Genuine MTD 754-04188 — replacement V‑belt for 50 cm/127 cm cutting decks, smooth trapezoidal profile (section 4L), external length 4680 mm and nominal top width 12.7 mm — engineered to transfer power cleanly from the engine to the cutting deck with minimal slip.

This original MTD belt is commonly used on 50" (127 cm) zero‑turn and lawn‑tractor decks — for example, Cub Cadet FMZ 50 series machines (various 2008–2014 FMZ‑50 factory model codes) and Massey Ferguson / MF 50‑22 zero‑turns — double‑check your mower’s parts diagram or model tag to confirm fit.

Note: the 754‑04188 listing has been superseded to part number 954‑04188 in some parts systems; if your old belt shows the later number it’s the equivalent replacement.

If you need a straightforward, reliable deck belt to finish a repair, this original MTD belt matches the factory specifications and is sized to fit the pulleys and routing used on the models listed above. (This description includes power tool parts information to help identify the correct item.)