Genuine Motorcraft/Ford - Exact Match. With the 7.3 motor, it's (seriously) a one-bolt setup that sits right on top and you don't have to remove any parts other than the belt. The part comes with a spare screw. There are many installation videos. It even has a built in clip to hold the tensioner "open" (after it's installed) so the belt can be threaded through. Release the clip to tighten the strap again.
Continental ContiPremiumContact 5 215/55 R17 94V summer
181 Review
Tires Continental ContiPremiumContact 6 275/35/R19 100Y RunFlat
18 Review
Efficiently Install & Remove Serpentine Belts With OEMTOOLS 25149 Tool: 13-18Mm Sockets, 1/2 & 3/8 Inch Drive, Long Handle For Optimal Leverage!
16 Review
Continental ContiSportContact 5 245/45 R17 95W Summer
72 Review