This page lists 18 electrical bulb & socket parts for the 2020 Mazda 3, across 4 part types, covering both the 2.0L L4 and the 2.5L L4. Every part shows its brand, manufacturer part number and fitment notes.
On the 2020 Mazda 3, 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 Trunk / Cargo Area Light Bulb (7 parts), Parking Lamp Bulb (5 parts) and Side Marker Light Bulb (5 parts). The other 1 part type covers the remaining 1 part.
The 2020 Mazda 3 was sold with both the 2.0L L4 and the 2.5L L4. All 18 parts on this page fit every engine.
4 brands supply electrical bulb & socket parts for the 2020 Mazda 3, led by SYLVANIA (9 parts), HELLA (6 parts) and PHILIPS (2 parts), plus 1 more brand. Quality grades include Extended Life, Standard Replacement and LED.
A "Popular" badge means the source catalog flagged the part as frequently chosen for the 2020 Mazda 3. 4 parts have it, including PHILIPS 12396NALL (Parking Lamp Bulb) and PHILIPS 12396NALL (Side Marker Light Bulb). Each part number opens a page with every vehicle that part fits.
Parking Lamp Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: all 2020 3 engines | 12396NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Longer LifeNatural Amber | View on Amazon |
| SYLVANIA Fits: all 2020 3 engines | 2827LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeAmber | View on Amazon |
| WAGNER Fits: all 2020 3 engines | 2827NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeNatural Amber | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2020 3 engines | 2827NA | 🇨🇦 CA | IncandescentNatural Amber | View on Amazon |
| SYLVANIA Fits: all 2020 3 engines | 2827 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | View on Amazon |
This table covers the bulbs in the parking 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 Parking Lamp Bulb parts are listed for the 2020 Mazda 3, from SYLVANIA, PHILIPS, WAGNER and 1 other brand. PHILIPS 12396NALL carries the "Popular" badge. All of them fit every engine offered in the 2020 3.
The Extended Life section lists 3 options from PHILIPS, SYLVANIA and WAGNER — grouped under the catalog's "Extended Life" designation — the notes column spells out what sets them apart. PHILIPS 12396NALL is listed in this group.
The Standard Replacement section lists 2 options from HELLA and SYLVANIA — built to original-equipment specification. HELLA 2827NA is listed in this group.
This group includes PHILIPS 12396NALL, SYLVANIA 2827LL and WAGNER 2827NALL and the remaining parts above.
Side Marker Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| PHILIPS Popular Fits: all 2020 3 engines | 12396NALL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Longer LifeNatural Amber | View on Amazon |
| SYLVANIA Fits: all 2020 3 engines | 2827LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeAmber | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2020 3 engines | 2827SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LED | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2020 3 engines | 2827NA | 🇨🇦 CA | IncandescentNatural Amber | View on Amazon |
| SYLVANIA Fits: all 2020 3 engines | 2827 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Front | View on Amazon |
This table covers the bulbs in the side-marker 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 Side Marker Light Bulb parts for the 2020 Mazda 3 come from 3 brands — SYLVANIA, PHILIPS and HELLA. The "Popular" part is PHILIPS 12396NALL. Every part fits both the 2.0L L4 and the 2.5L L4.
Extended Life: 2 parts, from PHILIPS and SYLVANIA. A representative part number is PHILIPS 12396NALL.
The LED (instant-on, long life, energy-saving) section lists 1 option 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 2827SL is listed in this group.
Standard Replacement: 2 parts, from HELLA and SYLVANIA. A representative part number is HELLA 2827NA.
Listed part numbers: PHILIPS 12396NALL, SYLVANIA 2827LL and SYLVANIA 2827SL, plus the other parts above.
Tail Lamp Bulb
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2020 3 engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
This table covers the bulbs in the tail 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 2020 Mazda 3 — HELLA 2825.
Trunk / Cargo Area Light Bulb
Extended Life
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Fits: all 2020 3 engines | 168LL | 🇨🇦 CA | IncandescentLong Life | View on Amazon |
| SYLVANIA Fits: all 2020 3 engines | 168LL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Long LifeBase Type: W2.1x9.2d | View on Amazon |
Extra Bright (improved visibility, but shorter life)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2020 3 engines | 168ST | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Cool WhiteSilver Star | View on Amazon |
LED (instant-on, long life, energy-saving)
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| SYLVANIA Fits: all 2020 3 engines | 168SL | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | LEDCool White | View on Amazon |
Standard Replacement
| Brand | Part Number | Markets | Notes | Buy |
|---|---|---|---|---|
| HELLA Popular Fits: all 2020 3 engines | 2825 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| HELLA Popular Fits: all 2020 3 engines | 168 | 🇨🇦 CA | IncandescentSocket Type Bulb: W2.1x9.5d | View on Amazon |
| SYLVANIA Fits: all 2020 3 engines | 168 | 🇺🇸 US 🇨🇦 CA 🇲🇽 MX | Base Type: W2.1x9.2dWattage: 4.90 W | View on Amazon |
This table covers the bulbs in the trunk or cargo-area 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.
7 Trunk / Cargo Area Light Bulb parts are listed for the 2020 Mazda 3, from SYLVANIA and HELLA. HELLA 2825 carries the "Popular" badge. All of them fit every engine offered in the 2020 3.
The Extended Life section: 2 options from HELLA and SYLVANIA. HELLA 168LL is listed in this group.
The Extra Bright (improved visibility, but shorter life) section lists 1 option from SYLVANIA — grouped under the catalog's "Extra Bright (improved visibility, but shorter life)" designation — the notes column spells out what sets them apart. SYLVANIA 168ST is listed in this group.
LED (instant-on, long life, energy-saving): 1 part, from SYLVANIA. A representative part number is SYLVANIA 168SL.
The Standard Replacement section: 3 options from HELLA and SYLVANIA. HELLA 2825 is listed in this group.
This group includes HELLA 2825, HELLA 168LL and SYLVANIA 168ST and the remaining parts above.
Buying Electrical Bulb & Socket Parts for a 2020 Mazda 3
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 and the 2.5L L4.
- 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: Trunk / Cargo Area Light Bulb and Parking Lamp Bulb .
Frequently Asked Questions
How many electrical bulb & socket parts fit the 2020 Mazda 3?
Our catalog currently lists 18 electrical bulb & socket parts for the 2020 Mazda 3 across 4 subcategories and 4 brands, covering both the 2.0L L4 and the 2.5L L4. Each part is matched to the engine(s) it fits.
Do electrical bulb & socket parts differ between 2020 Mazda 3 engines?
No. On this page every electrical bulb & socket part fits both the 2.0L L4 and the 2.5L L4. 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 2020 Mazda 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 2020 Mazda 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 2020 Mazda 3?
Every part on this page already fits both the 2.0L L4 and the 2.5L L4. 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 3
Electrical Bulb & Socket Parts for Other Mazda 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.