Upgrading your Ram 2500 3500’s headlights is one of the best ways to improve nighttime visibility and safety. The Lasfit Pro-DC Series is a custom-fit LED headlight replacement kit designed specifically for the 2019–2024 Ram 2500 and 3500.
In this guide, we’ll walk you step by step through replacing the low beam bulbs using a removed Ram headlight assembly.
Step-by-Step Installation Guide
Step 1：Locate the Low Beam Position
Put on gloves(included in package) and find the low beam mounting position on your headlight assembly.
Step 2：Remove the OEM Dust Cover
Grip the tab on the OEM dust cover and pull it outward firmly to remove it.
Step 3：Take Out the OEM Halogen Bulb
Find the factory halogen bulb, rotate it counterclockwise, and pull it out.
Step 4：Disconnect the OEM Bulb from the Wiring
Use one hand to press the clip and the other hand to pull the bulb connector away.
Step 5：Connect the New LED Bulb to the Power Harness
Align and insert the LED bulb connector into the factory wiring harness. There is no positive/negative polarity.
Step 6：Insert the LED Bulb into the Socket
Align the LED bulb tabs with the headlight socket and push the bulb straight in.
Found that the OEM headlight housing tabs are of different lengths.
The tabs on the LED bulb also vary in length.
Ensure that the LED bulb tabs align with the slots in the housing.
Step 7：Lock the Bulb in Place
Press down and rotate the bulb clockwise until it locks firmly into the socket.
Step 8：Confirm Proper Orientation
The LED chips should naturally sit at the 3 o’clock and 9 o’clock position, with the power wire pointing straight down at 6 o’clock. No adjustment is needed.
Step 9：Tuck the Wiring Inside
Carefully place the wiring and connectors inside the new dust cover.
We recommend securing the connector onto the bulb base. This prevents the wires from springing back and makes it easier to install the dust cover.
Step 10：Install the New Dust Cover
Make sure the markings and vent hole on the dust cover face downward, then press the dust cover firmly into the assembly.
Do You Need to Remove the Headlight Assembly on 2019–2024 Ram 2500 & 3500?
No, you don’t.
For the driver side, turn your steering wheel fully to the right to create more space between the wheel and the fender. Remove the fender screws with a screwdriver, and you’ll have enough room to access the headlight assembly from the fender area.
For the passenger side, simply repeat the process in the opposite direction.
2019–2024 Ram 2500 & 3500 Headlight Bulb Replacement Video Tutorial
Final Thoughts
With the Lasfit custom-design LED headlight bulbs, you’ll enjoy a brighter, clearer beam pattern, improved nighttime visibility, and a true plug-and-play installation—all without extra tools or modifications.
If you run into any issues during installation, feel free to leave a comment under this post—we’ll be happy to help you replace the LED headlight bulbs yourself.
Upgrade your Ram 2500/3500 Tradesman/Big Horn/Lone Star headlights today and experience the difference.
