You can go to HPIs website, they have exploded views of each model, and part numbers. The air filter should be replaced from the stock version anyway with a better air filter assembly for a small block, something like a motor saver. The remote needs to be matched with the receiver, if yu are using the stock old rtr receiver it was a 27mhz am radio, so you might want to consider upgrading to a better radio and receiver anyway. Te clutch is more engine specific than model specific, when I was running the stock 15 fe, I replaced my stock clutch wih an mip clutch. The rtr three used dog bones, those should still be easy to find, or you can upgrade those to CVDs.