"I thought this was some kind of an "aftermarket" item"
Nope, it's the redesigned Ford OEM harmonic damper(was "single mode" now "dual mode" which reduces crank bending and presumably crank whip) used on current 2nd generation 2.5L Duratecs in the Euro Mondeo. Ford PN and everything. I told them it was a geniune upgraded Ford part, they said OK.