Subaru Legacy 2018 Bulb Size

Bulb size chart

Fog Light Bulb Front - LED
Headlight Bulb High Beam - 9005
Headlight Bulb High Beam and Low Beam - LED
Headlight Bulb Low Beam - H11
Back Up Reverse Light Bulb - 921
Brake Light Bulb - LED
Center High Mount Stop Light Bulb - LED
Daytime Running Light Bulb - LED
License Plate Light Bulb - 168, 917
Parking Light Bulb - LED
Side Marker Light Bulb Front - LED
Side Marker Light Bulb Rear - 168NA
Tail Light Bulb - LED
Turn Signal Light Bulb Front - 7444NA
Turn Signal Light Bulb Rear - 7440A
Dome Light Bulb - DE3175
Interior Door Light Bulb - 168, 917
Map Light Bulb - DE3175
Trunk or Cargo Area Light - 194, 7441

9005 Bulbs

Used for: Headlight Bulb High Beam

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

Buy on Amazon →

View all 24 replacement options for size H11 →

921 Bulbs

Used for: Back Up Reverse Light Bulb

View all 14 replacement options for size 921 →

168 Bulbs

Used for: License Plate Light Bulb, Interior Door Light Bulb

View all 17 replacement options for size 168 →

917 Bulbs

Used for: License Plate Light Bulb, Interior Door Light Bulb

View all 12 replacement options for size 917 →

168NA Bulbs

Used for: Side Marker Light Bulb Rear

View all 11 replacement options for size 168NA →

7444NA Bulbs

Used for: Turn Signal Light Bulb Front

TUINCYN 7444NA W21W LED White Light Bulb

TUINCYN 7444NA W21W LED White Light Bulb

Introducing the TUINCYN 7444NA W21W LED White Light Bulb, a reliable and easy-to-install lighting solution for your car. With its advanced features and impressive specifications, this bulb is designed to provide bright and efficient illumination, enhancing your driving experience. Installation is a breeze with the TUINCYN 7444NA W21W LED White Light Bulb. It is a plug and play bulb, which means no complicated wiring or modifications are needed. Simply remove your old bulb and insert the TUINCYN LED bulb into the socket for an instant upgrade. It's a hassle-free process that saves you time and effort. The light body structure of this bulb is designed for durability and longevity. With point-to-point welding, the light body is firm and not easily damaged. This ensures that the bulb can withstand various road conditions and vibrations, providing you with a reliable lighting solution that will last. Experience exceptional lighting coverage with the 360-degree beam angle design of the TUINCYN LED bulb. This design ensures that every corner is illuminated, leaving no dark spots or shadows. Whether you're driving in the city or on winding roads, you can rely on the TUINCYN LED bulb to provide clear and consistent lighting. With its faster on/off response time, the TUINCYN 7444NA W21W LED White Light Bulb delivers instant illumination when activated. This quick response ensures that other drivers can easily see your vehicle, enhancing safety on the road.

Buy on Amazon →

View all 11 replacement options for size 7444NA →

7440A Bulbs

Used for: 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

Buy on Amazon →

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.

Buy on Amazon →

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

Buy on Amazon →

View all 14 replacement options for size DE3175 →

194 Bulbs

Used for: Trunk or Cargo Area Light

View all 21 replacement options for size 194 →

7441 Bulbs

Used for: Trunk or Cargo Area Light

KATUR T20 White/Amber Switchback LED Light Bulbs (7441)

KATUR T20 White/Amber Switchback LED Light Bulbs (7441)

The KATUR T20 White/Amber Switchback LED Light Bulbs (7441) are a great upgrade for your vehicle's lighting. These energy-efficient bulbs have a 12V operating voltage and are designed to last 50,000 hours, 50 times longer than traditional incandescent bulbs. The single-contact 7440 LED light bulb replaces most auto car incandescents and is well-matched with the original incandescent lights. The easy plug-and-play installation means you just have to plug it into the socket, and flip the bulb horizontally if it does not light up to match the + and - polarity. With 42 2835 SMD LED lights, this bulb provides bright and versatile white/amber switchback lighting. It is CE/RoHS compliant, ensuring high standards and quality. Choose the KATUR T20 White/Amber Switchback LED Light Bulbs for a longer-lasting and more versatile lighting solution.

$17.99

Buy on Amazon →

View all 13 replacement options for size 7441 →

The 2018 Subaru Legacy uses different bulb types depending on the lighting position, and this page is designed to help you verify the correct size before you buy replacements. Whether you are changing a headlight, tail light, interior lamp, or reverse light, checking the bulb by location is the easiest way to avoid ordering the wrong part.

Because trim level, lighting package, and market can change the exact setup, the 2018 Subaru Legacy may use LED units in some positions and traditional replaceable bulbs in others. Use this guide to match each bulb location with the correct fitment for your specific vehicle, including front and rear exterior lights and cabin lighting.

For the best fit, compare the bulb listed here with the bulb already installed in your car, especially if your Legacy has a different trim, factory LED lighting, or an optional package. Some positions may be LED assemblies rather than simple replaceable bulbs, and aftermarket LED conversions can require additional parts or may not work the same as the original halogen setup. If you are replacing a halogen bulb, confirm the base type before ordering, and always check the installed bulb first when possible so you can match the exact fitment and avoid surprises.

FAQ

What headlight bulb does a 2018 Subaru Legacy use for the low beam?

The listed low beam bulb for the 2018 Subaru Legacy is H11. Some versions of the vehicle may also have LED headlight units, so it is important to verify what is installed on your specific car before ordering.

What headlight bulb does the high beam use on this model?

The high beam bulb listed for the 2018 Subaru Legacy is 9005. If your car has an LED headlight setup, the bulb arrangement may be different from the standard halogen version.

Does the 2018 Subaru Legacy use LED fog lights?

Yes, the bulb chart shows the front fog light bulb as LED. On LED-equipped vehicles, the light may be part of an assembly rather than a simple replaceable bulb.

What bulb is used for the back up reverse light?

The back up reverse light bulb listed for the 2018 Subaru Legacy is 921.

What are the license plate light bulb sizes?

The license plate light bulb sizes listed are 168 and 917. Either size may appear depending on the exact lamp setup, so check the bulb already in the car if you want a perfect match.

What bulb fits the interior door light?

The interior door light bulb is listed as 168 or 917. These are common wedge-style bulbs used in several interior and courtesy light positions.

What bulb does the trunk or cargo area light use?

The trunk or cargo area light bulb is listed as 194 or 7441. If your cargo lamp has been changed before, confirm the base and shape before purchase.

What are the front turn signal bulb sizes?

The front turn signal light bulb listed for the 2018 Subaru Legacy is 7444NA.

What are the rear turn signal bulb sizes?

The rear turn signal light bulb listed for the 2018 Subaru Legacy is 7440A.

What bulb is used for the rear side marker light?

The rear side marker light bulb is listed as 168NA.

What bulb fits the dome light and map lights?

Both the dome light and map light bulbs are listed as DE3175. This is a useful match to confirm if you are replacing multiple interior bulbs at once.

Are the brake lights and center high mount stop light LED on the 2018 Subaru Legacy?

Yes, the bulb chart lists the brake light bulb and the center high mount stop light bulb as LED. On many LED setups, the light source is integrated into the lamp assembly.

Can trim level or market change the bulb sizes on this car?

Yes. Trim, lighting package, body style, and market can affect the exact bulb setup on a 2018 Subaru Legacy, especially for headlights and other exterior lighting.

Should I buy LED replacements for halogen bulbs?

Only if the bulb position and housing are compatible. Some aftermarket LED bulbs fit physically but may not perform correctly in reflector or projector housings, so it is best to match the original bulb type and verify fitment first.

Subaru Legacy Bulb Size by Year