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Identifying GM Fan

Guest ZenMaster

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Guest ZenMaster


I would really appreciate some help in finding out what the two 7 blade fans I have were originally installed on and what years these fans were used by General Motors.. They have the following numbers:

1) 3947772 and 91408L79

2)3947772 and 914807F74

If I understand correctly, the 914 numbers have the date codes but I am unsure how to decipher them. Can you help with this also?

Thank you in advance for your time and expertise. It is greatly appreciated.


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