The factory powdered metal crankshaft gears / sprockets has proven to be a weak link, the 2015-2020 further uses an even weaker/thinner design, failure of this gear results in severe damage to the valvetrain and cylinder heads. Protect your investment with this Heat Treated Billet steel gear from MMR. Direct replacement. Does not fit 2011-2014 5.0 Mustang GT - for 2011-2014 Use MMR part # 467891Learn More