TonGass 42" Lawn Mower Deck Belt Compatible with MTD Troy Bilt Mower Replaces Part Number 954-04060C 954-04060 954-04060B 754-04060, Replacement Deck Drive Belt Fits Cub Cadet LT1042 LTX1040 LTX1042

What It Is

This is an aftermarket 42-inch lawn mower deck belt designed to transfer power from the engine pulley to the spindle blades on select MTD, Troy-Bilt, and Cub Cadet riders with a 42-inch cutting deck. It replaces OEM part numbers 954-04060C, 954-04060, 954-04060B, and 754-04060.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch deck and that the existing belt measures 1/2-inch wide by 92.5 inches long (common spec for this replacement). This belt fits specific Cub Cadet models including LT1042, LTX1040, and LTX1042, plus many MTD and Troy-Bilt riders from the early 2000s to mid-2010s. It will not fit 46-inch or 50-inch decks. Check your owner’s manual or the old belt’s part number to verify exact match—aftermarket belts can vary slightly in length, which may affect tension and tracking.

Key Things to Know

• Quality vs OEM: This is a budget-friendly aftermarket belt, not OEM. It works fine for typical residential use but may wear faster under heavy loads or frequent use.
• Installation difficulty: Moderate. You’ll need to remove the deck (or at least the belt cover), release tension from the idler pulley, and route the belt per your mower’s diagram. A belt installation tool or spring puller helps with the tensioner.
• Common gotcha: Check your deck’s spindle pulleys for rust or debris before installing. A rough pulley will shred a new belt quickly.
• Fitment nuance: Some users report this belt runs slightly loose on certain decks—double-check the belt length (92.5 inches) against your old belt before final install.

Should You Buy It

This belt is a solid pick for homeowners with a compatible 42-inch MTD, Troy-Bilt, or Cub Cadet rider who need a quick, low-cost replacement for regular mowing. It’s not built for commercial use or heavy-duty conditions, but for the price and decent reviews, it’s a practical choice if you confirm fitment and check your pulleys first.