RAM 2500 2021 Bulb Size

Bulb size chart

Fog Light Bulb Front - H11
Headlight Bulb High Beam - 9005LL
Headlight Bulb Low Beam - H11
Back Up Light Bulb - 7440
Brake Light Bulb - 7443
Center High Mount Stop Light Bulb - 921
License Plate Light Bulb - 194
Parking Light Bulb - 7444NA
Side Marker Light Bulb Front - 194
Tail Light Bulb - 7443
Turn Signal Light Bulb Front - 7444NA
Turn Signal Light Bulb Rear - 12174NA
Dome Light Bulb - 578
Engine Compartment Light Bulb - 561
Glove Box Light Bulb - 194
Map Light Bulb - 578
Roof Marker Light Bulb - 194NA
Trunk or Cargo Area Light - 921

H11 Bulbs

Used for: Fog Light Bulb Front, 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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9005LL Bulbs

Used for: Headlight Bulb High Beam

SEALIGHT Scoparc S2 9005LL/HB3 LED Light Bulbs

SEALIGHT Scoparc S2 9005LL/HB3 LED Light Bulbs

- 5 Min Easy Plug&Play: 1:1 plant of original halogen design for optimized compatibility, Install only 5 min without modification, no worry about the external driver being too big to install or the connector break - 1200 Ft Visibility Improved: Ditch your dim yellow halogens and make way for a 6500K bright white ones. Super focused beam pattern design provides wider and farther lighting range, adding confidence in night driving - Provide 60% Cooling: 12000RPM powerful turbofan provides up to 60% better cooling compared to those without fans. Just like drying hair with a hairdryer, which is more efficient than drying it naturally

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7440 Bulbs

Used for: Back Up Light Bulb

View all 8 replacement options for size 7440 →

7443 Bulbs

Used for: Brake Light Bulb, Tail Light Bulb

AUXITO 7443 LED Bulbs - Red

AUXITO 7443 LED Bulbs - Red

Upgrade your vehicle's brake lights with confidence, as the AUXITO 7443 LED Bulbs offer ultra-brightness and a safer lighting solution. These bulbs utilize advanced LED technology to deliver an intensified illumination that surpasses traditional incandescent bulbs. Enjoy a noticeable upgrade in brightness, making your brake lights highly visible and ensuring a safer driving experience for you and those around you. Say goodbye to complicated installations, as the AUXITO 7443 LED Bulbs are designed for a direct fit. Simply replace your existing bulbs with these LED counterparts, saving you time and effort. Additionally, these bulbs have versatile applications, making them suitable for various lighting functions beyond brake lights. Illuminate your turn signals, tail lights, or other compatible applications with the same confidence and superior brightness. Reliability is key, and the AUXITO 7443 LED Bulbs offer stable use and a longer lifespan. Built with quality and durability in mind, these bulbs provide a consistent lighting performance that you can rely on. Enjoy peace of mind knowing that these bulbs will last longer, saving you from frequent replacements and ensuring a stable and reliable lighting solution for your vehicle.

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921 Bulbs

Used for: Center High Mount Stop Light Bulb, Trunk or Cargo Area Light

View all 14 replacement options for size 921 →

194 Bulbs

Used for: License Plate Light Bulb, Side Marker Light Bulb Front, Glove Box Light Bulb

View all 21 replacement options for size 194 →

7444NA Bulbs

Used for: Parking Light Bulb, 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.

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View all 11 replacement options for size 7444NA →

12174NA Bulbs

Used for: Turn Signal Light Bulb Rear

View all 10 replacement options for size 12174NA →

578 Bulbs

Used for: Dome Light Bulb, Map Light Bulb

KATUR Festoon 578 (C5W) Led Bulbs

KATUR Festoon 578 (C5W) Led Bulbs

The KATUR Festoon 578 (C5W) Led Bulbs are a great choice for those looking to upgrade their car's lighting. With lower power consumption and a longer lifespan, these bulbs are more efficient and long-lasting than traditional incandescent bulbs. The fast light response and safe design of these bulbs make them a reliable choice for drivers. The high power 3014 chips and 180-degree illumination angle ensure there are no blind spots and provide bright, renewed lighting for your car. All LED Series products come in a static sealed bag for long-term preservation and are error-free with CANBUS technology. Choose the KATUR Festoon 578 (C5W) Led Bulbs for a brighter and more efficient car lighting solution.

$14.99

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561 Bulbs

Used for: Engine Compartment Light Bulb

Sylvania Long Life 561 Miniature Bulb

Sylvania Long Life 561 Miniature Bulb

The Sylvania 561 Long Life Mini Bulb is an excellent choice for replacing the interior or exterior lighting in your car or truck. These bulbs have been designed to last longer, withstanding road shock and vibration. With their durable filament construction and unique gas mixture, the 3 Long Life bulbs have an extended lifespan, saving you time and money on replacements. Sylvania's OEM status guarantees high-quality lighting that enhances both safety and functionality in your vehicle. The 3 bulb emits bright, white light and is simple to install. It is also compliant with road regulations.

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Ruiandsion 561 LED Interior Bulbs

Ruiandsion 561 LED Interior Bulbs

Upgrade your car's lighting system today with the Ruiandsion 561 LED Interior Bulbs and experience enhanced brightness and longevity. These bulbs require no wire modification and consume low power, offering energy efficiency. With a wide lighting angle of 360 degrees, they provide comprehensive and uniform lighting coverage.Boasting an impressive service life of 50,000 hours, these bulbs are built to last. They are specifically designed for car interior lights, including dome and map lights. Featuring a low working temperature and excellent heat dissipation, these bulbs ensure efficient and safe operation. Installation is a breeze and can be done in minutes without the need for any tools. Equipped with 12 pieces of high-quality 2835 LED chipset per bulb, the Ruiandsion 561 LED Interior Bulbs deliver a much brighter illumination compared to the original bulbs. The aluminum body design further enhances heat dissipation for prolonged lifespan.

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194NA Bulbs

Used for: Roof Marker Light Bulb

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 →

This 2021 RAM 2500 bulb size guide helps you verify the correct bulbs by lighting position, so you can replace the right lamp without guessing. Whether you are changing a headlight, marker light, dome light, or cargo lamp, matching the bulb to the exact location is the easiest way to avoid fitment mistakes.

Because the 2021 RAM 2500 can use different lighting setups depending on trim, body style, and market, the same model year may not use the same bulb in every spot. Use the bulb chart on this page to compare each exterior and interior light position before you buy replacements.

For best results, confirm your trim and lighting package before ordering, since halogen and LED-equipped trucks may differ in bulb type or housing design. Aftermarket conversions can also change what fits, especially for headlights, fog lights, and marker lamps. If you are unsure, remove the installed bulb and check the number printed on the base before purchasing a replacement. That quick step is especially useful on a work truck like the RAM 2500, where previous owners may have already swapped in non-original bulbs.

FAQ

What is the low beam bulb size for a 2021 RAM 2500?

The low beam headlight bulb listed for the 2021 RAM 2500 is H11.

What bulb does the high beam use on a 2021 RAM 2500?

The high beam headlight bulb listed for this truck is 9005LL.

What size is the front fog light bulb on a 2021 RAM 2500?

The front fog light bulb listed for the 2021 RAM 2500 is H11.

What bulb fits the front turn signal and parking light positions?

Both the front turn signal light and the front parking light are listed as 7444NA bulbs.

What is the rear turn signal bulb size on a 2021 RAM 2500?

The rear turn signal light bulb listed for this model year is 12174NA.

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

The brake light bulb and tail light bulb are both listed as 7443.

What size is the backup light bulb?

The backup light bulb listed for the 2021 RAM 2500 is 7440.

What bulb fits the license plate light?

The license plate light bulb listed for this truck is 194.

What bulb does the dome light use?

The dome light bulb listed for the 2021 RAM 2500 is 578.

What bulb size is used for the map light?

The map light bulb listed for this model is 578.

What bulb fits the glove box light?

The glove box light bulb listed for the 2021 RAM 2500 is 194.

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

The front side marker light bulb listed is 194.

What bulb fits the center high mount stop light?

The center high mount stop light bulb listed for the 2021 RAM 2500 is 921.

What bulb is used for the cargo area light?

The trunk or cargo area light bulb listed on this page is 921.

What bulb fits the roof marker light?

The roof marker light bulb listed for the 2021 RAM 2500 is 194NA.

What bulb is used for the engine compartment light?

The engine compartment light bulb listed for this truck is 561.

Can bulb sizes vary on the 2021 RAM 2500?

Yes. Trim level, body style, and lighting package can change the bulb used in some positions, so it is important to match the bulb to the exact light location.

Should I check the old bulb before buying a replacement?

Yes. Checking the installed bulb is one of the best ways to confirm fitment, especially if the truck has aftermarket lighting or a previous owner has made changes.

RAM 2500 Bulb Size by Year