The Morimoto LF290 XB LED fog-light pair replaces the matching horizontal factory fog lights on the listed Ram trucks. Its applications include 2009–2012 Ram 1500 and 2010–2018 Ram 2500HD/3500HD. The 5500K white projector assemblies use a 9006 input; confirm the required resistor and splitter hardware for the truck.
Fitment and original equipment
- Dodge/Ram 1500: 2009–2012 with matching horizontal factory fog lights.
- Dodge/Ram 2500HD and 3500HD: 2010–2018 with matching horizontal factory fog lights.
- Vertical fog-light housings use a different assembly. Match Mopar references 55372735AB, 55372734AB, 55372735AA and 55372734AA with the installed lamp and connector.
- For 2015-and-later HD trucks, confirm the required resistor and splitter setup and package contents before ordering.
Specifications and contents
| Part number | LF290 |
|---|---|
| Quantity | Two Type Ram Horizontal fog-light assemblies (one pair) |
| Colour temperature | 5500K white |
| Manufacturer-rated output | 1,200 raw lumens per lamp; 2,400 raw lumens per pair |
| Input | 9006 male |
| Housing / lens | Powder-coated aluminium / UV-resistant polycarbonate |
| Wiring and hardware | Plug-and-play harness; confirm the vehicle-specific resistor/splitter configuration |
| Optional accessory | Yellow Lamin-X film; separate option |
Before installation
Compare the horizontal lamp shape, mounting points and 9006 connection before disassembly. Confirm the electrical hardware required for the exact truck, especially 2015-and-later HD applications. Test the lamps with the correct hardware and use the integrated height adjusters to set the fog-light aim after fitting.
Warranty
Morimoto 10-year limited warranty. Manufacturer terms and exclusions apply.
Product questions and answers
Does LF290 fit every Ram model from 2009 onward?
No. This set is for matching horizontal fog-light housings. The listed ranges are 2009–2012 Ram 1500 and 2010–2018 Ram 2500HD/3500HD; a Ram name or similar year does not establish the correct fog-light position.
What is different about the LF291 set?
LF291 uses the vertical fog-light housing for its listed Ram 1500 application. LF290 uses the horizontal housing. Choose by the vehicle application and actual lamp orientation rather than the shared 9006 input.
What hardware should I check on a 2015-or-later HD truck?
Confirm the correct splitter and resistor configuration and that all required pieces are supplied for your installation. Morimoto calls out these electrical components in the LF290 product options; a base lamp connection should not be treated as the complete installation.
Is the 2,400-lumen figure per lamp?
No. Morimoto specifies 1,200 raw lumens per lamp, giving 2,400 raw lumens for the pair. Raw output is a component rating, not a guarantee of the light level at a particular place on the road.
Are these loose LED bulbs for my original fog lights?
No. LF290 is a pair of complete projector fog-light assemblies with 9006 male inputs. The original matching light housings are replaced.
Can I use the original lamp references to check the set?
Compare Mopar 55372735AB, 55372734AB, 55372735AA or 55372734AA with the original lamp, then verify the horizontal housing, mounting and connector. A reference match is one check, not a substitute for the full application.
Do the fog lights need aiming after installation?
Yes. The housings have integrated height adjusters. Check the final fog-light aim after the lamps and required wiring hardware are installed.
