The 2020 Mazda CX-5 has 26 electrical bulb & socket parts with verified fitment on this page — 5 part types and 5 brands, covering both the 2.5L L4 and the 2.5L L4 Turbocharged. Each part includes a manufacturer part number and application notes.
On the 2020 Mazda CX-5, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination. Most of the listed parts are Brake Light Bulb (10 parts), Map / Reading Light Bulb (7 parts) and Dome Light Bulb (5 parts). The other 2 part types cover the remaining 4 parts.
The 2020 Mazda CX-5 was sold with both the 2.5L L4 and the 2.5L L4 Turbocharged. Every part on this page is engine-specific. Each part shows which engine(s) it fits.
5 brands supply electrical bulb & socket parts for the 2020 Mazda CX-5, led by HELLA (11 parts), SYLVANIA (9 parts) and WAGNER (3 parts), plus 2 more brands. Quality grades include LED, Standard Replacement and Extended Life.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Mazda CX-5. 5 parts have it, including SYLVANIA 7443LL (Brake Light Bulb) and HELLA DE3175 (Dome Light Bulb). Each part number opens a page with every vehicle that part fits.
Brake Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Popular Fits: 2.5L L4 | 7443LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W3X16QLong Life | View on Amazon |
| WAGNER Fits: 2.5L L4 | 7443LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeDouble Contact Wedge Base | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.5L L4 | 7443ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Fits: 2.5L L4 | 7443LED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | VisionLED | View on Amazon |
| SYLVANIA Fits: 2.5L L4 | 7443RSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
| SYLVANIA Fits: 2.5L L4 | 7443RLED | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | ZEVO | View on Amazon |
| WAGNER Fits: 2.5L L4 | 7443LEDW | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| WAGNER Popular Fits: 2.5L L4 | 7443 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Double Contact Wedge Base21.000 Watt | View on Amazon |
| HELLA Fits: 2.5L L4 | 7443 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Incandescent21/5W | View on Amazon |
| SYLVANIA Fits: 2.5L L4 | 7443 | 🇺🇸 US 🇨🇦 CA 🇲🇽 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.
10 Brake Light Bulb parts for the 2020 Mazda CX-5 come from 4 brands — SYLVANIA, WAGNER, PHILIPS and 1 other brand. The "Popular" part is SYLVANIA 7443LL.
In the Extended Life grade, SYLVANIA and WAGNER supply 2 parts: grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. A representative part number is SYLVANIA 7443LL.
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 7443ST.
The LED (instant-on, long life, energy-saving) section lists 4 options from SYLVANIA, PHILIPS and WAGNER — grouped under the catalog's "LED (instant-on, long life, energy-saving)" designation — the notes column spells out what sets them apart. PHILIPS 7443LED is listed in this group.
In the Standard Replacement grade, WAGNER, HELLA and SYLVANIA supply 3 parts: built to original-equipment specification. A representative part number is WAGNER 7443.
Dome Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.5L L4 | DE3175LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentLong Life | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 2.5L L4 | DE3175 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: SV8.5-8/S8.5d | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.5L L4 | 226971121 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDLength [In]: 1.69 | View on Amazon |
| HELLA Fits: 2.5L L4 | 226971131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDLength [In]: 1.50 | View on Amazon |
| HELLA Fits: 2.5L L4 | 226971111 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDLength [In]: 1.18 | View on Amazon |
This table covers the bulbs in the dome 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.
5 Dome Light Bulb parts for the 2020 Mazda CX-5 come from HELLA. The "Popular" part is HELLA DE3175.
Extended Life: 1 part, from HELLA. A representative part number is HELLA DE3175LL.
Standard Replacement: 1 part, from HELLA. A representative part number is HELLA DE3175.
3 further parts sit outside the graded sections, with the same engine-level match.
Part numbers include HELLA DE3175, HELLA DE3175LL and HELLA 226971121, among others listed above.
License Plate Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.5L L4 | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Fits: 2.5L L4 | 2825BL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| PEAK Fits: 2.5L L4 | 2825 | 🇺🇸 US 🇨🇦 CA | License Plate LightBulb | View on Amazon |
This table covers the bulbs that light the license plate. 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 License Plate Lamp Bulb parts for the 2020 Mazda CX-5 come from 2 brands — HELLA and PEAK.
Listed part numbers: HELLA 2825 and HELLA 2825BL, plus the other parts above.
Map / Reading Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.5L L4 | DE3175LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: SV | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: 2.5L L4 | DE3175BSL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDBlue | View on Amazon |
| SYLVANIA Fits: 2.5L L4 | DE3175SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: 2.5L L4 | DE3175 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: SV8.5-8/S8.5d | View on Amazon |
| SYLVANIA Popular Fits: 2.5L L4 | DE3175 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Wattage: 10.00 W | View on Amazon |
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: 2.5L L4 | 226971121 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDLength [In]: 1.69 | View on Amazon |
| HELLA Fits: 2.5L L4 | 226971131 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDLength [In]: 1.50 | View on Amazon |
This table covers the bulbs in the map / reading 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.
7 Map / Reading Light Bulb parts for the 2020 Mazda CX-5 come from 2 brands — SYLVANIA and HELLA. The "Popular" part is HELLA DE3175.
Extended Life: 1 part, from SYLVANIA. A representative part number is SYLVANIA DE3175LL.
The LED (instant-on, long life, energy-saving) section: 2 options from SYLVANIA. SYLVANIA DE3175BSL is listed in this group.
Standard Replacement: 2 parts, from HELLA and SYLVANIA. A representative part number is HELLA DE3175.
2 further parts sit outside the graded sections, with the same engine-level match.
Listed part numbers: HELLA DE3175, SYLVANIA DE3175LL and SYLVANIA DE3175BSL, plus the other parts above.
Parking Brake Warning Light Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PEAK Fits: 2.5L L4 | 7443 | 🇺🇸 US 🇨🇦 CA | Stop LightBulb | View on Amazon |
This table covers the replacement bulbs for the Parking Brake Warning 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: PEAK 7443.
Buying Electrical Bulb & Socket Parts for a 2020 Mazda CX-5
On this vehicle, the bulb and socket system covers every bulb and socket on the vehicle, from headlamps to instrument-cluster illumination.
- Match the engine first. Every electrical bulb & socket part here is engine-specific; each row shows which engine(s) it fits.
- 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 Map / Reading Light Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2020 Mazda CX-5?
Our catalog currently lists 26 electrical bulb & socket parts for the 2020 Mazda CX-5 across 5 subcategories and 5 brands, covering both the 2.5L L4 and the 2.5L L4 Turbocharged. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2020 Mazda CX-5 engines?
Yes. Every electrical bulb & socket part on this page is engine-specific. Each row shows which engine(s) it fits — use the filter at the top to hide the rest. If you're unsure which engine you have, check the emissions label under the hood or the 8th character of your VIN.
What are the signs of electrical bulb & socket problems on a 2020 Mazda CX-5?
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 2020 Mazda CX-5 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 2020 Mazda CX-5?
First match the engine — each row shows which engine(s) the part fits. 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 2020 Mazda CX-5
Electrical Bulb & Socket Parts for Other Mazda CX-5 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.