BMW X3 2021 Bulb Size
Bulb size chart
This 2021 BMW X3 bulb size guide helps you verify the correct bulb by lighting position, so you can match the right part before you buy. Because BMW used different lighting setups across trims and markets, the bulb size for one lamp may not be the same as another on the same vehicle.
Use this page as a quick reference for common exterior and interior bulbs on the 2021 X3, including headlights, fog lights, brake lights, turn signals, reverse lights, parking lights, and vanity mirror lights. Checking the bulb location first is the easiest way to avoid ordering the wrong replacement.
Fitment can vary by trim, lighting package, market, and body style, so always compare the bulb position on your vehicle with the chart before ordering. Some 2021 BMW X3 models use halogen-style bulbs in certain locations, while others may use LED-based assemblies or LED replacement bulbs, especially in fog lights and cornering lights. If your X3 has been modified with aftermarket lighting or a conversion kit, the listed bulb size may not match what is currently installed. For the best results, inspect the existing bulb or housing label before purchase and confirm whether your vehicle has adaptive lighting or a non-adaptive setup.
FAQ
What bulb size does the 2021 BMW X3 use for the low beam headlight?
The low beam headlight bulb listed for the 2021 BMW X3 is H7.
What bulb size does the 2021 BMW X3 use for the high beam headlight?
The high beam headlight bulb listed for the 2021 BMW X3 is H7.
Which fog light bulb fits a 2021 BMW X3 without adaptive lighting?
For a 2021 BMW X3 without adaptive lighting, the front fog light bulb is listed as H11 LED.
Which fog light bulb fits a 2021 BMW X3 with the other front fog light setup?
The front fog light bulb listed separately is H8 LED, which may apply to a different trim or lighting package.
What is the brake light bulb size for the 2021 BMW X3?
The brake light bulb depends on the lighting setup. Without adaptive lighting, it is listed as 7506R. With adaptive lighting, it is listed as 64136.
What bulb does the 2021 BMW X3 use for the front turn signal?
The front turn signal bulb listed for the 2021 BMW X3 is 5200.
What bulb does the 2021 BMW X3 use for the rear turn signal?
The rear turn signal bulb listed for the 2021 BMW X3 is 7506A.
What bulb size is used for the reverse light on a 2021 BMW X3?
The reverse light bulb listed for the 2021 BMW X3 is 921.
What bulb size is used for the parking light on a 2021 BMW X3?
The parking light bulb listed for the 2021 BMW X3 is 194.
What bulb size is used for the daytime running light on a 2021 BMW X3?
The daytime running light bulb listed for the 2021 BMW X3 is 7440.
What bulb size is used for the vanity mirror light on a 2021 BMW X3?
The vanity mirror light bulb listed for the 2021 BMW X3 is 578.
Does the 2021 BMW X3 use the same bulb for the cornering light?
The cornering light bulb listed for the 2021 BMW X3 is H7 LED.
Why should I check the bulb position before buying a replacement for my 2021 BMW X3?
BMW may use different bulb sizes depending on the exact lamp position, trim, and lighting package. Checking the position first helps you match the correct bulb and avoid returns.
Can I use this page if my 2021 BMW X3 has aftermarket lighting?
Yes, but use caution. Aftermarket bulbs or conversion kits can change what is installed, so it is best to verify the actual bulb in the vehicle before ordering a replacement.