The Morimoto LF291 XB LED fog-light pair is for the vertical factory fog-light position on 2013–2018 Ram 1500 trucks. It supplies 5500K white output through complete projector housings with a 9006 input. Some mounting holes need modification to 17 mm, and the correct resistor and splitter setup must be checked before installation.
Fitment and original equipment
- Ram 1500: 2013–2018 with matching vertical factory fog-light housings.
- Some models require the mounting hole to be modified to 17 mm, even when the original part number matches.
- Morimoto specifies resistors for proper function and identifies splitters and resistors for 2015-and-later applications. Confirm that the required hardware is included for your vehicle before ordering.
- OE comparison references: Mopar 68104821AC and 68104820AC. Horizontal fog-light housings use a different lamp set.
Specifications and contents
| Part number | LF291 |
|---|---|
| Quantity | Two Type Ram Vertical 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; required resistor/splitter configuration must match the vehicle |
| Optional accessory | Yellow Lamin-X film; separate option |
Before installation
Compare the vertical lamp shape and mounting hole before disassembly. Review any required 17 mm hole modification with the installer. Fit the appropriate resistor and splitter hardware for the vehicle, test both fog lights, and use the integrated height adjusters to set their aim after mounting.
Warranty
Morimoto 10-year limited warranty. Manufacturer terms and exclusions apply.
Product questions and answers
How do I choose between LF291 and LF290?
LF291 is the vertical fog-light set for the listed 2013–2018 Ram 1500 application. LF290 is the horizontal set. Compare the original lamp orientation, shape and mounting; the two sets are not interchangeable just because both list Ram trucks.
Will the original part number guarantee that the mounting hole fits?
No. Morimoto specifically notes that some models require the hole to be modified to 17 mm despite sharing the original part number. Compare the mounting before installation.
Do these need resistors or splitters?
Morimoto lists resistors as required for proper function and labels its splitter and resistor options for 2015-and-later trucks. Confirm the correct hardware and package contents for your vehicle before ordering; do not assume that connecting the lamp alone completes the installation.
Does 9006 mean these are replacement bulbs?
No. The 9006 male input identifies the connection on the complete LED projector fog-light assembly. LF291 supplies the housings as a pair, not a pair of loose 9006 bulbs.
Is the light output 2,400 lumens from each lamp?
No. The manufacturer specification is 1,200 raw lumens per lamp and 2,400 raw lumens for the pair. That raw output rating does not measure the installed beam at a particular road distance.
Can I leave the beam at its out-of-box setting?
Use the integrated height adjusters to check the final aim once the lamps are installed. The bumper, mounting and any required hole modification can affect their final position.
Are the standard lamps white or yellow?
The LF291 specification is 5500K white. Yellow Lamin-X film is an optional accessory; confirm it separately if that is the appearance you want.
