RAM 3500 2018 Bulb Size

Bulb size chart

9005 Bulbs

Used for: Headlight Bulb High Beam, Headlight Bulb Low Beam(with projector-type headlights)

View all 30 replacement options for size 9005 →

H11 Bulbs

Used for: Headlight Bulb Low Beam(without projector-type headlights)

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 Reverse Light Bulb (with projector-type headlights)

View all 8 replacement options for size 7440 →

921 Bulbs

Used for: Back Up Reverse Light Bulb (without projector-type headlights), Center High Mount Stop Light Bulb, Trunk or Cargo Area Light

View all 14 replacement options for size 921 →

3057R Bulbs

Used for: Brake Light Bulb(without projector-type headlights)

PA 3057 Red Light Bulb - Turn Signal, Side Marker, Stop, Back, Tail Light

PA 3057 Red Light Bulb - Turn Signal, Side Marker, Stop, ...

FITMENT - Compatible with 3056, 3057, 3156, 3157, and 4157 bulbs. Commonly used for various vehicle lights such as Parking, Indicator, Direction Indicator, Third Stop, Rear, Stop, Signal Turn, Day Running, and Tail Lights (Specific application may vary by vehicle model). EASY INSTALLATION - Designed with Constant Current technology for a simple plug-and-play setup. Not suitable for CK sockets. NOTICE - Hyper flash prevention may require a Load resistor when replacing Turn Signal Lights. Alternatively, some vehicles may require a flasher relay to resolve fast blinker issues.

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KATUR Red 3057 LED Light Bulb

KATUR Red 3057 LED Light Bulb

Why would you like this product? Enhanced Visibility with 4014 LED Chips Utilizing super bright 4014 48Chips, these LEDs deliver optimal beam patterns for superior visibility. Say goodbye to dark spots, short beams, and scattered light. Enjoy 360-degree lighting that produces an astonishing emitted light effect. Outstanding Performance Designed to be waterproof, the 3157 3156 LED Bulbs can withstand any harsh weather conditions. They provide excellent visibility while driving, even in situations with poor visibility caused by rain, fog, dust, or snow. Efficient Heat Dissipation Design Incorporating a large aluminum heat sink, these LEDs effectively dissipate heat, ensuring trouble-free operation and outstanding heat resistance even under high temperatures. This design not only enhances lighting efficiency but also extends the service life to over 50,000 hours. Built for Durability Featuring a robust aluminum housing and a glass lens projector, these LEDs offer maximum light output. The aircraft-grade aluminum heat sink maintains low temperatures, while the built-in constant current IC ensures a longer lifespan and minimal power consumption. With a working lifespan of over 50,000 hours, they outlast halogen bulbs by 50 times.

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View all 12 replacement options for size 3057R →

194 Bulbs

Used for: License Plate Light Bulb, Glove Box Light Bulb

View all 21 replacement options for size 194 →

7441 Bulbs

Used for: License Plate Light Bulb, Glove Box Light Bulb

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

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View all 13 replacement options for size 7441 →

3157A Bulbs

Used for: Parking Light Bulb(without projector-type headlights), Side Marker Light Bulb Front(without projector-type headlights), Turn Signal Light Bulb Front(without projector-type headlights)

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 →

3057A Bulbs

Used for: Side Marker Light Bulb Rear(without projector-type headlights)

View all 10 replacement options for size 3057A →

3157R Bulbs

Used for: Tail Light Bulb(without projector-type headlights)

View all 13 replacement options for size 3157R →

3057 Bulbs

Used for: Turn Signal Light Bulb Rear(without projector-type headlights)

KaTur 3057 LED  High-Power Bulbs

KaTur 3057 LED High-Power Bulbs

3157 T25 LED Bulbs 360°viewing angle for better, no blind spot lighting angle design, brings an astounding emitted light effect, allover light emission to upgrade your car with super bright light to alert other drivers earlier. Xenon White lighting offers more expansive vision and clearer of the surrounding. Energy-Saving, low temperature, low power consumption, better heat dissipation, and much longer lifespan, lasting up to 60,000 hours. Universal 3157 T25 LED Bulbs Standard Socket Fit directly into multiple bulb size sockets such as 3156 3157 3056 4156 3047 3157A 3057 3357 3457 4057 4114 4157 LED Bulbs. Apply to most cars, trucks, SUVs, or vans as Backup-light, Tail light, and Brake light.

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Philips CrystalVision Miniature 3057 Bulb

Philips CrystalVision Miniature 3057 Bulb

The Philips CrystalVision Miniature 3057 Bulb is a great choice for drivers looking to personalize their vehicle. These bulbs are designed for use in turn signals, side markers, and tail lights and provide a bright white light that will make your vehicle stand out on the road. The Philips CrystalVision line is known for delivering high-quality and reliable lighting solutions, and these miniature bulbs are no exception. Upgrade your vehicle's lighting with the Philips CrystalVision Miniature 3057 Bulb for a brighter and more personalized ride.

$4.75

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View all 12 replacement options for size 3057 →

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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View all 11 replacement options for size 561 →

578 Bulbs

Used for: Map Light Bulb

View all 12 replacement options for size 578 →

This 2018 RAM 3500 bulb size guide helps you verify the correct replacement bulb by lighting position, so you can match the right part before you buy. Because trim level, body style, and lighting package can change the fitment, it is important to check the exact lamp location on your truck rather than relying on a single bulb number for the whole vehicle.

Use this page to find common exterior and interior bulb sizes for the 2018 RAM 3500, including headlights, brake lights, turn signals, side markers, reverse lights, license plate lights, map lights, and cargo-area lighting. Some positions use different bulbs depending on whether the truck has projector-type headlights, so the chart is organized to make those differences easier to spot.

For the best fit, compare your truck’s trim and lighting package with the bulb chart before ordering. The 2018 RAM 3500 may use halogen bulbs in some configurations and LED units in others, and aftermarket LED conversions can change the required bulb type, socket fit, or warning behavior. If you are replacing a bulb that is hard to identify, remove the installed bulb and check the number printed on the base before purchase. This is especially helpful for exterior lamps that differ between projector-type and non-projector headlight setups, or when a previous owner has already modified the lighting.

FAQ

What is the purpose of this 2018 RAM 3500 bulb size page?

It helps you confirm the correct bulb size by lighting position, such as headlight, brake light, reverse light, or license plate light. That makes it easier to choose the right replacement for your specific 2018 RAM 3500 configuration.

Do all 2018 RAM 3500 trucks use the same bulbs?

No. Trim and lighting package can vary by market and body style, so some bulb sizes differ between trucks. Always match the bulb to the exact lamp position and check whether your truck has projector-type headlights.

What headlight bulb does a 2018 RAM 3500 use?

High beam uses 9005. Low beam uses 9005 on models with projector-type headlights, and H11 on models without projector-type headlights.

What bulb size is used for the front turn signal on a 2018 RAM 3500?

Front turn signal bulbs vary by headlight setup. With projector-type headlights, the front turn signal uses LED. Without projector-type headlights, it uses 3157A.

What bulb size is used for the rear turn signal?

Rear turn signal bulbs also vary by configuration. With projector-type headlights, the rear turn signal uses LED. Without projector-type headlights, it uses 3057.

What is the brake light bulb size on a 2018 RAM 3500?

With projector-type headlights, the brake light bulb is LED. Without projector-type headlights, the brake light bulb is 3057R.

What bulb does the 2018 RAM 3500 use for reverse lights?

Without projector-type headlights, the back up reverse light bulb is 921. With projector-type headlights, the back up reverse light bulb is 7440.

What bulb size is used for the center high mount stop light?

The center high mount stop light bulb is 921 on the 2018 RAM 3500.

What bulb size fits the license plate lights?

The license plate light bulb can be 194 or 7441 on the 2018 RAM 3500, depending on the application listed for your truck.

What bulb size is used for the map light?

The map light bulb is 578 on the 2018 RAM 3500.

What bulb size is used for the glove box light?

The glove box light bulb can be 194 or 7441 on the 2018 RAM 3500.

Are the interior cargo and engine compartment lights listed on this page?

Yes. The trunk or cargo area light uses 921, and the engine compartment light bulb is 561. These are useful when replacing interior or under-hood lighting on the 2018 RAM 3500.

Should I buy LED replacements for every bulb position?

Not necessarily. Some positions are already listed as LED, while others use halogen-style bulb numbers such as 9005, H11, 921, 194, 7441, 3157A, 3057, 3057R, 3057A, 7440, 578, and 561. Match the correct type to the socket and housing before upgrading.

How can I avoid buying the wrong bulb for my 2018 RAM 3500?

Check the bulb location, confirm whether your truck has projector-type headlights, and compare the installed bulb number if possible. This is the safest way to avoid fitment mistakes, especially if the truck has been modified or uses aftermarket lighting.

RAM 3500 Bulb Size by Year