What nut (i.e. size and thread and type) do I need for the power steering pump pulley?
I need a replacement power steering pump nut for the power steering pump
pulley to stay attached. Mine fell off and it won't work without it. I need the
exact part number and where I can buy it for answering the question.
Hmmm...the pulley and shaft are splined for the torque requirements, using the M12 x 1.2mm x 19mm drive locknut only to hold in place laterally. So ANY 12x1.25 will work; just adda washer to mate against the pulley nicely. The OE with built-in waher is available for about $8 from Dorman...or less from a good hardware store. (Note: 19mm=3/4", but a larger drive would be fine.)
I found an extra in the garage. Send me $5 and I'll mail it to ya. Ern