED SURFACE MOUNT DESIGN 15 BLUE 2 PC - COMPARE withoutRIGINAL | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 3156WLED | 🇺🇸 US 🇨🇦 CA | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 4.4L V8 Supercharged | 3156 | 🇺🇸 US 🇨🇦 CA | Backup LightStandard | View on Amazon |
| WAGNER Popular Fits: 4.4L V8 Supercharged | 3156 | 🇺🇸 US 🇨🇦 CA | Single Contact Wedge Base26.880 Watt | View on Amazon |
| ACDELCO Fits: 4.4L V8 Supercharged | 3157KX | 🇺🇸 US 🇨🇦 CA | Gold | View on Amazon |
| HELLA Fits: 4.4L V8 Supercharged | 3156 | 🇺🇸 US 🇨🇦 CA | IncandescentSocket Type Bulb: W2.5x16d | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 3156 | 🇺🇸 US 🇨🇦 CA | Base Type: W2.5x16dWattage: 26.90 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.
14 Back Up / Reverse Lamp Bulb parts for the 2007 Cadillac XLR come from 7 brands — WAGNER, SYLVANIA, PILOT AUTOMOTIVE and 4 other brands. The "Popular" part is WAGNER 3156LL.
In the Extended Life grade, WAGNER and SYLVANIA 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 WAGNER 3156LL.
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 3156ST.
The LED (instant-on, long life, energy-saving) section lists 6 options from PILOT AUTOMOTIVE, DORMAN and WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. DORMAN 3156WSMD is listed in this group.
In the Standard Replacement grade, PHILIPS, WAGNER, ACDELCO and 2 other brands supply 5 parts: built to original-equipment specification. A representative part number is PHILIPS 3156.
Daytime Running Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 4.4L V8 Supercharged | 3757NALL | 🇺🇸 US 🇨🇦 CA | Longer LifeNatural Amber | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 3757ALL | 🇺🇸 US 🇨🇦 CA | Long LifeAmber | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 3757NALL | 🇺🇸 US 🇨🇦 CA | Long LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 3757A | 🇺🇸 US 🇨🇦 CA | IncandescentAverage Rated Life: 600.0 HR | View on Amazon |
| GM GENUINE Fits: 4.4L V8 Supercharged | 23757NAK | 🇺🇸 US 🇨🇦 CA | Natural Amber | View on Amazon |
| PILOT AUTOMOTIVE Fits: 4.4L V8 Supercharged | PL3757APK | 🇺🇸 US 🇨🇦 CA | Exterior Bulbs, Standard10 Pack | View on Amazon |
This table covers the bulbs used as daytime running 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 Daytime Running Light Bulb parts are listed for the 2007 Cadillac XLR, from PHILIPS, SYLVANIA, WAGNER and 3 other brands. PHILIPS 3757NALL carries the "Popular" badge.
The Extended Life section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 3757NALL is listed in this group.
The Standard Replacement section: 3 options from HELLA, GM GENUINE and PILOT AUTOMOTIVE. HELLA 3757A is listed in this group.
This group includes PHILIPS 3757NALL and SYLVANIA 3757ALL and the remaining parts above.
Daytime Running Light Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 4.4L V8 Supercharged | LS240 | 🇺🇸 US 🇨🇦 CA | SOCKET,DAYTIME RUNNING LP withRH RULE OF ROAD HDLP (T84) or LH RULE OF ROAD HDLP (T85) | View on Amazon |
| GM GENUINE Fits: 4.4L V8 Supercharged | LS239 | 🇺🇸 US 🇨🇦 CA | DRL SOCKET ONLY | View on Amazon |
This table covers the sockets that hold a Daytime Running Light bulb. 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.
2 Daytime Running Light Socket parts are listed for the 2007 Cadillac XLR, from ACDELCO and GM GENUINE.
This group includes ACDELCO LS240 and GM GENUINE LS239.
Door Panel Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 561LL | 🇺🇸 US 🇨🇦 CA | Base Type: Rigid LoopLong Life | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 561LL | 🇺🇸 US 🇨🇦 CA | Long LifeRigid Loop Base | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 4.4L V8 Supercharged | 561 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SYLVANIA Fits: 4.4L V8 Supercharged | 561 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAGNER Fits: 4.4L V8 Supercharged | 561 | 🇺🇸 US 🇨🇦 CA | Rigid Loop Base12.420 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 are listed for the 2007 Cadillac XLR, from SYLVANIA, WAGNER and PHILIPS. PHILIPS 561 carries the "Popular" badge.
The Extended Life section: 2 options from SYLVANIA and WAGNER. SYLVANIA 561LL is listed in this group.
The Standard Replacement section: 3 options from PHILIPS, SYLVANIA and WAGNER. PHILIPS 561 is listed in this group.
Part numbers include PHILIPS 561 and SYLVANIA 561LL, among others listed above.
Fog / Driving Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 4.4L V8 Supercharged | 9055 | 🇺🇸 US 🇨🇦 CA | For vehicle with Lamp Fog, ECE Requirements | View on Amazon |
| PHILIPS Fits: 4.4L V8 Supercharged | 9045 | 🇺🇸 US 🇨🇦 CA | Fits Frontor Fog LightStandardor For vehicle without Lamp Fog, ECE Requirements | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 9045 | 🇺🇸 US 🇨🇦 CA | Base Type: PZ20DWattage: 40.00 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.
3 Fog / Driving Lamp Bulb parts are listed for the 2007 Cadillac XLR, from PHILIPS and SYLVANIA.
This group includes PHILIPS 9055 and PHILIPS 9045 and the remaining parts above.
Fog / Driving Lamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WELLS Fits: 4.4L V8 Supercharged | 1P3539 | 🇺🇸 US 🇨🇦 CA | with Bulb # 9005Wiring Harness | View on Amazon |
This table covers the sockets that hold a Fog / Driving Lamp bulb. 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.
One part is listed for the 2007 Cadillac XLR — WELLS 1P3539.
Glove Box Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 4.4L V8 Supercharged | 194LL | 🇺🇸 US 🇨🇦 CA | IncandescentLong Life | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 194LL | 🇺🇸 US 🇨🇦 CA | Long LifeBulb Type: T-3-1/4 Bulb 13/32 (10mm) Diameter | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 194ST | 🇺🇸 US 🇨🇦 CA | Color Temperature: 3200 KVSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 921LED5K | 🇺🇸 US 🇨🇦 CA | LED Miniature Bulb with Color Temperature of 5000KSocket Type Bulb: SV8.5-8 | View on Amazon |
| DORMAN Fits: 4.4L V8 Supercharged | 194WHP | 🇺🇸 US 🇨🇦 CA | Bulb Type 1942 Watt | View on Amazon |
| DORMAN Fits: 4.4L V8 Supercharged | 194WSMD | 🇺🇸 US 🇨🇦 CA | Bulb Type 1941.2 Watt | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194BSL | 🇺🇸 US 🇨🇦 CA | LEDBlue | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194SL | 🇺🇸 US 🇨🇦 CA | LEDCool White | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194BLED | 🇺🇸 US 🇨🇦 CA | BlueZEVO | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194LED | 🇺🇸 US 🇨🇦 CA | ZEVOCool White | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | T10LED | 🇺🇸 US 🇨🇦 CA | Tru View PLUS LED | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 194LEDW | 🇺🇸 US 🇨🇦 CA | LEDGlass:Clear (T3-1/4), Number of Filaments:1, Watts:3.78 (0.16 cp), Base:Wedge (W2.1x9.5d) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 194 | 🇺🇸 US 🇨🇦 CA | Brightness: 2.0 CPIncandescent | View on Amazon |
| SYLVANIA Popular Fits: 4.4L V8 Supercharged | 194 | 🇺🇸 US 🇨🇦 CA | Base Type: W2.1x9.2dWattage: 3.80 W | View on Amazon |
| WAGNER Popular Fits: 4.4L V8 Supercharged | 194 | 🇺🇸 US 🇨🇦 CA | Wedge Base3.780 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.
16 Glove Box Light Bulb parts are listed for the 2007 Cadillac XLR, from SYLVANIA, WAGNER, HELLA and 1 other brand. HELLA 921LED5K carries the "Popular" badge.
The Extended Life section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 194LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section: 1 option from SYLVANIA. SYLVANIA 194ST is listed in this group.
LED (instant-on, long life, energy-saving): 9 parts, from SYLVANIA, DORMAN, WAGNER and 1 other brand. A representative part number is HELLA 921LED5K.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 194 is listed in this group.
Headlamp Bulb
HID (intense white light)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | D1S4300K | 🇺🇸 US 🇨🇦 CA | 4300KSocket Type Bulb: PK32D-2 | View on Amazon |
| SYLVANIA Popular Fits: 4.4L V8 Supercharged | D1S | 🇺🇸 US 🇨🇦 CA | High Beam and Low Beam | View on Amazon |
| HELLA Fits: 4.4L V8 Supercharged | D1S5000K | 🇺🇸 US 🇨🇦 CA | 5000KSocket Type Bulb: PK32D-2 | View on Amazon |
| PHILIPS Fits: 4.4L V8 Supercharged | D1S | 🇺🇸 US 🇨🇦 CA | High Beam and Low Beam | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | D1SSZ | 🇺🇸 US 🇨🇦 CA | Silver Star zXe | View on Amazon |
| ÜRO PARTS Fits: 4.4L V8 Supercharged | D1S | 🇺🇸 US 🇨🇦 CA | 4300K | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | D1S | 🇺🇸 US 🇨🇦 CA | with Xenon Gas | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| ACDELCO Fits: 4.4L V8 Supercharged | 19352020 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentBeam Type: High Beam Low Beam | View on Amazon |
| ACDELCO Fits: 4.4L V8 Supercharged | 19351924 | 🇺🇸 US 🇨🇦 CA | GM Original EquipmentBeam Type: High 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.
9 Headlamp Bulb parts are listed for the 2007 Cadillac XLR, from HELLA, SYLVANIA, ACDELCO and 3 other brands. HELLA D1S4300K carries the "Popular" badge.
The HID (intense white light) section lists 7 options from HELLA, SYLVANIA, PHILIPS and 2 other brands — grouped under the catalog's "HID (intense white light)" designation — the notes column spells out what sets them apart. HELLA D1S4300K is listed in this group.
The Standard Replacement section: 2 options from ACDELCO. ACDELCO 19352020 is listed in this group.
This group includes HELLA D1S4300K, SYLVANIA D1S and HELLA D1S5000K and the remaining parts above.
Headlamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Fits: 4.4L V8 Supercharged | 645595 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| GM GENUINE Fits: 4.4L V8 Supercharged | PT1595 | 🇺🇸 US 🇨🇦 CA | Black | View on Amazon |
| STANDARD MOTOR PRODUCTS Fits: 4.4L V8 Supercharged | S1500 | 🇺🇸 US 🇨🇦 CA | Connector Shape: Rectangle | 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.
3 Headlamp Socket parts are listed for the 2007 Cadillac XLR, from DORMAN, GM GENUINE and STANDARD MOTOR PRODUCTS.
Listed part numbers: DORMAN 645595, GM GENUINE PT1595 and STANDARD MOTOR PRODUCTS S1500.
License Plate Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 17177LL | 🇺🇸 US 🇨🇦 CA | Long LifeW2.1x9.5d Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825ST | 🇺🇸 US 🇨🇦 CA | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 921LED5K | 🇺🇸 US 🇨🇦 CA | LED Miniature Bulb with Color Temperature of 5000KSocket Type Bulb: SV8.5-8 | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825SL | 🇺🇸 US 🇨🇦 CA | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE Fits: 4.4L V8 Supercharged | 13500812 | 🇺🇸 US 🇨🇦 CA | TRADE # W5WLL | View on Amazon |
| HELLA Fits: 4.4L V8 Supercharged | 2825BL | 🇺🇸 US 🇨🇦 CA | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 17177 | 🇺🇸 US 🇨🇦 CA | 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.
10 License Plate Lamp Bulb parts for the 2007 Cadillac XLR come from 4 brands — SYLVANIA, HELLA, WAGNER and 1 other brand. The "Popular" part is HELLA 921LED5K.
Extended Life: 2 parts, from SYLVANIA and WAGNER. 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: 2 options from HELLA and SYLVANIA. HELLA 921LED5K is listed in this group.
Standard Replacement: 5 parts, from HELLA, GM GENUINE, SYLVANIA and 1 other brand. A representative part number is HELLA 2825.
License Plate Lamp Socket
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: 4.4L V8 Supercharged | LS44 | 🇺🇸 US 🇨🇦 CA | RearDK Gray | View on Amazon |
This table covers the sockets that hold a License Plate Lamp bulb. 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.
This group shows a single part: GM GENUINE LS44.
Map / Reading Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 2122LL | 🇺🇸 US 🇨🇦 CA | Base Type: Double-End CapLong Life | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 2122LL | 🇺🇸 US 🇨🇦 CA | Long LifeDouble End Cap Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| DORMAN Popular Fits: 4.4L V8 Supercharged | 212WSMD | 🇺🇸 US 🇨🇦 CA | Wattage: 1.44 WLight Color: | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 4.4L V8 Supercharged | 2122 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SYLVANIA Fits: 4.4L V8 Supercharged | 2122 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAGNER Fits: 4.4L V8 Supercharged | 2122 | 🇺🇸 US 🇨🇦 CA | Double End Cap Base9.990 Watt | 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.
6 Map / Reading Light Bulb parts for the 2007 Cadillac XLR come from 4 brands — SYLVANIA, WAGNER, DORMAN and 1 other brand. The "Popular" part is DORMAN 212WSMD.
Extended Life: 2 parts, from SYLVANIA and WAGNER. A representative part number is SYLVANIA 2122LL.
The LED (instant-on, long life, energy-saving) section: 1 option from DORMAN. DORMAN 212WSMD is listed in this group.
Standard Replacement: 3 parts, from PHILIPS, SYLVANIA and WAGNER. A representative part number is PHILIPS 2122.
Listed part numbers: DORMAN 212WSMD and SYLVANIA 2122LL, plus the other parts above.
Parking Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 4.4L V8 Supercharged | 2825LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 17177LL | 🇺🇸 US 🇨🇦 CA | Long LifeW2.1x9.5d Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825ST | 🇺🇸 US 🇨🇦 CA | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825SL | 🇺🇸 US 🇨🇦 CA | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 17177 | 🇺🇸 US 🇨🇦 CA | W2.1x9.5d Base5.000 Watt | 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.
7 Parking Lamp Bulb parts are listed for the 2007 Cadillac XLR, from SYLVANIA, WAGNER and HELLA. SYLVANIA 2825LL 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): 1 part, from SYLVANIA. A representative part number is SYLVANIA 2825SL.
The Standard Replacement section: 3 options from HELLA, SYLVANIA and WAGNER. HELLA 2825 is listed in this group.
This group includes SYLVANIA 2825LL, WAGNER 17177LL and SYLVANIA 2825ST and the remaining parts above.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 4.4L V8 Supercharged | 2825LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.1x9.5d | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 17177LL | 🇺🇸 US 🇨🇦 CA | Long LifeW2.1x9.5d Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825ST | 🇺🇸 US 🇨🇦 CA | BlueSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825SL | 🇺🇸 US 🇨🇦 CA | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| GM GENUINE Fits: 4.4L V8 Supercharged | 13500812 | 🇺🇸 US 🇨🇦 CA | FrontTRADE # W5WLL | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA | Base Type: W2.1x9.5dWattage: 5.00 W | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 17177 | 🇺🇸 US 🇨🇦 CA | W2.1x9.5d Base5.000 Watt | 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.
8 Side Marker Light Bulb parts for the 2007 Cadillac XLR come from 4 brands — SYLVANIA, WAGNER, HELLA and 1 other brand. The "Popular" part is SYLVANIA 2825LL.
Extended Life: 2 parts, from SYLVANIA and WAGNER. 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, SYLVANIA and 1 other brand. A representative part number is HELLA 2825.
Part numbers include SYLVANIA 2825LL, WAGNER 17177LL and SYLVANIA 2825ST, among others listed above.
Step / Courtesy Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 4.4L V8 Supercharged | 194LL | 🇺🇸 US 🇨🇦 CA | Long LifeBase Type: W2.1x9.2d | View on Amazon |
| HELLA Fits: 4.4L V8 Supercharged | 194LL | 🇺🇸 US 🇨🇦 CA | IncandescentLong Life | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 561LL | 🇺🇸 US 🇨🇦 CA | Base Type: Rigid LoopLong Life | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 2122LL | 🇺🇸 US 🇨🇦 CA | Base Type: Double-End CapLong Life | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 194LL | 🇺🇸 US 🇨🇦 CA | Long LifeBulb Type: T-3-1/4 Bulb 13/32 (10mm) Diameter | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 4.4L V8 Supercharged | 194ST | 🇺🇸 US 🇨🇦 CA | Color Temperature: 3200 KVSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 921LED5K | 🇺🇸 US 🇨🇦 CA | LED Miniature Bulb with Color Temperature of 5000KSocket Type Bulb: SV8.5-8 | View on Amazon |
| DORMAN Fits: 4.4L V8 Supercharged | 194WHP | 🇺🇸 US 🇨🇦 CA | Bulb Type 1942 Watt | View on Amazon |
| DORMAN Fits: 4.4L V8 Supercharged | 194WSMD | 🇺🇸 US 🇨🇦 CA | Bulb Type 1941.2 Watt | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194BSL | 🇺🇸 US 🇨🇦 CA | LEDBlue | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194SL | 🇺🇸 US 🇨🇦 CA | LEDCool White | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194BLED | 🇺🇸 US 🇨🇦 CA | BlueZEVO | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 194LED | 🇺🇸 US 🇨🇦 CA | ZEVOCool White | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | T10LED | 🇺🇸 US 🇨🇦 CA | Tru View PLUS LED | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 194LEDW | 🇺🇸 US 🇨🇦 CA | LEDGlass:Clear (T3-1/4), Number of Filaments:1, Watts:3.78 (0.16 cp), Base:Wedge (W2.1x9.5d) | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 194 | 🇺🇸 US 🇨🇦 CA | Brightness: 2.0 CPIncandescent | View on Amazon |
| SYLVANIA Popular Fits: 4.4L V8 Supercharged | 194 | 🇺🇸 US 🇨🇦 CA | Base Type: W2.1x9.2dWattage: 3.80 W | View on Amazon |
| WAGNER Popular Fits: 4.4L V8 Supercharged | 194 | 🇺🇸 US 🇨🇦 CA | Wedge Base3.780 Watt | View on Amazon |
| PHILIPS Fits: 4.4L V8 Supercharged | 2122 | 🇺🇸 US 🇨🇦 CA | Step or Courtesy LightCourtesy | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 561 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SYLVANIA Fits: 4.4L V8 Supercharged | 2122 | 🇺🇸 US 🇨🇦 CA | 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.
21 Step / Courtesy Light Bulb parts for the 2007 Cadillac XLR come from 5 brands — SYLVANIA, WAGNER, HELLA and 2 other brands. The "Popular" part is SYLVANIA 194LL.
Extended Life: 5 parts, from SYLVANIA, HELLA and WAGNER. A representative part number is SYLVANIA 194LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 194ST.
The LED (instant-on, long life, energy-saving) section: 9 options from SYLVANIA, DORMAN, WAGNER and 1 other brand. HELLA 921LED5K is listed in this group.
Standard Replacement: 6 parts, from SYLVANIA, HELLA, WAGNER and 1 other brand. A representative part number is HELLA 194.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 4.4L V8 Supercharged | 2825 | 🇺🇸 US 🇨🇦 CA | 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.
One part is listed for the 2007 Cadillac XLR — HELLA 2825.
Trunk / Cargo Area Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 4.4L V8 Supercharged | 168 | 🇺🇸 US 🇨🇦 CA | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| PHILIPS Fits: 4.4L V8 Supercharged | PC168 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| SYLVANIA Fits: 4.4L V8 Supercharged | PC168 | 🇺🇸 US 🇨🇦 CA | View on Amazon | |
| WAGNER Fits: 4.4L V8 Supercharged | PC168 | 🇺🇸 US 🇨🇦 CA | Printed Circuit Base4.900 Watt | 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.
4 Trunk / Cargo Area Light Bulb parts are listed for the 2007 Cadillac XLR, from HELLA, PHILIPS, SYLVANIA and 1 other brand.
Part numbers include HELLA 168 and PHILIPS PC168, among others listed above.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: 4.4L V8 Supercharged | 3757NALL | 🇺🇸 US 🇨🇦 CA | Longer LifeNatural Amber | View on Amazon |
| SYLVANIA Fits: 4.4L V8 Supercharged | 3757ALL | 🇺🇸 US 🇨🇦 CA | Long LifeAmber | View on Amazon |
| WAGNER Fits: 4.4L V8 Supercharged | 3757NALL | 🇺🇸 US 🇨🇦 CA | Long LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 4.4L V8 Supercharged | 3757A | 🇺🇸 US 🇨🇦 CA | IncandescentAverage Rated Life: 600.0 HR | View on Amazon |
| GM GENUINE Fits: 4.4L V8 Supercharged | 13500812 | 🇺🇸 US 🇨🇦 CA | FrontTRADE # W5WLL | View on Amazon |
| PILOT AUTOMOTIVE Fits: 4.4L V8 Supercharged | PL3757APK | 🇺🇸 US 🇨🇦 CA | FrontExterior Bulbs,Standard | 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.
6 Turn Signal Lamp Bulb parts for the 2007 Cadillac XLR come from 6 brands — PHILIPS, SYLVANIA, WAGNER and 3 other brands. The "Popular" part is PHILIPS 3757NALL.
Extended Life: 3 parts, from PHILIPS, SYLVANIA and WAGNER. A representative part number is PHILIPS 3757NALL.
Standard Replacement: 3 parts, from HELLA, GM GENUINE and PILOT AUTOMOTIVE. A representative part number is HELLA 3757A.
This group includes PHILIPS 3757NALL and SYLVANIA 3757ALL and the remaining parts above.
Buying Electrical Bulb & Socket Parts for a 2007 Cadillac XLR
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: Step / Courtesy Light Bulb and Glove Box Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2007 Cadillac XLR?
Our catalog currently lists 123 electrical bulb & socket parts for the 2007 Cadillac XLR across 18 subcategories and 11 brands, covering both the 4.4L V8 Supercharged and the 4.6L V8. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2007 Cadillac XLR 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 2007 Cadillac XLR?
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 2007 Cadillac XLR 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 2007 Cadillac XLR?
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 2007 Cadillac XLR
Electrical Bulb & Socket Parts for Other Cadillac XLR Years
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