Replaces: ALLEN'S AUTO PARTS _ GATA48 ALLIS CHALMERS _ 518465 ALLIS CHALMERS _ 70518465 BESTORQ - A48 BOSTWICK-BRAUN _ 382884 BRAMEC CORP _ 17927 CAMPBELL-HAUSFELD _ BTO0204 D&D POWER DRIVE - A48 DAYCO _ AP48 FAMILY FARM & HOME _ 886705 GATES - A48 GSI/GRAIN SYSTEMS, INC _ MHC00729 ORGILL _ 245-2332 ORGILL _ 2452332 PIX NORTH AMERICA - A48 / 4L500 ROLAIR - BT4L500 TSC CANADA _ 62048 1/2 X 50 in OC Varibelt VX V-belts exceed USA RMA published ratings levels. Varibelt VX V-belts are manufactured to the same RMA/ISO Standards as all other major USA Manufacturer's belts of the same type. They are dimensionally and functionally equivalent to V-belts produced by other USA manufacturers.