The 2318 means it's 2318 mm or 91.26 in. Often you won't find an exact replacement. I'm using a Gatorback which is 2325 (91.54 in.)
I'd guess the manufacturers do this so the part can fit multiple, but close, applications.
Yes my translater is bas but my english is mor bad....
My trailblazer is a Short wheel base=two rows of seats.
But on my truck ti's a GM 75125207 6PK2318 DAYCO.
I cant find the same on the Net.
Do you know some one like mine?
I read that"Gatorback which is 2325 (91.54 in.)" is an adaptable
The Gatorback 2325 works fine on my short wheelbase 03 Envoy. The belt tensioner allows some variation in belt lengths. If you enter your vehicle information at RockAuto Auto Parts (as suggested by seanpooh) they will list belts that fit. Be sure to look for the longer belt, usually with 915 in the part number. You probably will not find one that is an exact replacement. Rockauto ships internationally I believe.