Mazda Mazda3 2018 Bulb Size

Bulb size chart

Headlight Bulb High Beam - 9005
Headlight Bulb Low Beam - H11
Back Up Light Bulb(Compare to original - Option 1) - 7440
Back Up Light Bulb(Compare to original - Option 2) - 921
Brake Light Bulb - 7443R
Daytime Running Light Bulb - 9005
License Plate Light Bulb - 2825
Parking Light Bulb - 2827
Side Marker Light Bulb Front - 2827
Side Marker Light Bulb Rear - 7443A
Tail Light Bulb - 7443R
Turn Signal Light Bulb Front - 7440A
Turn Signal Light Bulb Rear - 7440A
Dome Light Bulb - DE3175
Map Light Bulb - DE3175
Trunk or Cargo Area Light(Hatchback, Compare to original - Option 2) - DE3022
Trunk or Cargo Area Light(Sedan, Compare to original - Option 1) - 194

9005 Bulbs

Used for: Headlight Bulb High Beam, Daytime Running Light Bulb

View all 30 replacement options for size 9005 →

H11 Bulbs

Used for: Headlight Bulb Low Beam

PIAA 15211 H11 Xtreme White Plus

PIAA 15211 H11 Xtreme White Plus

Xtreme White Hybrid bulbs are worth it if you want the lightest possible. They're brighter and provide better contrast versus stock, allowing drivers to see farther with greater safety on dark roads or high traffic areas like city streets at night time - because these lights don't have any filters that would interfere with their visibility! Made from quality materials such as quartz glass alongside our special alloy filaments which reflect heat much more efficiently than common metals do; this means they will last longer without getting too hot and eventually cracking under pressure (which can lead us to an accident).

$73.19

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View all 24 replacement options for size H11 →

7440 Bulbs

Used for: Back Up Light Bulb(Compare to original - Option 1)

View all 8 replacement options for size 7440 →

921 Bulbs

Used for: Back Up Light Bulb(Compare to original - Option 2)

View all 14 replacement options for size 921 →

7443R Bulbs

Used for: Brake Light Bulb, Tail Light Bulb

MAXGTRS 7443R Red LED Light Bulbs - Brake / Turn Signal / Tail

MAXGTRS 7443R Red LED Light Bulbs - Brake / Turn Signal /...

Upgrade your vehicle with the MAXGTRS 7443R Red LED Light Bulbs, delivering 360° illumination that is six times brighter than the average, thanks to their 4-sided light source and Auto Grade 3570 LED Chips. These bulbs produce a striking 24w 4000 lumens of red light, enhancing your driving safety by covering a wider area. Additionally, the bulbs’ Plug & Play design offers convenience, preventing hyper flash and error warnings without the need for extra resistors or parts. Choose the MAXGTRS 7443R Red LED Light Bulbs for a blend of bright, reliable, and easy-to-install lighting for your vehicle.

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Alla Lighting 7443R Red Flashing Light Bulb

Alla Lighting 7443R Red Flashing Light Bulb

Elevate your driving experience with Alla Lighting 7443R Red Flashing Light Bulbs. Each bulb boasts 39 high power 2835 SMD LEDs, delivering a combined 2000 lumens of vibrant light. Equipped with a smart IC driver and a projector-lens, these bulbs offer 360° light output and a stable, long-lasting performance of up to 30,000 hours. Designed for versatility, they are the perfect replacement for back-up reverse lights, brake tail lights, and center high-mounted stop lights (3rd brake lights) lamps. The bulbs feature an aluminum heat sink for optimal heat dissipation and operate efficiently within a wide voltage range of 9V~30V, thanks to the built-in intelligent IC driver.

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View all 10 replacement options for size 7443R →

2825 Bulbs

Used for: License Plate Light Bulb

View all 12 replacement options for size 2825 →

2827 Bulbs

Used for: Parking Light Bulb, Side Marker Light Bulb Front

KATUR Extremely Bright 2827 LED Light Bulbs

KATUR Extremely Bright 2827 LED Light Bulbs

Upgrade your vehicle's lighting with the KATUR Extremely Bright 2827 LED Light Bulbs and experience superior brightness, energy efficiency, and durability. Enjoy a crisp and clear white light with a color temperature of 6000K, providing enhanced visibility and a modern aesthetic. Don't settle for dim and outdated bulbs when you can have the best. Choose KATUR for exceptional quality and performance in LED lighting.With a T10 base type, these LED bulbs are a direct replacement for your existing car lights, making installation quick and hassle-free. Designed with three powerful 3030 SMD LEDs, these bulbs deliver an incredibly bright and crisp white light that enhances visibility and adds a touch of modern elegance to your vehicle. Thanks to the 360-degree beam angle, these LED bulbs offer a uniform and consistent illumination, eliminating hot spots and providing a wide coverage area. Whether you need to enhance your interior cabin lights, license plate lights, side marker lights, or any other compatible car light, these bulbs are up to the task. Operating at a voltage range of 12V to 16V, these bulbs are highly versatile and can be used in various vehicles without any compatibility issues. With a low wattage of 1.5W, they consume minimal power while still delivering an impressive brightness of 350 lumens. Say goodbye to inefficient incandescent bulbs and enjoy the benefits of energy-saving LED technology.

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View all 10 replacement options for size 2827 →

7443A Bulbs

Used for: Side Marker Light Bulb Rear

Auxbeam 7443 LED Bulbs W21/5W Switchback

Auxbeam 7443 LED Bulbs W21/5W Switchback

Introducing the Auxbeam 7443 LED Bulbs W21/5W Switchback, the ideal lighting solution for your car's general bulb needs. With their impressive specifications and advanced features, these bulbs provide superior illumination, stability, and versatility for an enhanced driving experience. Designed to fit into standard sockets, the Auxbeam 7443 LED Bulbs are suitable for a wide range of general bulb models, making them a versatile choice for various vehicles. Whether you need them for parking lights, daytime running lights (DRL), or turn signal lights, these bulbs have got you covered. One of the standout features of these bulbs is their faster on/off response time. They provide instant illumination when activated, ensuring that other drivers can quickly and clearly see your intentions. Additionally, these bulbs are vibration-resistant, ensuring that they stay securely in place even on bumpy roads, resulting in a longer lifespan. With their dual-color design, the Auxbeam 7443 LED Bulbs offer both xenon white and amber yellow options. The xenon white color is perfect for parking lights or daytime running lights (DRL), providing a crisp and modern look to your vehicle. The amber yellow color is specifically tailored for turn signal lights, offering a bright and attention-grabbing signal to indicate your intentions on the road. The built-in stable 2023 current IC driver ensures better compatibility and reliable performance. This driver allows the bulbs to function seamlessly with your vehicle's electrical system, providing a consistent and stable current flow for optimal performance. Equipped with 16 premium 3030 LED chips, these bulbs offer excellent brightness and a wide beam angle, ensuring even light distribution. The 2023 high-quality aviation aluminum material used in their construction ensures excellent cooling, preventing overheating and prolonging the lifespan of the bulbs. With their robust build and reliable performance, these bulbs will serve you for a long time.

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AUXITO 7443 Amber LED Bulbs

AUXITO 7443 Amber LED Bulbs

Illuminate the roads ahead with a new era of lighting. Designed for those who never compromise on performance, the AUXITO 7443 is not just a bulb, but a promise of brilliance, durability, and efficiency. Dive into the unparalleled intensity of its amber glow. Whether it's night or foggy conditions, expect a clarity that outshines the rest, ensuring your paths are always clearly lit and safe. Why trade brightness for efficiency? The advanced LED technology embedded within ensures that every watt is utilized to its full potential, casting bright lights while being easy on your vehicle's battery. Forget the frequent halogen bulb changes. Crafted for longevity, the AUXITO 7443 promises to be a companion on your many journeys ahead, significantly outlasting its conventional counterparts.

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OXILAM 7443A Amber Light Bulb - Turn Signal / Brake

OXILAM 7443A Amber Light Bulb - Turn Signal / Brake

Redefine brightness with the OXILAM 7443A. This is not just another bulb; it's a revolution in vehicular illumination. Discover a light that's 6 times more powerful than conventional halogen options. The advanced LED chipset within casts a 360° amber radiance, ensuring every drive is brighter and safer.  Experience the joy of a hassle-free connection. Designed to seamlessly blend with 98% of vehicle computer systems, it almost feels like this bulb was made for your car. Enhanced with an intelligent IC driver, say goodbye to those annoying dashboard errors. While most bulbs are content with simple air cooling, the OXILAM 7443A goes a step further. Crafted with aircraft-grade aluminum and armed with a silent turbo cooling fan, it's prepped to perform in the most demanding conditions, promising an extended life of up to 60,000 hours. Choose the OXILAM 7443A Amber Light Bulb, where cutting-edge technology meets lasting performance. Light up your journey like never before.

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View all 11 replacement options for size 7443A →

7440A Bulbs

Used for: Turn Signal Light Bulb Front, Turn Signal Light Bulb Rear

TUINCYN Amber Yellow 7440A/7440NA/7440 LED Bulb

TUINCYN Amber Yellow 7440A/7440NA/7440 LED Bulb

Amber 7440 Bulb Used For Turn Signals Light Bulb, Including Front And Rear Turn Signals, Not For Other Position. CANBUS Ready For 98% Vehicle, No Interference, No Hyperflash, And No Error Code, Donnot Need Extra Load Resistors. Plug& Play Bulb Easily To Be Installed Within 10 Mins.  Premium quality 6063 aluminum alloy material ensure the light bulb with good heat dissipation and bring low energy consumption. IP68 waterproof and good construction ensure the bulb works well between -40 degree~ 80 degree environment.

$19.99

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View all 6 replacement options for size 7440A →

DE3175 Bulbs

Used for: Dome Light Bulb, Map Light Bulb

EBAIFUN 31mm DE3175 Led Bulbs, White

EBAIFUN 31mm DE3175 Led Bulbs, White

Introducing our high-performance 31mm DE3175 DE3021 DE3022 DE3023 festoon LED bulbs! These bulbs are designed to provide superior illumination and enhance the overall lighting experience in your vehicle. With a sleek and compact design, these bulbs are a perfect replacement for your existing car light bulbs. Equipped with 24-SMD 4014 type chipsets, these bulbs deliver an impressive brightness of approximately 400Lm, casting a brilliant 6000K white light. The stable light body structure ensures consistent and reliable performance, instantly upgrading the lighting system of your car. One of the key advantages of these LED bulbs is their exceptional lifespan. With a longevity of over 50,000 hours, you can rely on these bulbs to illuminate your path for years to come. The input current protection feature safeguards the circuit and ensures a safe temperature range, preventing any potential damage.

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Marsauto DE3175 LED Interior Bulb

Marsauto DE3175 LED Interior Bulb

Product Benefits: More Longevity: Built-in constant current IC for long lifespan, 5 times longer than a halogen bulb. Vibration resistant, energy-saving, low power consumption to reach a long LED bulb life up to 50,000 hours. Wide Application: Interior dome lights, map lights, license plate lights, parking lights, corner lights, trunk lights, side marker lights, courtesy lights, cargo lights, trunk lights, stepwell lights, vanity lights, etc. Easy Installation: The DE3175 LED Light bulb is easy to install, just plug and play! If it doesn’t light up, please flip it 180 degrees then it should light up

$8.99

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View all 14 replacement options for size DE3175 →

DE3022 Bulbs

Used for: Trunk or Cargo Area Light(Hatchback, Compare to original - Option 2)

Yorkim DE3022 LED Bulb 31mm Festoon LED Bulb

Yorkim DE3022 LED Bulb 31mm Festoon LED Bulb

Super Bright 10-SMD 4014 Chipset - 360-degree lighting angle design, No blind spot, 300% brighter than stock lamps Latest LED Technology - No flickering, No UV light Emission, & No IR radiation; Easy plug-and-play installation High-Quality Aluminum Body - Low temperature, low power consumption, & long-lasting life of up to 50,000 hours. Fitment- Fit numerous applications - DE3021 DE3022 DE3023 DE3175 3021 3022 3528 3175 6428 6430 7065 6614 6614F 6641 12818 12842 30922 F30-WHP TS-14V1CP bulbs.

$11.99

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TUINCYN DE3022 1.25

TUINCYN DE3022 1.25

Used for Dome Light, Map Light, Trunk Light, License Plate Light, Side Marker, Backup Light, Side Door Courtesy Light, Luggage Compartment Light, Cargo Light, etc. Product Benefits: Easy to install, Just plug and play, no wiring needed. Point to point welding, the light body structure and firm, not easy to damage. Energy efficient with new LED technology reduces power consumption. 360 Degree Beam Angle design lights up every corner. Faster on/off response time.  

$9.99

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View all 12 replacement options for size DE3022 →

194 Bulbs

Used for: Trunk or Cargo Area Light(Sedan, Compare to original - Option 1)

View all 21 replacement options for size 194 →

This page covers the bulb sizes for the 2018 Mazda Mazda3 and helps you verify the correct replacement by lighting position. Whether you are changing a headlight, turn signal, interior lamp, or cargo light, matching the bulb to the exact location is the easiest way to avoid buying the wrong part.

Bulb fitment on the 2018 Mazda Mazda3 can vary by body style and lighting package, so it is important to compare the bulb chart with your car before ordering. Use the listings here as a guide for low beam, high beam, daytime running light, brake light, tail light, and other common exterior and interior bulbs.

For best results, confirm your trim, market, and body style before purchase, since sedan and hatchback versions may use different cargo or trunk bulbs and some lighting packages can change the fitment. If your Mazda3 uses halogen bulbs, the chart below should help you match the original size; if the car has been converted to LED or has aftermarket lighting, the installed bulb may not match the factory listing. Always check the bulb already in the vehicle, especially for headlight and rear lamp replacements, because previous owners may have installed non-original parts. When in doubt, remove the bulb and compare the base and connector before buying a replacement.

FAQ

What bulb size is the low beam on a 2018 Mazda Mazda3?

The low beam headlight bulb listed for the 2018 Mazda Mazda3 is H11.

What bulb size is the high beam on this Mazda3?

The high beam headlight bulb listed for the 2018 Mazda Mazda3 is 9005.

What bulb does the daytime running light use?

The daytime running light bulb listed for this vehicle is 9005.

What is the front turn signal bulb size?

The front turn signal light bulb listed for the 2018 Mazda Mazda3 is 7440A.

What is the rear turn signal bulb size?

The rear turn signal light bulb listed for the 2018 Mazda Mazda3 is 7440A.

What bulb size is used for the brake light and tail light?

Both the brake light bulb and tail light bulb are listed as 7443R.

What are the front and rear side marker bulb sizes?

The front side marker light bulb is listed as 2827, and the rear side marker light bulb is listed as 7443A.

What bulb size is used for the license plate light?

The license plate light bulb listed for the 2018 Mazda Mazda3 is 2825.

What bulb size is used for the dome light and map light?

Both the dome light bulb and map light bulb are listed as DE3175.

What bulb size is used for the sedan trunk or cargo area light?

For the sedan, the trunk or cargo area light is listed as 194 for one original-equipment comparison option.

What bulb size is used for the hatchback cargo area light?

For the hatchback, the trunk or cargo area light is listed as DE3022 for one original-equipment comparison option.

Why does the page mention compare-to-original options for some bulbs?

Some positions may have more than one original-equipment comparison listing, which is why the page shows options for certain bulbs such as backup lights and cargo lights. This helps you match the bulb to the exact factory setup on your car.

Should I check the bulb before ordering a replacement?

Yes. Checking the installed bulb is the safest way to confirm fitment, especially if your Mazda3 has been modified, converted to LED, or repaired with non-original parts.

Mazda Mazda3 Bulb Size by Year