954-05040 Drive Belt Replaces 754-05040, 954-0241, 954-0241A, 754-0241, 754-0241A Upper Drive Belt, Fits MTD Troy-Bilt Craftsman Cub Cadet Lawn Tractor Mowers (5/8" x 35 1/4")

What It Is

This is an upper drive belt (5/8" wide x 35 1/4" long) that transfers power from the engine pulley to the transmission on select MTD, Troy-Bilt, Craftsman, and Cub Cadet lawn tractors. It’s used for propulsion, not the mower deck.

Fitment & Compatibility

Check these before buying:

• Measure your old belt: Must be 5/8" wide and 35 1/4" long (outside circumference). A 1/2" difference can cause slipping or poor tension.
• OEM cross-references: Replaces 954-05040, 754-05040, 954-0241, 954-0241A, 754-0241, 754-0241A. If your part number isn’t listed, it may not fit.
• Brand fit: Designed for MTD-built tractors (Troy-Bilt, Craftsman, Cub Cadet) with compatible deck sizes. Common on 42", 46", and 50" decks, but confirm your model.
• Verify your model number: Check under the seat or frame. This belt fits specific models, not all tractors from these brands. Search your model + “upper drive belt” to confirm.

Key Things to Know

• Quality: Aftermarket belt at a budget price. Expect 1-2 seasons of normal use. OEM belts (Cub Cadet branded) usually last longer but cost more.
• Installation: Moderate difficulty. You’ll need to remove the deck, release tension from the idler pulley, and route around pulleys. A belt diagram (often printed on the mower deck or in the manual) is essential.
• Common gotcha: This is the upper drive belt, not the deck belt. Don’t confuse them. The deck belt is shorter and drives the blades.
• Tension check: After installing, ensure the belt is snug but not overly tight. A loose belt slips; too tight wears pulleys and bearings.

Should You Buy It

Buy this if you need a quick, affordable replacement for a worn upper drive belt on a compatible MTD-built tractor and you’re comfortable with basic mechanical work. Skip it if you want OEM longevity or have a high-use commercial mower—spend more on a factory belt.