Serp belt length

[1979jimmy350]

If i measure for my new serp belt how do i get the part number from the measurment? My setup is no where near stock so i would like to figure out what part number i need so i do not have to deal with the stupid parts person trying to look it up

 

[goldwing2000]

The last four digits represent the belt length.

XXX0585 means the belt is 58.5 inches long.

The two digits before that are the number of ribs.

X050585 is a 58.5" long belt with 5 ribs.

Any digits before that are just manufacturer identifiers.

Be sure to give yourself enough allowance for the belt to stretch.