Buick Regal Sportback 2018 Bulb Size

Bulb size chart

H8 LED Bulbs

Used for: Fog Light Bulb Front

View all 4 replacement options for size H8 LED →

H7 Bulbs

Used for: Headlight Bulb High Beam, Headlight Bulb Low Beam

View all 22 replacement options for size H7 →

921 Bulbs

Used for: Back Up Reverse Light Bulb

View all 14 replacement options for size 921 →

64136 Bulbs

Used for: Brake Light Bulb

View all 8 replacement options for size 64136 →

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 Don't settle for dim and outdated bulbs when you can have the best.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 →

7507 Bulbs

Used for: Turn Signal Light Bulb Rear

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 →

This page covers bulb sizes for the 2018 Buick Regal Sportback and is designed to help you quickly identify the correct replacement by lighting position. Whether you are changing a headlight, brake light, reverse light, or side marker, the goal is to make fitment easier and reduce guesswork before you buy.

For the 2018 Buick Regal Sportback, bulb type can vary depending on the exact lamp location and equipment level. Use the bulb chart on this page to match the correct bulb to the correct position, so you can compare the installed part with the listed size before ordering replacements.

Fitment can differ by trim, market, and lighting package, so always confirm what is actually installed on your vehicle before purchasing. Some positions may use halogen bulbs while others may be LED-based, and aftermarket conversions can change the original setup as well. If your Regal Sportback has been modified, or if a previous owner replaced bulbs or housings, the chart may not match every detail exactly. The safest approach is to inspect the existing bulb, check the connector style, and compare the physical base and lamp type before buying.

FAQ

What bulb size does the 2018 Buick Regal Sportback use for the low beam headlights?

The listed low beam headlight bulb size for the 2018 Buick Regal Sportback is H7.

What bulb size does the 2018 Buick Regal Sportback use for the high beam headlights?

The listed high beam headlight bulb size for the 2018 Buick Regal Sportback is H7.

What is the rear turn signal bulb size on a 2018 Buick Regal Sportback?

The rear turn signal light bulb size listed for this model year is 7507.

What bulb is used for the backup reverse light on this car?

The listed backup reverse light bulb size for the 2018 Buick Regal Sportback is 921.

What is the front fog light bulb size for the 2018 Buick Regal Sportback?

The front fog light bulb is listed as H8 LED.

What bulb size is used for the front side marker light?

The front side marker light bulb size listed for this vehicle is 2827.

What bulb size is listed for the brake light?

The brake light bulb size listed for the 2018 Buick Regal Sportback is 64136.

Why should I check the bulb by lighting position instead of buying by model name only?

Because the same model can use different bulbs in different locations, and some trims or lighting packages may change the setup. Matching by position helps avoid ordering the wrong bulb.

Do trim levels or market differences affect bulb fitment on the Regal Sportback?

Yes. Trim, market, and body style details can affect lighting equipment, so the exact bulb setup may vary from one vehicle to another.

Can I replace halogen bulbs with LED bulbs on this car?

In some positions, owners do convert halogen bulbs to LED, but fitment and performance can vary. Make sure the bulb base, housing space, and electrical compatibility are correct before switching.

What should I check before ordering replacement bulbs?

Check the installed bulb, the socket type, and whether the lamp is halogen or LED. It is also smart to compare the old bulb to the listing for your exact lighting position.

If my car has aftermarket lighting, will this bulb chart still apply?

Not always. Aftermarket conversions can change the original bulb type or housing, so the installed part should be verified before purchase.

Buick Regal Sportback Bulb Size by Year