Ford Focus ST 2018 Bulb Size

Bulb size chart

H8 LED Bulbs

Used for: Fog Light Bulb Front

View all 4 replacement options for size H8 LED →

H1 Bulbs

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

NOVCAPAR H1 LED Headlight Bulbs - High And Low Beam

NOVCAPAR H1 LED Headlight Bulbs - High And Low Beam

Elevate your driving experience with the 2024 NOVCAPAR H1 LED Bulbs, the ultimate lighting upgrade that brings both style and safety to your vehicle. Engineered for perfection, these bulbs offer an incredible 600% increase in brightness compared to traditional halogen bulbs. With 24,000 lumens of pure 6500K cool white light, you'll see further and clearer, transforming your night drives into a safer and more enjoyable journey. Installation is a breeze with our true plug-and-play design. The NOVCAPAR H1 bulbs are crafted to fit perfectly without any modifications or additional wiring, saving you time and money. Whether you're upgrading your high beams, low beams, or fog lights, our bulbs are the hassle-free solution you've been looking for. What sets these bulbs apart is their durability and reliability. Equipped with 12 advanced CSP chips and an innovative dual cooling system, these fanless bulbs are built to last over 50,000 hours. They ensure optimal performance in any weather condition, freeing you from the frustration of frequent replacements. The NOVCAPAR H1 bulbs also feature a perfect beam pattern that eliminates dark spots, providing consistent and clear illumination across your path. Drive with confidence, knowing that you have the best lighting technology leading the way.

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AUXLIGHT H1 LED Fog Light Bulbs 6000K Xenon White

AUXLIGHT H1 LED Fog Light Bulbs 6000K Xenon White

Upgrade your vehicle’s visibility with the AUXLIGHT H1 LED Fog Light Bulbs, designed to deliver exceptional performance and reliability. These bulbs are perfect for fog lights and daytime running lights (DRL), providing a brilliant 6000K Xenon White light that enhances both safety and style on the road. Harness the power of advanced COB technology with two high-quality COB-1908 chips per bulb, delivering a super bright, clear beam without any glare or shadowed areas. With 1500 lumens per bulb (3000 lumens total), these lights ensure optimal visibility in foggy conditions, giving you the confidence to drive in challenging weather. Crafted from full aviation-grade aluminum with a built-in heat sink, the AUXLIGHT bulbs are designed for superior heat dissipation, resulting in a low operating temperature and extended lifespan of up to 50,000 hours. This means less worry about replacements and more focus on the road ahead. Installation is quick and easy with the plug-and-play design, making it a direct replacement for stock halogen fog bulbs. The non-polarity feature simplifies the process, though vehicles with a CANBUS system may require a load resistor or error decoder to bypass any error codes.

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View all 21 replacement options for size H1 →

D3S Bulbs

Used for: Headlight Bulb High Beam and Low Beam

View all 10 replacement options for size D3S →

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 →

921 Bulbs

Used for: Back Up Reverse Light Bulb

View all 14 replacement options for size 921 →

3157R Bulbs

Used for: Brake Light Bulb, Tail Light Bulb

View all 13 replacement options for size 3157R →

168 Bulbs

Used for: Parking Light Bulb

View all 17 replacement options for size 168 →

2827 Bulbs

Used for: 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 →

194NA Bulbs

Used for: Side Marker Light Bulb Rear

Marsauto 194 LED Light Bulbs Amber Yellow

Marsauto 194 LED Light Bulbs Amber Yellow

Introducing the Marsauto 194 LED Light Bulbs in Amber Yellow, the perfect lighting solution for your car's various applications. With their impressive brightness and ease of installation, these bulbs will stay with you all the time, providing enhanced visibility and style.Experience a super bright light output with the Marsauto 194 LED Light Bulbs. With 200 lumens of brightness, these bulbs ensure excellent visibility in a variety of applications. Whether you need them for map lights, dome lights, license plate lights, dashboard instruments, trunk lights, or courtesy lights, these bulbs will illuminate your vehicle with a vibrant amber yellow glow. Installation is a breeze with the Marsauto 194 LED Light Bulbs. With their user-friendly design, you can easily install them in just 3 minutes. Simply remove your old bulbs and replace them with the Marsauto LEDs for an instant upgrade. There's no need for complex wiring or modifications – it's a hassle-free process that anyone can do. The Marsauto 194 LED Light Bulbs will stay with you all the time, providing reliable and long-lasting performance. Whether you're driving during the day or night, these bulbs will consistently deliver the illumination you need. You can count on them to enhance your visibility and add a touch of style to your vehicle's interior and exterior lighting. Upgrade your car's lighting system with the Marsauto 194 LED Light Bulbs in Amber Yellow and enjoy enhanced brightness, easy installation, and versatile applications. With their super bright light output, quick installation, and compatibility with various car lighting functions, these bulbs are the perfect choice for improving your driving experience. Trust Marsauto for high-quality lighting solutions that will exceed your expectations.

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Alla Lightning 194NA LED Amber Bulbs

Alla Lightning 194NA LED Amber Bulbs

Each bulb is quipped with 18pcs high power and high illumination 3014 SMD LEDs; Built-in smart IC driver for stable current control and longer lifespan; Each bulb is about 240 lumens, fully 360° light output. More than 400% brighter than stock lamps. Equipped with aluminum heat sink for the best heat dissipation. Especially designed for license plate lights, side marker lights, parking lights, interior map, dome, trunk, door courtesy, stepwell lights lamps.

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View all 12 replacement options for size 194NA →

7440A Bulbs

Used for: Turn Signal Light Bulb Front(Hatchback, Compare to original - Option 1)

View all 6 replacement options for size 7440A →

7507 Bulbs

Used for: Turn Signal Light Bulb Front(Hatchback, Compare to original - Option 2)

KATUR 7507 LED Yellow Bulbs (BAU15S Base)

KATUR 7507 LED Yellow Bulbs (BAU15S Base)

Enhance your driving experience with the KATUR 7507 LED Yellow Bulbs. Designed to deliver superior performance, these bulbs feature 12 high-power 3020 LED chips per bulb, boasting a maximum capacity of 80W while operating at an efficient 5.2W. With their distinctive Amber Yellow color, these bulbs provide optimal visibility and a unique aesthetic appeal. Say goodbye to dark spots and shadowed areas. These bulbs offer a perfect beam pattern, providing consistent and uniform light distribution in conditions of poor visibility caused by rain, fog, dust, or snow. Drive with confidence knowing that your surroundings are well-illuminated without causing glare to other drivers. 360° Full Angle Light: Enjoy an astounding emitted light effect with the KATUR 7507 LED Yellow Bulbs. Designed with a 360-degree full angle light, these bulbs deliver comprehensive and all-encompassing lighting, eliminating blind spots and ensuring optimal visibility from all angles. Rapid On/Off Response: Safety is a priority, and these bulbs deliver. With a lightning-fast on/off response time of just 0.1s, there is no delay in signaling your intentions. Experience a safer and more reliable turning experience, alerting other drivers promptly and effectively. Double Heat Dissipation: Built with an aircraft-grade aluminum body and a unique bump appearance design, these bulbs provide excellent heat dissipation. The increased heat dissipation area ensures optimal performance and longevity. With wide voltage and constant current, these bulbs offer a lifespan of up to 60,000 hours, ensuring long-lasting durability.

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View all 9 replacement options for size 7507 →

3757A Bulbs

Used for: Turn Signal Light Bulb Rear(Hatchback, Compare to original - Option 2)

View all 10 replacement options for size 3757A →

3157A Bulbs

Used for: Turn Signal Light Bulb Rear(Sedan, Compare to original - Option 1)

TUINCYN 3157A LED Amber Bulb

TUINCYN 3157A LED Amber Bulb

Standard 3157 LED Bulb Lamp with 5630 33SMD High Power LEDs, Brighter than Normal Incandescent Bulbs. Cross-Compatibility: Fits 3047, 3057, 3057A, 3155, 3157, 3157A, 3157NA, 3357, 3357A, 3454NA, 3457, 3457A, 3457NA, 3757A, 3156, 3056, 3356, 3456, 4156, 4057, 4114, 4157, 4157NA, 5702A, 5702AK Used for Tail Lights, Brake Lights, Reverse Lights, Turn Signals Lights, Side Marker Lights, Rear Light, Stop Lamp, Backup Lights, etc. Easy to install, plug and play bulb, no wiring needed. Point-to-point welding, the light body structure and firm, not easy to damage. 360 Degree Beam Angle design lights up every corner. Faster on/off response time.

$13.99

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AUXITO LED Turn Signal Light Bulbs 3157 LED Bulbs Amber Yellow

AUXITO LED Turn Signal Light Bulbs 3157 LED Bulbs Amber Y...

Non-polarity. Can be used for front rear turn signal light, side marker light, blinker light, parking light, daytime running light, brake light, tail light, etc. When these 3157 led amber bulbs are used for turn signal lights or blinker lights, some vehicles may meet canbus issues, such as flicker, hyper flash or error warning, etc, load resistors or flasher relay may be required to solve the issues, you can contact us through Amazon Buyer Message to get help and solutions

$16.19

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Philips 3157A LLB2 Miniature Bulb

Philips 3157A LLB2 Miniature Bulb

The Philips 3157A LLB2 miniature bulb is a halogen bulb that provides twice the life of standard incandescent bulbs. It has a long-life rating of 2,500 hours and is used in many applications such as headlamps, turn signal lights, license plate lights and marker lamps. The Miniature Bulb by Philips is an original equipment quality seal for the most reliable performance. Always replace in pairs to ensure a symmetric light beam from both bulbs on the road. Bulbs dim over time. This package contains two miniature bulbs with one year warranty.

$5.76

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View all 13 replacement options for size 3157A →

This 2018 Ford Focus ST bulb size page is designed to help you verify the correct bulbs by lighting position before you buy replacements. Because the Focus ST can use different lamps depending on body style, trim, and lighting package, it is important to match the bulb to the exact location on the car rather than relying on a single universal fitment.

Use this guide to check common exterior lights such as headlights, fog lights, turn signals, brake lights, tail lights, side markers, parking lights, and reverse lights. The goal is to make bulb replacement faster and more accurate for your 2018 Ford Focus ST, whether you drive a hatchback or another market-specific version.

Fitment can vary by trim, market, and whether the car has halogen, HID, or LED lighting equipment, so always confirm the installed bulb before ordering. Some positions may have different bulb choices for different body styles, and aftermarket LED conversions can change the required part type, beam pattern, or warning behavior. If your Focus ST has been modified, or if the lighting package is not original, compare the bulb in the housing with the listing on this page before purchase to avoid mismatches.

FAQ

What is the main purpose of this 2018 Ford Focus ST bulb size page?

It helps you match the correct bulb to each lighting position on the car, such as low beam, high beam, fog light, turn signal, brake light, tail light, parking light, side marker, and reverse light.

What low beam bulb does the 2018 Ford Focus ST use?

The page lists H11 for the low beam on one configuration, and D3S for the headlight bulb set on another configuration. This is why checking the exact lighting package matters before ordering.

What high beam bulb fits the 2018 Ford Focus ST?

The listed high beam bulb is H1. Some versions also show a D3S headlight bulb entry, so verify the installed setup on your car before replacing anything.

Which front turn signal bulb should I use on a hatchback Focus ST?

For the hatchback front turn signal, the page shows two possible original-style options: 7440A and 7507. Use the one that matches the bulb already installed in your vehicle.

What bulb is used for the rear turn signal on a sedan?

The rear turn signal bulb listed for the sedan is 3157A, shown as an original-style option for that body style.

What bulb fits the rear turn signal on a hatchback?

For the hatchback rear turn signal, the page lists 3757A as an original-style option.

What are the brake light and tail light bulb sizes for this model?

Both the brake light bulb and the tail light bulb are listed as 3157R on this page.

What bulb does the front fog light use on the 2018 Ford Focus ST?

The front fog light is listed as H8 LED. If your car has been modified, confirm that the housing and connector still match the original setup.

What bulb is used for the reverse light?

The back up reverse light bulb listed for this model is 921.

What are the side marker bulb sizes for the 2018 Ford Focus ST?

The front side marker bulb is listed as 2827, and the rear side marker bulb is listed as 194NA.

What is the parking light bulb size?

The parking light bulb listed on this page is 168.

Why do some bulb sizes differ between hatchback and sedan versions?

Body style can affect the lamp housing and socket design, so the hatchback and sedan may use different bulbs for the same lighting function. That is why the page separates some front and rear turn signal fitments by body style.

Can I switch from halogen to LED bulbs on my Focus ST?

Yes, but aftermarket LED conversions may require additional parts, such as resistors or adapters, and they may not always fit or perform like the original bulb. Check the housing, connector, and beam pattern before converting.

Should I check the old bulb before buying a replacement?

Yes. The safest approach is to remove the installed bulb and compare its number to the listing on this page, especially if your car has a different trim, market-specific lighting package, or previous modifications.

Ford Focus ST Bulb Size by Year