Description
The Morimoto X3B LED Third Brake Light is a premium lighting upgrade designed specifically for 2019+ Ram 1500 trucks. It replaces the factory third brake light with a modern, high-performance unit that enhances style, visibility, and bed utility. Combining aggressive design with OEM-level fitment, the X3B is built for enthusiasts who want a clean, functional, and upgraded rear lighting solution without compromise.
This is a direct-fit, plug-and-play replacement that reuses factory mounting points and connects to the stock wiring harness with no modifications required.
Style Upgrade
The X3B transforms the outdated factory third brake light design into a modern, performance-inspired setup. It features bold 3D red brake light optics paired with a sleek piano-black polycarbonate housing. Clear optical sections add a refined touch while maintaining a factory-integrated appearance.
The result is a clean, aggressive rear-end upgrade that matches the styling of modern lighting systems found on today’s trucks.
Brake Light Performance
The braking system uses four precision-engineered optical-grade polycarbonate lenses combined with high-output 3W LEDs. This creates a bright, highly visible brake signal designed for both daytime and nighttime driving conditions.
Optional F1-style rapid flash functionality is available for added visibility and performance styling (plug-and-play module sold separately under SKU X3B01).
Bed Lighting Functionality
Unlike factory units, the X3B is engineered to improve real-world usability. Integrated rail-style optics distribute white LED light evenly across the truck bed.
This design eliminates dark spots and significantly improves nighttime visibility, making loading and unloading cargo much easier and safer.
Installation
Installation is fully plug-and-play with no cutting or wiring modifications required.
The X3B uses:
- Factory mounting points
- OEM-style plug-and-play wiring connection
- Direct replacement fitment design
What’s Included
- 1x Morimoto X3B Third Brake Light (X3B65)
- 1x Adapter Harness
- 1x Spare Foam Gasket
- 4x Rubber Washers
- Optional: Plug and Play Rapid Flash Module (X3B01)
Specifications
- Input: Mopar Multi-Pin OEM
- Housing: Piano Black Polycarbonate
- Lens: UV-Resistant Clear Polycarbonate
- Bed Light Output: White (3W LEDs)
Fitment
- Ram 1500 2019+
- OEM LED Third Brake Light Trucks: Not Compatible
- Trucks with Camera in Third Brake Light: Not Compatible
- Ram Classic: Not Compatible (Use SKU X3B30 instead)
Replaces Mopar Part Numbers
20789679, 20789680, 25867785, 25867786, 20936420, 20789706, 15849088, 15875917, 15237568, 15237578, 20832116, 20832118, 20909411, 20909412, 19371153, 19371151
Warranty Information
This product includes a Five (5) Year limited warranty provided and serviced by Morimoto. Coverage applies to manufacturing defects only and does not include damage caused by modification, alteration, or misuse. Any installation-related concerns should be documented with photo or video evidence before removal of the product.
Note
This assembly was developed for compatibility with North American vehicles. Morimoto does not guarantee compatibility with trucks outside of North America.
