754-04249 754-04249A 954-04249 954-04249A LTACOOL Lawn Mower Traction Transmission (Lower) Belt 5/8" x 71" Compatible with MTD Pony 42T, 36T, 42X, TB42 7-Speed

What It Is

This is a replacement traction drive belt (5/8" x 71") for MTD-built lawn tractors with 7-speed transmissions. It transfers power from the engine to the transaxle, controlling forward/reverse movement—not the cutting deck.

Fitment & Compatibility

Critical checks before buying:

• Exact belt size: 5/8" wide x 71" long. Measure your old belt’s length (lay it flat, measure end-to-end) to confirm.
• Cross-references: Replaces OEM part numbers 754-04249, 754-04249A, 954-04249, 954-04249A.
• Common compatible mowers: MTD Pony 42T, 36T, 42X, TB42 with 7-speed transmission. Also fits many Yard Machines, Troy-Bilt, and Cub Cadet models using the same MTD drivetrain.
• Deck size doesn’t matter for this belt—it only drives the wheels, not the blades. Focus on transmission type (7-speed) and model series, not deck width.
• Check pulley condition: Worn or bent pulleys will shred a new belt quickly. Inspect for sharp edges or wobble before installing.

Key Things to Know

• Quality vs OEM: This LTACOOL belt is a budget-friendly aftermarket option. It’s slightly thinner than OEM MTD belts, so it may stretch faster or slip under heavy load (e.g., wet grass, slopes).
• Installation: Straightforward—release belt tension by removing the spring-loaded idler pulley. No special tools needed. Route diagram often printed on the mower frame or in the manual.
• Common gotcha: If your mower has a “shift-on-the-fly” 7-speed, this belt must be properly tensioned. Too loose = slipping/clunking; too tight = premature wear. Use the factory adjustment slot.
• Wear indicator: If the mower moves slowly or won’t move at all, the belt is likely glazed or stretched. Replace immediately to avoid damaging pulleys.

Should You Buy It

Buy this if you need a quick, affordable replacement for a worn traction belt on a standard MTD 7-speed lawn tractor and you’re comfortable with occasional re-tensioning. Skip it if you mow heavy terrain, want OEM longevity, or have a zero-turn or automatic transmission—this belt won’t fit those.