x354 john deere deck belt

I have a x354 john deere with a 42" deck, i am looking for a belt. The tag for the deck with the identification numbers is missing. the deck has 7 pulleys not counting the pto. the belt that came off it measures about 156" long. any help would be greatly appreciated!
 
The US/Canada versions call for a M174994 which according to JD is 144.8 inch long. the non US/Canada belt is shorter and a 2 belt system.
 
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