Here is the Part number for the plug: FXE24HR11 i bought mine off ebay, $72 free shipping no tax. dealer wanted over $300 to change the plugs. no thanks.
for anyone needing to do their spark plugs and hesitant, it is an extremely easy DIY Job. only special tools needed are a long extension, and a 14mm Spark plug socket, or just a very deep well 14mm will work as well. i just used a very deep 14mm and used the coil packs to extract the old spark plugs out of their holes. the first two on each side can easily be gotten to by removing the intake tubes, but the back 2 on each side the throttle bodies need to come off. i just unbolted and pushed to the side. DO NOT UNHOOK ANY HOSES OR ELECTRICAL CONNECTIONS. this will mess with your idle and possibly require a trip to the dealer for reprogramming.
While you are in there, go ahead and clean those throttle bodies. i did mine at 75k, so they werent very bad, but if you never have you might as well while they are off. i used some Throttle body cleaner from the parts store and some microfibers.
I used a Degreaser from autozone, left my intake tubes off, bolted my throttle bodies back on and plugged both sides of the holes and any vaccum lines that were unhooked. after spraying it down, i used a pvc brush to agitate everything, then hosed it off with my hose sprayer. make sure all your plugs and coil packs are back on and connected and tightened down before doing this, you dont want water down there!
used https://www.walmart.com/ip/Meguiar-s-Ul ... 3=&veh=sem to restore the shine.
heres a Before

and After

