Cadillac XT4 2019 Bulb Size

Bulb size chart

Headlight Bulb High Beam - LED
Headlight Bulb Low Beam - LED
Back Up Reverse Light Bulb - 921
Brake Light Bulb - LED
Center High Mount Stop Light Bulb - LED
Cornering Light Bulb - LED
Daytime Running Light Bulb - LED
License Plate Light Bulb - LED
Parking Light Bulb(with LED turn Signals) - LED
Parking Light Bulb(without LED turn Signals) - 7444NA
Side Marker Light Bulb Front - LED
Side Marker Light Bulb Rear - LED
Tail Light Bulb - LED
Turn Signal Light Bulb Front(with LED turn Signals) - LED
Turn Signal Light Bulb Front(without LED turn Signals) - 7444NA
Turn Signal Light Bulb Rear - LED

921 Bulbs

Used for: Back Up Reverse Light Bulb

View all 14 replacement options for size 921 →

7444NA Bulbs

Used for: Parking Light Bulb(without LED turn Signals), Turn Signal Light Bulb Front(without LED turn Signals)

TUINCYN 7444NA W21W LED White Light Bulb

TUINCYN 7444NA W21W LED White Light Bulb

Introducing the TUINCYN 7444NA W21W LED White Light Bulb, a reliable and easy-to-install lighting solution for your car. With its advanced features and impressive specifications, this bulb is designed to provide bright and efficient illumination, enhancing your driving experience. Installation is a breeze with the TUINCYN 7444NA W21W LED White Light Bulb. It is a plug and play bulb, which means no complicated wiring or modifications are needed. Simply remove your old bulb and insert the TUINCYN LED bulb into the socket for an instant upgrade. It's a hassle-free process that saves you time and effort. The light body structure of this bulb is designed for durability and longevity. With point-to-point welding, the light body is firm and not easily damaged. This ensures that the bulb can withstand various road conditions and vibrations, providing you with a reliable lighting solution that will last. Experience exceptional lighting coverage with the 360-degree beam angle design of the TUINCYN LED bulb. This design ensures that every corner is illuminated, leaving no dark spots or shadows. Whether you're driving in the city or on winding roads, you can rely on the TUINCYN LED bulb to provide clear and consistent lighting. With its faster on/off response time, the TUINCYN 7444NA W21W LED White Light Bulb delivers instant illumination when activated. This quick response ensures that other drivers can easily see your vehicle, enhancing safety on the road.

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View all 11 replacement options for size 7444NA →

The 2019 Cadillac XT4 uses a mix of LED and conventional bulb types depending on the lighting position and the equipment fitted to the vehicle. This page helps you verify bulb sizes by lighting position so you can match the correct replacement before you buy.

Because trim and lighting package can vary by market and body style, the same 2019 Cadillac XT4 may not use the same bulb in every location. Use the chart below to confirm the headlight, tail light, signal, marker, and reverse light bulb type for your specific vehicle.

For the best fitment results, compare the bulb position on your XT4 with the installed part before ordering. Some versions use factory LED lighting in many exterior positions, while others may still use a replaceable bulb for the front turn signal or parking light. If your XT4 has been converted with aftermarket LED bulbs, the socket may still be the same but the light output, polarity, or error behavior can differ. Always check the actual bulb in the vehicle, especially on trims with different lighting packages, before purchasing replacements.

FAQ

What bulb size does the 2019 Cadillac XT4 use for the low beam headlight?

The low beam headlight on the 2019 Cadillac XT4 is listed as LED. Because it is an LED application, you should verify the exact lighting assembly on your vehicle before replacing anything.

What bulb size does the 2019 Cadillac XT4 use for the high beam headlight?

The high beam headlight on the 2019 Cadillac XT4 is listed as LED. The replacement method can depend on the headlamp design, so check the installed unit before ordering parts.

What bulb is used for the back up reverse light on the 2019 Cadillac XT4?

The back up reverse light bulb is listed as 921 for the 2019 Cadillac XT4.

Does the 2019 Cadillac XT4 use LED brake lights?

Yes. The brake light bulb is listed as LED on the 2019 Cadillac XT4.

What about the tail lights and center high mount stop light?

Both the tail light bulb and the center high mount stop light bulb are listed as LED on the 2019 Cadillac XT4.

What bulb does the license plate light use on a 2019 Cadillac XT4?

The license plate light bulb is listed as LED on the 2019 Cadillac XT4.

Are the daytime running lights on the 2019 Cadillac XT4 LED?

Yes. The daytime running light bulb is listed as LED on the 2019 Cadillac XT4.

What is the rear turn signal bulb type on the 2019 Cadillac XT4?

The rear turn signal light bulb is listed as LED on the 2019 Cadillac XT4.

What bulb is used for the front turn signal on XT4 models without LED turn signals?

For 2019 Cadillac XT4 models without LED turn signals, the front turn signal light bulb is listed as 7444NA.

What bulb is used for the front parking light on XT4 models without LED turn signals?

For 2019 Cadillac XT4 models without LED turn signals, the front parking light bulb is listed as 7444NA.

What if my XT4 has LED turn signals in the front?

If your 2019 Cadillac XT4 has LED turn signals in the front, the front turn signal light and the parking light are both listed as LED for that configuration.

Does the 2019 Cadillac XT4 use the same bulb for front and rear side markers?

Both the front side marker light bulb and rear side marker light bulb are listed as LED on the 2019 Cadillac XT4.

What is the cornering light bulb type on the 2019 Cadillac XT4?

The cornering light bulb is listed as LED on the 2019 Cadillac XT4.

How do I make sure I buy the right bulb for my XT4?

Match the bulb to the exact lighting position on your vehicle and confirm whether your XT4 has LED or non-LED front signal equipment. Trim and package differences can change the fitment, so checking the installed bulb or assembly is the safest way to avoid ordering the wrong part.