1951272 Pulley 1 Groove . Condition is New. 
Shipped with USPS Priority Mail Flat Rate Envelope.

D:0.669in / 17mm
OD:2.626in / 66.7mm
Belt Width:0.394in / 10mm
Thickness:0.857in / 21.77mm
Center of Rear Groove to Rear of Pulley:0.496in / 12.6mm
Pulley Grooves:1
Groove Type:V-Groove
Nut Recess Depth:0.22in / 5.6mm
Pulley Type:Solid
Application:Delco & Ford Alternators
Weight:0.75 lbs / 0.34 kg
Diagram(s):Diagram #9-14