Ford part# XF2Z-14B022-AA retail $12.91 ea. Use them to terminate the side impact air bag plugs under the seats. Also make sure you transfer the harness from the bottom of the seat over to the new seat you won't get the DTC C1981 Drivers Seat Track Position Fault. If you don't connect the seat belt sensor you will get DTC B2692. If you don't connect that yellow plug (side airbag terminator), you will get DTC B2295 and a LFC 23.
If you don't connect the OCS Module, you will get DTC B2290 and LFC 16. You get the same indication if you don't connect the bladder. The OCS Module is riveted into the seat rail. You will need to drill out the rivet to remove this module. The bladder takes some work to remove but is fairly obvious, you just need to remove several parts to get to it. The passengers airbag will always be active in this configuration, but you aren't going to have any DCTs.