754-05021 Lawn Tractors Drive Belt 1/2" x 100" with 42 inch Mower Decks Fits for MTD Cub Ct Craftsman 754-05021 954-05021 754-05021A 954-05021 XT1-LT42 and XT2-LX42

What It Is

This is a replacement drive belt for select Craftsman, MTD, Cub Cadet, and Troy-Bilt lawn tractors with 42-inch mower decks. It connects the engine pulley to the transmission, enabling forward/reverse movement.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: This belt is designed for 42-inch mower decks only. Measure your deck width if unsure.
• Model numbers: Confirmed fits for Craftsman XT1-LT42 and XT2-LX42. Also fits MTD, Cub Cadet, and Troy-Bilt tractors using OEM part numbers 754-05021, 954-05021, 754-05021A, or 954-05021.
• Belt dimensions: 1/2 inch wide x 100 inches long. Measure your old belt’s length (lay it flat, measure end-to-end) and width to confirm.
• OEM vs aftermarket: This is a non-OEM replacement. Check your owner’s manual for the exact OEM part number—cross-reference with the numbers listed above.

Key Things to Know

• Quality: At $17.99, this is a budget belt. Reviews (4.4/5) are positive but based on only 4 ratings—long-term durability is unproven.
• Installation difficulty: Moderate. You’ll need to remove the mower deck and possibly a pulley guard. Have a wrench and a belt installation tool (or a pry bar) handy.
• Common gotchas: The belt may be slightly tighter than OEM; if it squeals or slips, double-check routing and tension. Also, this is a drive belt, not a deck belt—don’t confuse the two.
• Warranty: No mention of warranty, so treat it as a disposable part.

Should You Buy It

Buy this if you need a quick, cheap replacement for a 42-inch deck tractor listed above and you’re comfortable with basic DIY installation. Skip it if you want OEM durability or a belt with a warranty—spend more for a genuine Craftsman or Stens belt.