Find the Right Bulbs for Your 2500/3500
Select your year and factory headlight type to see the bulbs and recommended Fuzed LED upgrades.
Ram 2500/3500
| Location | Bulb Size | Recommended Upgrade |
|---|---|---|
| Low Beam | H11 | Shop F1 LED → |
| High Beam | 9005 | Shop F1 LED → |
| Fog Lights | H11 / H16 | Shop F1 LED → |
| Reverse Lights | 921 / T15 | Shop Reverse LEDs → |
| License Plate | 194 / T10 | Shop Glow Series → |
Build Your 2500/3500 LED Upgrade
Upgrade the main exterior lighting positions individually, or use this list to build a complete setup.
Factory LED Headlights
This configuration may use an integrated factory LED headlight assembly instead of a replaceable H11 low-beam bulb.
We do not recommend ordering a H11 headlight bulb for this configuration without verifying your factory lighting setup first.
Reverse and license plate LED upgrades may still be available for your 2500/3500.
Looking for the correct bulb sizes for a 2019–2024 Ram 2500 or Ram 3500?
This guide covers the common factory lighting configurations found on 2019, 2020, 2021, 2022, 2023 and 2024 Ram 2500/3500 trucks, with special attention to the difference between factory halogen reflector headlights and factory LED headlights.
Important: Do not order headlights by model year alone. These trucks were available with both replaceable halogen headlight bulbs and factory LED headlight assemblies. Use the vehicle finder above to select your year and factory lighting type before ordering.
Quick Navigation
- Quick Bulb Size Chart
- Headlight Bulb Sizes
- Factory Halogen vs Factory LED
- Fog Light Bulb Size
- Complete Your Ram LED Upgrade
- LED Headlight Installation
- CANBUS & Electrical Notes
- Rear & Interior Lighting
- Frequently Asked Questions
2019–2024 Ram 2500/3500 Quick Bulb Size Chart
The most important fitment distinction is the factory headlight assembly.
| Application | Factory Halogen Reflector | Factory LED | Recommended Upgrade |
|---|---|---|---|
| Low Beam | H11 | Factory LED assembly | Shop H11 LED Low Beam → |
| High Beam | 9005 | Factory LED assembly | Shop 9005 LED High Beam → |
| Fog Lights | H11 when equipped with replaceable halogen fog lights | Factory LED / varies by equipment | Shop H11 LED Fog Lights → |
| Front Turn Signal | 7443 | Integrated factory LED | Keep factory bulb / no LED upgrade recommended |
Factory halogen reflector trucks: H11 low beam / 9005 high beam.
Factory LED trucks: Do not order H11 or 9005 headlight bulbs. The headlight uses an integrated factory LED assembly.
2019–2024 Ram 2500/3500 Headlight Bulb Sizes
Factory Halogen Reflector Headlights
If your Ram 2500 or 3500 has the factory halogen reflector headlight assembly, the replaceable bulb sizes are:
Low Beam: H11 — Shop H11 Fuzed LED Low Beams →
High Beam: 9005 — Shop 9005 Fuzed LED High Beams →
If you want to replace both the low and high beams together, Fuzed also offers a vehicle-specific kit:
Shop the 2019–2024 Ram High + Low Beam LED Kit →
Fitment note: This H11/9005 combination applies to the factory halogen reflector headlight configuration. Aftermarket headlights can use different bulbs, so check the bulb number on the installed housing or bulb before ordering.
How to Tell if Your Ram Has Factory Halogen or Factory LED Headlights
Ram HD trucks in this generation were available with more than one factory lighting package. That means two trucks from the same model year can require completely different headlight service parts.
Factory Halogen Reflector
The halogen reflector configuration uses conventional replaceable bulbs. For the applications covered by this guide:
- Low beam: H11
- High beam: 9005
Factory LED Headlights
Factory LED headlights do not use a conventional H11 low-beam or 9005 high-beam replacement bulb. If your truck has the factory LED assembly, do not order the halogen-to-LED bulb kits listed above.
If you are unsure which system you have, use the fitment finder above and select Not Sure / Verify First rather than guessing.
2019–2024 Ram 2500/3500 Fog Light Bulb Size
Halogen Fog Lights: H11 — Shop H11 Fuzed LED Fog Lights →
Some trucks use factory LED fog lights or may have no fog lights at all. Use the fog-light selector in the vehicle finder above before ordering.
Do not assume the fog-light bulb from the trim name alone. Select whether your truck has replaceable halogen fog lights, factory LED fog lights, or no fog lights.
Complete Your Ram 2500/3500 LED Upgrade
For a factory-halogen truck with replaceable halogen fog lights, the main forward-lighting upgrade is:
H11 Fuzed LED
Shop Low Beam → High Beam
9005 Fuzed LED
Shop High Beam → Fog Lights
H11 when equipped
Shop Fog Lights → High + Low Beam Kit
Vehicle-specific Ram kit
Shop Complete Headlight Kit →
The goal is not simply to install the bulb with the largest advertised lumen number. Correct fitment, LED emitter position, beam pattern, thermal management and housing compatibility are all important to usable road illumination.
2019–2024 Ram LED Headlight Installation
The factory-halogen headlight configuration uses replaceable bulbs, making it possible to upgrade the low and high beams without replacing the complete headlight assembly.
Detailed Headlight Install Video
When installing Fuzed LED headlight or fog-light bulbs, orient the LED emitters horizontally — facing left and right — so the bulb works correctly with the reflector housing.
If an H11 or 9005 LED does not illuminate after installation, the connector may be reversed. Disconnect it, rotate the plug 180 degrees, reconnect it, and test again.
CANBUS, Flickering & Electrical Notes
Fuzed has tested the vehicle-specific halogen-headlight applications sold for these trucks. Use the Ram-specific product recommendation whenever one is available rather than selecting a generic bulb only by base size.
Front turn signals: Factory halogen-headlight trucks use a 7443 front turn-signal bulb. Factory LED-headlight trucks use an integrated LED front turn signal. Fuzed LED does not recommend converting the 7443 front turn signal to LED on this application because doing so can cause CANBUS, bulb-monitoring or other electrical-system issues. For that reason, no LED turn-signal product is linked in this guide.
Rear & Interior Lighting
If you want an interior upgrade without piecing together individual bulbs, Fuzed offers a vehicle-specific kit:
Shop the 2019–2024 Ram 2500/3500 Interior LED Bulb Kit →
Shop the 2019–2024 Ram 2500/3500 Reverse LED Bulb Kit →
Frequently Asked Questions
What size headlight bulb does a 2019–2024 Ram 2500 use?
With factory halogen reflector headlights, the low beam is H11 and the high beam is 9005. Factory LED-equipped trucks do not use those conventional replaceable headlight bulbs.
What size headlight bulb does a 2019–2024 Ram 3500 use?
For the factory halogen reflector configuration, use H11 low beam and 9005 high beam. Factory LED configurations use integrated LED headlight assemblies.
What fog-light bulb does a 2019–2024 Ram 2500/3500 use?
For the replaceable factory halogen fog-light configuration covered by this guide, use H11. Some trucks have factory LED fog lights or no fog lights, so verify the configuration before ordering.
Does my Ram use H11 or 9005 headlights?
A factory-halogen truck uses both: H11 for the low beam and 9005 for the high beam.
Can I install LED bulbs if my truck has factory LED headlights?
Not as an H11/9005 bulb swap. Factory LED headlight assemblies do not use the same conventional replaceable halogen bulbs. Do not order the H11/9005 kits for a factory LED headlight configuration.
Do I need CANBUS decoders?
Use the vehicle-specific Fuzed LED kit recommended for your selected configuration. The applications Fuzed has tested for this guide are intended to be plug-and-play, but aftermarket housings, altered wiring and different factory lighting packages can change electrical compatibility.
Will these bulbs fit a Ram 1500?
This page is optimized specifically for 2019–2024 Ram 2500 and Ram 3500. Ram 1500 and Ram Classic lighting configurations should be checked with their own vehicle-specific guide rather than assuming the HD-truck chart applies.
What if my truck has aftermarket headlights?
Use the bulb size specified by the aftermarket headlight manufacturer. Factory bulb charts should not be assumed to apply to a replacement headlight housing.
Need Help Finding the Correct Ram Bulb?
If you are still unsure, do not guess. Use the vehicle finder above or contact Fuzed LED with your:
- Year
- Model — Ram 2500 or 3500
- Trim
- Photo of the headlight/fog-light assembly
- Existing bulb number, if accessible
We can help identify the correct application before you order.
9 comments
Thomas
I’m glad every bulb EXCEPT for the one I need to know is here. Can’t find the correct license plate lights on any forum. Most list 194 which is incorrect
Michael - FUZED LED
Hey Chad! The clearance cab lights on this particular model ram are a factory LED sealed unit. You cannot replace the bulbs in them unfortunately.
Michael - FUZED LED
Hey Benjamin! You do not need any canbus decoders for the headlights or fog lights on this particular model truck!
BENJAMIN
IM BUY LOW BEAMS, HIGH BEAMS & FOG LED LIGHTS FOR MY 2019 DODE RAM 1500 BIG HORN MY FOGS ARE VERTICLE WILL I NEED A CANBUS FOR MY LOW BEAMS AND FOGS
Chad
Hello just wondering what the clearance bulbs are ty
Bob
Do they fit the eye ball version
Q
size for 2021 Ram 4500 cummins? tow truck
Michael
Hey James! Yes they will fit your 2021 Ram 2500 Big horn edition.
James Clausen
I have a 2021 Ram 2500 big horn that takes H11 low beams and 9005 high beams. Will yours fit my truck? I do not have a halogen housing eyeball