10 Electrical bulb & socket parts are listed for the 2021 Cadillac XT5, in 5 part types, covering both the 2.0L L4 Turbocharged and the 3.6L V6. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2021 Cadillac XT5, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. 8 parts of the 10 listed are Back Up / Reverse Lamp Bulb (3 parts), Turn Signal Lamp Bulb (3 parts) and Side Marker Light Bulb (2 parts). The other 2 part types cover the remaining 2 parts.
The 2021 Cadillac XT5 was sold with both the 2.0L L4 Turbocharged and the 3.6L V6. All 10 parts on this page fit every engine.
The most listed brands for 2021 Cadillac XT5 electrical bulb & socket parts are WAGNER (6 parts) and GM GENUINE (4 parts). Quality grades include Extended Life, LED and Standard Replacement.
Each part number listed for the 2021 Cadillac XT5 opens a page with every vehicle that part fits.
Back Up / Reverse Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 XT5 engines | 921LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeWedge Base | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 XT5 engines | 921WLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDWhite | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 XT5 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.
WAGNER supplies the 3 Back Up / Reverse Lamp Bulb parts for the 2021 Cadillac XT5. All of them fit every engine offered in the 2021 XT5.
The Extended Life section lists 1 option from WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. WAGNER 921LL is listed in this group.
In the LED (instant-on, long life, energy-saving) grade, WAGNER supplies 1 part: grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. A representative part number is WAGNER 921WLED.
The Standard Replacement section lists 1 option from WAGNER — built to original-equipment specification. WAGNER 921 is listed in this group.
Listed part numbers: WAGNER 921LL, WAGNER 921WLED and WAGNER 921.
Side Marker Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: all 2021 XT5 engines | 13503401 | 🇺🇸 US 🇨🇦 CA | FrontLuxury or Premium Luxury | View on Amazon |
| GM GENUINE Fits: all 2021 XT5 engines | 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 2021 Cadillac XT5. All of them fit every engine offered in the 2021 XT5.
This group includes GM GENUINE 13503401 and GM GENUINE 13503359.
Trunk / Cargo Area Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: all 2021 XT5 engines | 13569063 | 🇺🇸 US 🇨🇦 CA | Luxury or Premium LuxuryQuarter Lower Rear Trim Panel | 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.
This group shows a single part: GM GENUINE 13569063.
Turn Signal Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 XT5 engines | 7440NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 XT5 engines | 7440NALED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural AmberLED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Fits: all 2021 XT5 engines | 7440NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural AmberSingle Contact Wedge Base | 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.
WAGNER supplies the 3 Turn Signal Lamp Bulb parts for the 2021 Cadillac XT5. All of them fit every engine offered in the 2021 XT5.
The Extended Life section: 1 option from WAGNER. WAGNER 7440NALL is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from WAGNER. A representative part number is WAGNER 7440NALED.
The Standard Replacement section: 1 option from WAGNER. WAGNER 7440NA is listed in this group.
Listed part numbers: WAGNER 7440NALL, WAGNER 7440NALED and WAGNER 7440NA.
Vanity Mirror / Sun Visor Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| GM GENUINE Fits: all 2021 XT5 engines | 13502343 | 🇺🇸 US 🇨🇦 CA | Luxury or Premium Luxury | View on Amazon |
This table covers the replacement bulbs for the Vanity Mirror / Sun Visor 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: GM GENUINE 13502343.
Buying Electrical Bulb & Socket Parts for a 2021 Cadillac XT5
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 2.0L L4 Turbocharged and the 3.6L V6.
- 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: Back Up / Reverse Lamp Bulb and Turn Signal Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2021 Cadillac XT5?
Our catalog currently lists 10 electrical bulb & socket parts for the 2021 Cadillac XT5 across 5 subcategories and 2 brands, covering both the 2.0L L4 Turbocharged and the 3.6L V6. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2021 Cadillac XT5 engines?
No. On this page every electrical bulb & socket part fits both the 2.0L L4 Turbocharged and the 3.6L V6. 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 2021 Cadillac XT5?
Common symptoms include a lamp that flickers over bumps, melted or discolored socket plastic, or bulbs that keep failing early on one side. If you notice any of these, identify the affected subcategory above and cross-reference the part numbers listed.
What should I replace at the same time?
Where labor overlaps, replace bulbs in pairs so both sides age together, and put a smear of dielectric grease on the new socket contacts.
What do the market flags (US, CA, MX) on each part mean?
They show the market for which the manufacturer published application data for that part — where the vehicle was first sold, not where the part was made. If your 2021 Cadillac XT5 was originally sold in the US, the safest choice is a part marked for the US market.
How do I make sure a part fits my 2021 Cadillac XT5?
Every part on this page already fits both the 2.0L L4 Turbocharged and the 3.6L V6. Then repeated bulb failure in one position usually means a socket or ground problem, not bad bulbs — replace the socket rather than chase it. The notes column carries position and trim qualifiers where they apply.
Other Parts for the 2021 Cadillac XT5
Electrical Bulb & Socket Parts for Other Cadillac XT5 Years
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