Here's a list of equivalents - note that some are very close but not exactly the same length, but reputedly all can be used. The slightly longer ones will need the tensioner run in to its limit, but do work (I currently have one on my Norge).
Bando Dayco Gates Gates Napa Goodyear Cadna Pix
4PK740 5040290 4PK740 K040292 25-K040292 4040290 290K4 291K4
If the auto parts shop wants to look it up using a car application, the belt is used in 94 Subaru Justy for alternator with no A/C.