Mazda CX-30 2020 Bulb Size

Bulb size chart

D1S Bulbs

Used for: Headlight Bulb High Beam and Low Beam

View all 11 replacement options for size D1S →

H7 Bulbs

Used for: Daytime Running Light Bulb

View all 22 replacement options for size H7 →

The 2020 Mazda CX-30 uses different bulb types depending on the lighting position, trim level, and market, so this page is designed to help you verify the correct bulb size before you buy replacements. Use the listings here to match the bulb by location, whether you are checking the headlights, fog lights, brake lights, turn signals, license plate lights, or interior lamps.

For the 2020 Mazda CX-30, many exterior and interior lights are listed as LED, while the daytime running light bulb is shown as H7 on some applications. Because lighting equipment can vary by body style and package, it is important to confirm the exact bulb by position rather than assuming every CX-30 uses the same setup.

Fitment can vary by trim, lighting package, and market, especially on vehicles that may use LED assemblies on one version and halogen-style service parts on another. If your CX-30 has been modified, or if you are considering an aftermarket conversion, check whether the housing is designed for LED, halogen, or a specific bulb base before ordering. The safest approach is to inspect the installed bulb or the original lamp assembly first, then compare it with the bulb chart on this page so you avoid buying the wrong part.

FAQ

Does the 2020 Mazda CX-30 use the same bulb sizes on every trim?

Not always. Trim level, lighting package, and market can change the bulb type or the entire lamp design, so the correct fitment should be checked by lighting position.

What is this page used for on the 2020 Mazda CX-30?

It helps you verify bulb sizes by location, such as headlight, fog light, brake light, turn signal, license plate light, reverse light, and interior light positions.

What bulb type is listed for the headlights on the 2020 Mazda CX-30?

The page lists the headlight high beam and low beam as LED, D1S. Always confirm the exact setup on your vehicle before buying replacement parts.

What is the daytime running light bulb for the 2020 Mazda CX-30?

The daytime running light bulb is listed as H7 on the available raw fitment list for this page.

Are the front fog lights on the 2020 Mazda CX-30 the same on every version?

No. The front fog light bulb is listed as LED, but trim and market differences can affect the exact lamp design, so verify the installed setup first.

Which rear light positions are covered on this page?

The page includes the tail light bulb, rear turn signal light bulb, rear side marker light bulb, rear fog light bulb, center high mount stop light bulb, and back up reverse light bulb.

Does the 2020 Mazda CX-30 use LED bulbs for the brake lights?

Yes, the brake light bulb is listed as LED on this page.

What should I check before replacing a bulb on my CX-30?

Check the bulb position, the existing bulb type, and whether the lamp is a serviceable bulb or a sealed LED assembly. This is especially important on the 2020 CX-30 because equipment can vary.

Can I replace an LED bulb with a halogen bulb on the 2020 Mazda CX-30?

Usually no, not unless the housing and electrical setup are designed for that change. Mixing LED and halogen without confirming compatibility can cause fitment or warning-light issues.

Are the license plate lights and vanity mirror lights listed on this page?

Yes. The license plate light bulb and vanity mirror light bulb are both listed as LED on the available fitment data.

What about the trunk or cargo area light on the 2020 Mazda CX-30?

The trunk or cargo area light is listed as LED, which helps narrow the replacement search for that specific interior position.

Why is it important to match the bulb by lighting position instead of just by model year?

Because the 2020 Mazda CX-30 can use different bulbs in different locations, and some lighting equipment changes with trim or market. Matching by position is the best way to avoid ordering the wrong bulb.

Mazda CX-30 Bulb Size by Year