6HP26 Identification

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The Trans Type and the first 4 digit of the Main Parts List are cast into the housing.
The Serial Number and the last 6 digit of the Main Parts List are stamped into casting.
OE transmissions also have a bar code label on the transmission housing. The Trans Part #, Serial Number, Letter Code, OE Part Number and OE Control Module Hardware # are listed on the label.
Example data from below:
Main Parts List = 1068 010 093
Serial Number =  0245688
Trans Part # = 1068 012 253
Letter Code = ZLB