954-05040 Drive Belt Replace 954-0241A Upper Drive Belt for Troy Bilt Craftsman MTD Cub Cadet Yard Machines Lawn Mower/Tractor 754-0241 754-0241A 954-0241 754-05040 CMXGZAM501087 (5/8"x35.25")

What It Is

This is the upper drive belt (5/8" x 35.25") that transfers power from the engine pulley to the transmission on select lawn tractors. It’s used on Troy-Bilt, Craftsman, MTD, Cub Cadet, and Yard Machines models with MTD-based chassis—typically 42-inch decks or smaller.

Fitment & Compatibility

Before buying, confirm these three things:

• Measure your old belt: This belt is 5/8" wide and 35.25" long. If your current belt measures differently (e.g., 1/2" wide or 36" long), it won’t fit.
• Check OEM part numbers: This replaces OEM numbers 954-0241A, 754-0241, 754-0241A, 954-0241, 754-05040, and CMXGZAM501087. Cross-reference your mower’s manual or the old belt’s part number.
• Verify deck size and model series: Fits most MTD-built tractors with 42" and smaller decks. Common models include Troy-Bilt TB30, Craftsman T110/T120, Cub Cadet LTX1040, and Yard Machines 11A-series. Not for zero-turn or older MTD 38" decks with different routing.

Pro tip: Look up your mower’s model number (stamped under seat or on frame) on the manufacturer’s parts site—input “954-05040” to confirm.

Key Things to Know

• Quality: Aftermarket belt at this price is adequate for residential use. Expect 1-3 seasons with light mowing. Not reinforced for heavy commercial duty.
• Installation difficulty: Moderate. You’ll need to remove the deck or at least loosen the tensioner pulley. A belt routing diagram helps—check your manual or search online for your model.
• Common gotcha: This is the upper drive belt, not the deck belt. Many owners confuse them. The deck belt is wider (usually 1/2" x 92-96") and drives the blades. Double-check you’re replacing the transmission belt.
• Fitment note: Some models use a spring-loaded tensioner. If your mower has a manual belt tension adjustment, ensure the belt length matches exactly—too short and it won’t reach; too long and it slips.

Should You Buy It

If you need a budget-friendly replacement for the upper drive belt on a residential MTD-based lawn tractor (42" deck or smaller) and you’ve confirmed the 5/8" x 35.25" size and OEM number match, this is a solid, low-cost option. Not for heavy-duty or commercial mowers—buy an OEM or Kevlar-reinforced belt if you mow frequently or over rough terrain.