Same size, any name4L, XDV48 and MXV4 all describe the same 1/2″ (13mm) wide section. If your old belt says XDV48, a 4L or MXV4 belt of the same length will fit the same pulleys.
Reading the codeThe number after the section is the outside length in tenths of an inch. 4L360 is a 4L belt 36 inches long, and an XDV48 or MXV4 belt marked 360 is the same length.
Light or heavy duty?4L and XDV48 belts suit light-duty drives. Choose MXV4 heavy-duty belts for ride-on mower decks, clutched drives and machines that work hard, as they last longer under load.