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2003-2005 Dodge RAM 2500 | Bulb Size Chart (Headlights, Fogs & More)

Last updated: September 12, 2023

In this guide, we'll help you quickly and easily find the replacement bulb size(s) you need for your 2003, 2004, and 2005 Dodge RAM 2500 (3rd Generation). From the headlights to the brake lights and everything in between.

This guide covers all sub-models and trims ((ST and SLT).

We organized all the bulbs into 5 lighting categories with easy-to-read charts. Select any of the categories below to jump right to the bulb size chart you're looking for:

Headlight Bulb Sizes
Fog Light Bulb Sizes
Brake & Tail Light Sizes
Turn Signal & Marker Bulb Sizes
All Other Bulb Sizes
Bulb Size Summary
Upgrading Your Bulbs (Popular!)
Installation Video
Owner Manuals
FAQ's

💡 TIP: Did you know that you can upgrade your headlight and fog light bulbs on your RAM 2500? Get up to 300% more light with LED or HID bulbs. Learn more below the size charts!

️⭐ NOTE: This guide only applies to 2003 to 2005 Dodge RAM 2500 with the original factory (OEM) assemblies. If you have aftermarket headlights, fog lights, brake lights, etc. you will need different bulb sizes as per the manufacturer's specifications.

🎯 ACCURACY: If you notice any inaccuracies or missing information, please let us know so we can update the guide. Providing accurate and complete information is important to us and our readers.

🚧 IMPORTANT: Automotive light bulbs are vehicle-specific! Follow this guide, review your owner's manual or contact your dealership to make sure you're buying the right bulbs to avoid fitment issues.

2003 to 2005 Dodge RAM 2500 - Headlight Bulb Sizes (Low & High Beam)

Position	Bulb	Type	Upgrade Avail.
Low + High Beams Headlights	9007	Halogen	Yes

Year Range 2003, 2004, and 2005.
Not sure about the difference between headlight low beams and high beams? Learn More.

2003 to 2005 Dodge RAM 2500 - Fog Light Bulb Sizes

Position	Bulb	Type	Upgrade Avail.
Fog Light	9006	Halogen	Yes

Year Range 2003, 2004, and 2005.

2003 to 2005 Dodge RAM 2500 - Brake & Tail Lights Bulb Sizes

Position	Bulb	Type	Upgrade Avail.
Brake Light (Rear)*	3057 or 1157	Halogen	Yes
Brake Light (High-Mounted)	912	Halogen	Yes
Reverse Light	3057 or 1157	Halogen	Yes
Tail Light	3057	Halogen	Yes

Year Range 2003, 2004, and 2005.

*Compare to original.

2003 to 2005 Dodge RAM 2500 - Turn Signal & Marker Bulb Sizes

Position	Bulb	Type	Upgrade Avail.
Turn Signal Bulb (Front)	3057	Halogen	Yes
Turn Signal Bulb (Rear)	3057	Halogen	Yes
Parking Light	4157	Halogen	Yes
Side Marker (Front)	3057	Halogen	Yes
Side Marker (Rear)	3157	Halogen	Yes
Roof Marker	194	Halogen	Yes

Year Range 2003, 2004, and 2005.

2003 to 2005 Dodge RAM 2500 - All Other Bulb Sizes

Position	Bulb	Type	Upgrade Avail.
Ash Tray Light	161	Halogen	Yes
Dome Light	579	Halogen	Yes
Engine Compt. Light	561	Halogen	Yes
Glove Box Light	194	Halogen	Yes
License Plate Light	168	Halogen	Yes
Map Light	2122	Halogen	Yes
Trunk / Cargo Area	194	Halogen	Yes

Year Range 2003, 2004, and 2005.

2003 to 2005 Dodge RAM 2500 LED/HID Bulb Size Summary

Year Range	2003, 2004, 2005
Low + High Beam Headlight	9007
Fog Lights	9006
Brake Light (Rear)*	3057 or 1157
Brake Light (High-Mounted)	912
Reverse Light*	3057 or 1157
Tail Light	3057
Turn Signal Bulb (Front)	3057
Turn Signal Bulb (Rear)	3057
Parking Light	4157
Side Marker (Front)	3057
Side Marker (Rear)	3157
Roof Marker	194
Ash Tray Light	161
Dome Light	579
Engine Compt. Light	194
Glove Box Light	168
Map Light	2122
Trunk / Cargo Area	194

All sub-models: (ST and SLT).

*Compare to original.

Upgrade Your Headlight Bulbs On Your 2003-2005 Dodge RAM 2500

Looking to improve the lights on your 2003-2005 Dodge RAM 2500 with better, brighter, and more durable lighting? At XenonPro.com, we developed LED and HID bulbs that fit right into your vehicle. With the same design and plugs, our bulbs are incredibly easy to install and will improve your light output by up to 300%.

Discover our award-winning lighting products backed by our Lifetime Warranty:

Check out some of our most popular guides:

Discover some related topics:

Headlight Bulb Replacement Video - 2003-2005 Dodge RAM 2500 (3rd Generation)

Check out this super helpful video on changing your headlight bulbs in your 2003 to 2005 Dodge RAM 2500.

The passenger side bulb is easy to access, however, the driver side is tricky. You can either change the bulb through the hood by A) moving the fuse relay box or B) pulling the headlamp assembly. We've found a video for each method so you can decide which is best for you.

Option A

You will need a 13mm socket and a Philips head screwdriver to gain access to the bulbs. We recommend wearing gloves to prevent getting fingerprints on the bulbs.

Option B

You will need a 10mm socket as well as a flat and Philips head screwdriver to gain access to the bulbs. We also recommend wearing gloves to prevent getting fingerprints on the bulbs.

Headlight Assembly Replacement Video - 2003-2005 Dodge RAM 2500 (3rd Generation)

Watch this video on changing your headlight assemblies on your 2003 to 2005 Dodge RAM 2500. You'll need the following tools:

Flat and Phillips screwdriver
10mm wrench
10mm socket with extension (or a drill)
Cloth or tape to help prevent scratching your bumper

Owner Manuals 2003 to 2005 Dodge RAM 2500

Need more information about bulb sizes, how to change the bulbs, or simply need the owner's manual? Find it below:

2003 Dodge RAM 2500 Owner's Manual (N/A)
2004 Dodge RAM 2500 Owner's Manual (N/A)
2005 Dodge RAM 2500 Owner's Manual

FAQ

Can this guide be applied to the 2004 Dodge RAM 2500?

Yes. This guide applies to all years from 2003 through 2005 RAM 2500 models and trims (ST and SLT).

What type of bulbs do you recommend for my 2003-2005 RAM 2500?

If you do a lot of nighttime driving or have difficulty seeing at night, we recommend upgrading from halogen to either LED or HID bulbs. They will produce more light and last longer than replacement bulbs.

Discover how you can put LED or HID bulbs in your factory headlights.

Can I change the bulbs on my 2003-2005 RAM 2500 myself?

Yes. Changing halogen bulbs is quite easy for the most part. We strongly advise finding How-To videos online for the specific bulb(s) you wish to change and consult the Owner's Manual for additional help.

I purchased aftermarket assemblies for my RAM 2500, can I use this guide?

No. Aftermarket assemblies typically use different bulb sizes. Consult with the assembly manufacturer for the right bulb size(s).

Sources:

Disclaimer: The information contained on this page is provided free of charge to our visitors. It was prepared to the best of our abilities and with all the information available to us at the time of writing. We reserve the right to change, remove or update any information contained on this page at any time and without notice to improve its accuracy. The most reliable method to determine the bulb size is by pulling your actual bulb(s) and reading the part number indicated directly on the bulb. The information compiled on this page comes with no guarantees or warranties.