Adding Bed Lights?
ML3Z-14A411-F Wire Assembly Jumper 1
ML3Z-14A411-D Wire Assembly Jumper 1
FL3Z-9C888-B OEM Ford Bed Cargo Lamp Light Switch 1
JL3Z-13A756-A Cargo Lamp 2
This thread on another forum was a great help in getting the correct parts:
https://www.f150gen14.com/forum/thre...-lights.24141/
It can be done, just takes a little work.
Everyone with a 2024/25 that posted in that thread also had to replace the RL3Z-13A409(?) wire assembly. This is the main wire loom that runs across the back (behind the rear bumper) that the drivers side and passenger side jumper wires plug in to for the bed utility/cargo lights. Unless you ordered the 'bed utility' package from the factory, the main wire loom RL3Z-13A409(?) does not have the female plug receptors for the jumper wires on each side. The reason I am using the (?) is because that part number is different on XL, XLT, Tremor Lariat, etc. depending on other factory equipment. The replacement wire assembly (?) that you will need is also different depending on your original factory equipment.
For example:
I have a 2024 F150 XLT Crew Cab 5.0L. My factory cable is RL3Z-409B ......... (this cable has no female receptors plugs for jumper wires going to the lights)
My replacement cable that I ordered is RL3Z-A409E ..............(this cable has the drivers side and passenger side female receptor plugs for the wire jumpers going to the lights)
NOTE: The "B" and "E" designations for me will not be the same for anyone else unless their truck is configured just like mine. The best way to determine yours IMO is to go to a ford dealer, tascaparts.com, or fairwayford.com etc and search parts using your VIN to find your RL3Z-13A409 and see what the designation is (A,B,J,K etc.). Then you can find a truck with the same or similar designation that also has a bed utility package option and then use that VIN to perform the same search. Also, several people have posted their findings in the f150gen14.com thread above. You can scan through that thread and possibly determine what you need. I did both before ordering parts. The parts listed above (2 jumpers, the switch, and lights) will be the same for everyone.
Sorry...... just trying to point out that the primary wire loom that has to be replaced is not listed in your parts list. This is also the most expensive part of the bed light upgrade and costs more than the other parts combined. Discounted at Fairwayford.com it was about $174 and with shipping etc the total was about $185.
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The OEM bed utility lighting is tied into other lighting functions of the truck. So when you hit your key to lock your truck, your courtesy lights in the cab, bed lights (if on), and other related lights all turn off. The OEM lights also turn off after a given period of time. etc. etc. etc.
This kit gives you the OEM look with a OEM style switch. They turn on/off with the switch only. Certainly a very good and worthwhile option but does not function the same as the OEM bed lighting install being discussed and the 15 page thread referenced above.
The OEM bed utility lighting is tied into other lighting functions of the truck. So when you hit your key to lock your truck, your courtesy lights in the cab, bed lights (if on), and other related lights all turn off. The OEM lights also turn off after a given period of time. etc. etc. etc.
This kit gives you the OEM look with a OEM style switch. They turn on/off with the switch only. Certainly a very good and worthwhile option but does not function the same as the OEM bed lighting install being discussed and the 15 page thread referenced above.
I personally do not want or need all those other functions, I needed lights to only turn on when I need them so this kit was perfect and the lights and switch fit perfect in factory location. Just providing an alternative to all the other nonsense involved with going factory route,
Everyone with a 2024/25 that posted in that thread also had to replace the RL3Z-13A409(?) wire assembly. This is the main wire loom that runs across the back (behind the rear bumper) that the drivers side and passenger side jumper wires plug in to for the bed utility/cargo lights. Unless you ordered the 'bed utility' package from the factory, the main wire loom RL3Z-13A409(?) does not have the female plug receptors for the jumper wires on each side. The reason I am using the (?) is because that part number is different on XL, XLT, Tremor Lariat, etc. depending on other factory equipment. The replacement wire assembly (?) that you will need is also different depending on your original factory equipment.
For example:
I have a 2024 F150 XLT Crew Cab 5.0L. My factory cable is RL3Z-409B ......... (this cable has no female receptors plugs for jumper wires going to the lights)
My replacement cable that I ordered is RL3Z-A409E ..............(this cable has the drivers side and passenger side female receptor plugs for the wire jumpers going to the lights)
NOTE: The "B" and "E" designations for me will not be the same for anyone else unless their truck is configured just like mine. The best way to determine yours IMO is to go to a ford dealer, tascaparts.com, or fairwayford.com etc and search parts using your VIN to find your RL3Z-13A409 and see what the designation is (A,B,J,K etc.). Then you can find a truck with the same or similar designation that also has a bed utility package option and then use that VIN to perform the same search. Also, several people have posted their findings in the f150gen14.com thread above. You can scan through that thread and possibly determine what you need. I did both before ordering parts. The parts listed above (2 jumpers, the switch, and lights) will be the same for everyone.
Sorry...... just trying to point out that the primary wire loom that has to be replaced is not listed in your parts list. This is also the most expensive part of the bed light upgrade and costs more than the other parts combined. Discounted at Fairwayford.com it was about $174 and with shipping etc the total was about $185.












