I bought this believeing the Pump motor was the problem on my 86' GN-- Wrong! The list price was $788.24.. GM part # 18038505.. I had my buddy in a local GM parts dept locate it. He had a hard time - but, he found it and I paid $410.. A good price.. I just do not need it. I will sell it for what I paid.. Attached photos - still in the box with the receipt.. I can be contacted at buickgetreal@verizon.net Larry