1/2" x 91 1/2" Lawn Mower Deck Drive Belt Fits for Cub Cadet MTD 754-05027 954-05027 754-04142 954-04142 Simplicity 1726472 1703836

What It Is

This is a 1/2-inch wide, 91 1/2-inch long lawn mower deck drive belt that transfers power from the engine pulley to the mower blades. It’s designed for select Cub Cadet, MTD, and Simplicity riding mowers with 42- to 50-inch decks.

Fitment & Compatibility

What to check before buying:

• Measure your old belt: Lay it flat and measure end-to-end. Must be exactly 91.5 inches (not 92 or 90.5) and 1/2 inch wide. Even a slight difference can cause slipping or jamming.
• Cross-reference OEM part numbers: This belt replaces Cub Cadet/MTD 754-05027, 954-05027, 754-04142, 954-04142, and Simplicity 1726472, 1703836. Verify your machine’s manual or current belt part number.
• Deck size & model: Fits many Cub Cadet LT/LXT/GT series, MTD Yard Machines, and Simplicity Broadmoor/Regent models with a 42- or 46-inch deck (check your specific model number). Simplicity 4000/5000 series with 44-inch decks may also work.
• Aftermarket note: This is an aftermarket belt, not OEM Cub Cadet. It’s typically fine for most uses, but if you have a zero-turn or heavy commercial mower, OEM may last longer.

Key Things to Know

• Quality: Made from standard rubber/cord material, not Kevlar. Expect 1–3 seasons of residential use (mowing 1–2 acres weekly). Not for commercial duty.
• Installation difficulty: Easy for DIYers with a socket set. You’ll need to release deck tension by removing a spring or pulley bolt—watch for sharp edges.
• Common gotchas:
  • The 91.5-inch length must be exact—if your deck uses a 92-inch belt, this will be too short and may snap.
  • Check belt routing diagram under your deck or in manual; incorrect routing causes rapid wear.
  • Aftermarket belts can be slightly thicker—ensure pulleys are clean and not worn.

Should You Buy It

Buy this if you have a residential Cub Cadet, MTD, or Simplicity riding mower and your old belt measures 91.5 inches. It’s a budget-friendly replacement for the OEM part that works well for light-to-moderate use. Skip it if you need a commercial-grade belt or your deck requires a different length.