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Discussion Starter · #1 ·
Came across this in a SL350 Parts book that explains the Honda part number system clearly using part number 17500-312-030-CM
17500 is Function and Component number meaning what the basic part is. This number is used for all the same type part, in this case "Fuel Tank" so all fuel tanks should start as 17500
312 is Model code number meaning which model the part was designed for. Some parts used on later models were designed for earlier ones.
03 is modification designation. All parts started as 00 and modifications are noted by the number change
0 is subcontractor designation
CM is Color Code
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