754-05040 954-05040 Drive Belt for MTD Troy Bilt Pony TB30 TB30R 36T 42 42T 42X TB42 TB42T Lawn Mower 754-0241 954-0241

What It Is

This is a replacement drive belt for MTD-branded lawn tractors, specifically the Troy-Bilt Pony and TB series (TB30, TB30R, TB42, TB42T, and variants like 36T, 42, 42X). It transfers power from the engine pulley to the transmission, enabling forward/reverse movement.

Fitment & Compatibility

Check before buying:

• Deck size: Fits 30" and 42" cutting decks (models with “36T” or “42” in the name).
• Model numbers: Troy-Bilt Pony, TB30, TB30R, TB42, TB42T, 42X, and MTD equivalents.
• OEM cross-reference: Replaces MTD 754-0241, 954-0241, 754-05040, and 954-05040. Aftermarket belt, not OEM.
• Measurements: Belt length is approx. 94.5" (outside circumference) and 1/2" width. Verify your old belt’s length and width before ordering.
• Pulley system: Works with standard engine-to-transmission pulley setups; not for blade drive (deck) belts.

Key Things to Know

• Quality: Aftermarket belt, but user-rated 5/5. Expect adequate lifespan for residential use; may wear faster than OEM under heavy load.
• Installation: Moderate difficulty—requires removing deck or belt guards. Use a belt routing diagram (check manual or online) to avoid misrouting.
• Common gotcha: Many Pony/TB models share the same belt, but verify your exact model number on the mower’s ID tag (under seat or on frame). The “T” in TB42T indicates a different transmission—belt still fits, but double-check.
• No tensioner adjustment: Belt tension is fixed by idler pulley; ensure belt is tight after installation to prevent slipping.

Should You Buy It

If you have a Troy-Bilt Pony or TB series with a 30" or 42" deck and need a budget-friendly replacement for the drive belt, this is a solid pick. It’s not OEM, but for the price and positive reviews, it works well for regular mowing. Avoid if you need a deck belt or if your mower uses a different belt length (e.g., 46" or 50" deck).