I talked with my industrial bearing guy, Dale, at Motion Industries.
He contacted his counterpart on the Automotive side and they think they found the part number for the 65mm pulley that was on my A/C & PS Tensioner. It's listed as a Porsche part though, so....I'll get one, see if it fits and edit the post when it gets here.
*Edit: The 65mm "Porsche" pulley is the correct part for my car, same exact part number.
A/C & PS Tensioner Pulley (65mm OD):
[COLOR="Red"]Global Part #: 5320557100[/COLOR]
https://www.fcpeuro.com/products/clo...or-95510211921
https://www.autohausaz.com/pn/IN-95510211921
Plastic Dust Cap:
https://www.fcpeuro.com/products/bmw...er-11287835996
Alternator & Water Pump Tensioner Pulley (70mm OD):
[COLOR="red"]Global Part #: 5320342100[/COLOR]
OEM:
https://www.fcpeuro.com/products/bmw...li-11281440237
OEM:
https://www.autohausaz.com/pn/11281440237
Plastic Dust Cap:
https://www.fcpeuro.com/products/bmw...er-11287835996
A/C & PS Fixed Idler/Deflection Pulley (80mm OD) Center Hole:
BMW:
https://www.fcpeuro.com/products/bmw...m3-11287841531
(FCP's website prompted me to ask if I wanted the less expensive (Vaico) option, but it turned out to be the offset version. FCP Euro has a glitch on their side, so be advised.)
BMW:
https://www.autohausaz.com/pn/BM-11287841531
Plastic Dust Cap:
https://www.fcpeuro.com/products/bmw...ap-11287535867
A/C & PS Fixed Idler/Deflection Pulley (80mm OD) Offset Hole:
[COLOR="red"]Global Part #: 5320418100[/COLOR]
BMW:
https://www.fcpeuro.com/products/bmw...ey-11287841228
BMW:
https://www.autohausaz.com/pn/11287841228
OEM:
https://www.autohausaz.com/pn/11281738605
Plastic Dust Cap:
https://www.fcpeuro.com/products/bmw...ap-11281730349