The 2019-2024 RAM 2500 and RAM 3500 came with either factory halogen or factory LED tail lights, depending on trim and equipment package. Many owners with halogen trucks want the OEM style LED tail lights for the updated look.
Can you install OEM style LED tail lights on a 2019-2024 RAM 2500 or 3500 that came with halogen tail lights? Yes. But swapping the tail lights alone is not enough. The LED tail lights bolt on, but the wiring is different. A conversion harness adapts the factory wiring so the LED tail lights work without cutting or splicing.
TAILLIGHTS NOT INCLUDED. The kit is one left and one right conversion harness only.
Quick Answer
- Halogen and LED tail lights on these trucks use different wiring.
- A plug and play harness connects the factory halogen wiring to OEM style LED tail lights.
- It fits 2019-2024 RAM 2500 and 3500 trucks that came with factory halogen tail lights only.
- It does not fit the RAM 1500 or the 2025+ facelift tail lights.
- KVS sells this harness: 2019-2024 Ram 2500 3500 Taillight Conversion Harness Halogen to LED.
Why Aren't LED Tail Lights Plug and Play?
The LED tail lights mount to the truck, but the electrical systems are different. Factory halogen and factory LED tail lights use different wiring layouts. Without the right harness, the LED tail lights are not designed to work on the halogen wiring.
For a general explanation, see Can I Upgrade My Factory Halogen Taillights to OEM LED Taillights?
What the Conversion Harness Does
The harness connects the factory halogen wiring to the OEM style LED tail lights. It is designed to:
- Adapt the factory connectors
- Correct the wiring layout
- Keep the factory wiring intact
- Remove the need for cutting and splicing
Because nothing is cut, the original wiring stays untouched.
Only for Factory Halogen Trucks
Check your truck's original tail lights before you order. This harness is only for 2019-2024 RAM 2500 and RAM 3500 trucks that came with factory halogen tail lights.
It does not fit:
- Trucks that came with factory LED tail lights
- RAM 1500 models
- 2025+ facelift tail lights
- Aftermarket tail lights with non OEM pinouts
Have a 2019-2024 RAM 1500? That truck uses a different harness. See the 2019-2024 RAM 1500 Halogen to LED Tail Light Guide.
Tail Light Compatibility
This harness is for 2019-2024 RAM 2500 and 3500 OEM style LED tail lights. If you are buying replacement tail lights, check that they use OEM connector pinouts. Aftermarket tail lights with different wiring are not compatible.
The redesigned 2025+ facelift tail lights use a different configuration and do not work with this harness.
What This Harness Fits
- 2019, 2020, 2021, 2022, 2023 and 2024 RAM 2500
- 2019, 2020, 2021, 2022, 2023 and 2024 RAM 3500
It is for trucks that came with factory halogen tail lights and are being converted to OEM style LED tail lights. Check the product page for full fitment details.
Before You Order
- Your truck is a 2019-2024 RAM 2500 or RAM 3500.
- Your truck came with factory halogen tail lights.
- You are installing 2019-2024 OEM style LED tail lights.
- Your replacement tail lights use OEM connector pinouts.
- You are not installing the 2025+ facelift tail lights.
Not sure? Contact KVS before you order. You can also browse all RAM parts.
Frequently Asked Questions
Do I need to cut or splice any wires?
No. The harness plugs into the factory wiring.
Will this work on trucks that already have factory LED tail lights?
No. It is only for trucks that came with factory halogen tail lights.
Will this fit a RAM 1500?
No. It is only for the 2019-2024 RAM 2500 and RAM 3500. RAM 1500 owners need the RAM 1500 harness.
Can I install 2025 or newer facelift tail lights?
No. The 2025+ facelift tail lights use a different configuration and are not compatible with this harness.
Are the tail lights included?
No. The kit includes one left and one right conversion harness. TAILLIGHTS NOT INCLUDED. The LED tail lights are sold separately.
Summary
Halogen and LED tail lights on the 2019-2024 RAM 2500 and 3500 use different wiring. A vehicle specific plug and play harness adapts the connections and keeps the factory wiring intact. Confirm your truck came with halogen tail lights, then get the RAM 2500 3500 Taillight Conversion Harness. TAILLIGHTS NOT INCLUDED.
