Back in 2014, All parts for cruise control were available from the motor co, except for the actual cruise unit that was manufactured by Delphi. This was discontinued in 2005 and NOS was used thru 2007.

About the only way to find this unit today is USED. Lots on ebay, have to take your chance of it working.

if you want cruise, it can happen, it just takes time, persistance, a parts book to get all the part numbers and a willingness to run down every piece.

I put cruise on my 2004 police road king when I converted it to a road glide. It took about 8 weeks to find and receive everything. I have a little over $400 in parts and about 5 hours of my time in running stuff down and around $200 in labor from the install as I had no instructions.

if you want it, it can happen. I would start with eBay, or any used harley bike parts seller.

 

Here is a site. It is confusing as hell, I would call them.

https://www.harleycruisecontrol.com/

 

I found a NOS module on Ebay for my 02. I bought some new extra cables also.
This is just in case....

 

Always been a huge fan of CC but throttle lock is next best thing. I looked seriously at cruise for my Road King for a long time and were it EFI would be more reasonable, but carb threw a whole other financial wrench into the cost factor. I learned to live with the lock.

Look at Road King Classics as many of them do or did have cruise.

 

As other have said here you have to track down the parts and become familiar with your manual.

I completed the job for my 2007 street glide with no issues

 

I know this may sound like BS But years ago I had a 1976 Super Glide and it had a brass knurled screw on the underside of the throttle grip with a spring on it. It was designed so you could adjust throttle tension. I used to set it very firm and had no spring return to the throttle it was "set it and forget it" Maybe you can find an older throttle set up and use that it worked fine for me for years. Man things used to be a lot simpler back then.

 

 

Brass screw, now that's fancy and complicated!

From the cheap seat section ;-) :

 

I think you're talking about these (https://www.ebay.com/itm/NEW-REPLACE...hWTKGN&vxp=mtr), but I also added one of these (https://www.ebay.com/itm/MOTORCYCLE-...Bansnc&vxp=mtr) to make it easier to "engage/disengage" it with my thumb. Those, combined with one of these (https://www.ebay.com/itm/Universal-M....c100005.m1851) makes those long trips rather nice. Basically, anything that can hold the throttle in place, but still allow you to turn it in an emergency situation, will do, but I like that little aluminum arm with the start bolt under the switch housing/cover, as it looks good, almost like it came from the factory, and it works great.