This page lists 3 electrical bulb & socket parts for the 2021 BMW X4, across 2 part types, covering both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Every part shows its brand, manufacturer part number and fitment notes.
The bulb and socket system on the 2021 BMW X4 covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. All 3 listed parts are Fog / Driving Lamp Bulb (2 parts) and Turn Signal Lamp Bulb (1 part).
The 2021 BMW X4 was sold with both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. All 3 parts on this page fit every engine.
Every electrical bulb & socket part listed for the 2021 BMW X4 comes from PHILIPS.
Each part number listed for the 2021 BMW X4 opens a page with every vehicle that part fits.
Fog / Driving Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 X4 engines | H7USLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon Sport LED | View on Amazon |
| PHILIPS Fits: all 2021 X4 engines | H7UEFLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Ultinon Essential LED | 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.
2 Fog / Driving Lamp Bulb parts for the 2021 BMW X4 come from PHILIPS. Every part fits both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged.
Listed part numbers: PHILIPS H7USLED and PHILIPS H7UEFLED.
Turn Signal Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: all 2021 X4 engines | 12190NA | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Natural Amber | 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.
One part is listed for the 2021 BMW X4 — PHILIPS 12190NA.
Buying Electrical Bulb & Socket Parts for a 2021 BMW X4
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 3.0L L6 Turbocharged.
- 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: Fog / Driving Lamp Bulb and Turn Signal Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2021 BMW X4?
Our catalog currently lists 3 electrical bulb & socket parts for the 2021 BMW X4 across 2 subcategories and 1 brand, covering both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2021 BMW X4 engines?
No. On this page every electrical bulb & socket part fits both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. 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 BMW X4?
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 BMW X4 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 BMW X4?
Every part on this page already fits both the 2.0L L4 Turbocharged and the 3.0L L6 Turbocharged. 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 BMW X4
Electrical Bulb & Socket Parts for Other BMW X4 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.