OK. Tons of research on this over the last 1-2 days including contact with a very highly skilled and experienced Ford "inside-guy".
The correct HVAC (no digital read out, with HSW, heated/cooled seats) is NL3T-18C612-TB, but will likely be sold under PN NL3Z-19980-S. This appears to be a very low availability part.
The HVAC that failed to take writing goes by two PNs: ML3Z-19980-K and ML3T-18C612-DE. Again, this part with digital temp readout would NOT accept programming from Forscan. Suggest that you do NOT buy. That being said, there is a whole thread of F-150 owners at various trim levels who have had success with this PN (
https://www.f150gen14.com/forum/thr...vac-control-knobs-for-2023-f-150.14077/page-4). Note that they were not installing it to take advantage of HSW, per se, but just to bring back digital temp readout. I am not sure why they had success and we have not, or if the error we are encountering can be overcome with advanced programming tools other than Forscan.
The correct SCCM PN, I am less confident about. I am
pretty sure it is ML3Z-3F791-BB. What I can say confidently is that you should NOT order the clock spring only (ML3Z-14A664-B) as it seems MY23 Raptors almost all have missing pins on the back of the housing itself, and the whole assembly is needed.
No harness, replacement steering wheel, or additional wires are needed. Replacement steering wheel almost 100% not necessary, as most everyone who has disassembled has found that they already have the correct steering wheel with the heating element.
I think the best value is the boostedgreygoosedesigns kit with everything included. It also comes with detailed instructions. I see NO reason not to use this kit.
This is my current executive summary lol. Good luck. Happy to answer any questions I'm able to moving forward.