My 00 7.3 got 2 injectors, valve cover gaskets, injector wiring, glow plugs and a fuel pump at 176k
Dads 06 6.0 got 2 injectors, glow plugs, glow plug harnesses and glow plug controller at 126k
You'd figure 6.0 parts are more expensive but motorcraft 7.3 injectors are around $50 more each