8 Electrical bulb & socket parts are listed for the 2024 Mazda CX-3, in 2 part types, covering the 2.0L L4 engine. Each one has a brand, a manufacturer part number and notes that say where it fits.
On the 2024 Mazda CX-3, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. All 8 listed parts are Brake Light Bulb (5 parts) and Back Up / Reverse Lamp Bulb (3 parts).
The 2024 Mazda CX-3 came with a single engine, the 2.0L L4, and every part is verified against it.
Every electrical bulb & socket part listed for the 2024 Mazda CX-3 comes from SYLVANIA. Quality grades include Extended Life, Extra Bright and LED.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2024 Mazda CX-3. 1 part has it: SYLVANIA 7443LL (Brake 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 |
|---|---|---|---|---|
| SYLVANIA | 921LL | 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 921ST | 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 921 | 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 18.00 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.
3 Back Up / Reverse Lamp Bulb parts for the 2024 Mazda CX-3 come from SYLVANIA.
In the Extended Life grade, SYLVANIA supplies 1 part: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 921LL.
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 921ST.
In the Standard Replacement grade, SYLVANIA supplies 1 part: built to original-equipment specification. A representative part number is SYLVANIA 921.
Listed part numbers: SYLVANIA 921LL, SYLVANIA 921ST and SYLVANIA 921.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular | 7443LL | 🇲🇽 MX | Base Type: W3X16QLong Life | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 7443ST | 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 7443RSL | 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA | 7443RLED | 🇲🇽 MX | ZEVO | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA | 7443 | 🇲🇽 MX | Base Type: W3X16QWattage: 5.30 W | View on Amazon |
This table covers the bulbs in the stop 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.
5 Brake Light Bulb parts for the 2024 Mazda CX-3 come from SYLVANIA. The "Popular" part is SYLVANIA 7443LL.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA 7443LL.
Extra Bright (improved visibility, but shorter life): 1 part, from SYLVANIA. A representative part number is SYLVANIA 7443ST.
The LED (instant-on, long life, energy-saving) section lists 2 options from SYLVANIA — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. SYLVANIA 7443RSL is listed in this group.
Standard Replacement: 1 part, from SYLVANIA. A representative part number is SYLVANIA 7443.
Part numbers include SYLVANIA 7443LL, SYLVANIA 7443ST and SYLVANIA 7443RSL, among others listed above.
Buying Electrical Bulb & Socket Parts for a 2024 Mazda CX-3
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Confirm you have the 2.0L L4 engine — every part on this page is matched to it.
- 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: Brake Light Bulb and Back Up / Reverse Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2024 Mazda CX-3?
Our catalog currently lists 8 electrical bulb & socket parts for the 2024 Mazda CX-3 across 2 subcategories and 1 brand, covering the 2.0L L4 engine. Each part is matched to the engine(s) it fits.
What are the signs of electrical bulb & socket problems on a 2024 Mazda CX-3?
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 2024 Mazda CX-3 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 2024 Mazda CX-3?
Every part on this page is matched to the 2.0L L4 engine. 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 2024 Mazda CX-3
Electrical Bulb & Socket Parts for Other Mazda CX-3 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.