(3/8" x 35.75") 954-04032B Lawn Mower Drive Belt for MTD Troy Bilt 754-04032a 754-04032 954-04032 954-04032A 954-0465

What It Is

This is a 3/8" wide by 35.75" long drive belt (part #954-04032B) that transfers power from the engine pulley to the mower deck blades on select MTD and Troy-Bilt lawn tractors. It replaces OEM numbers 754-04032a, 754-04032, 954-04032, 954-04032A, and 954-0465.

Fitment & Compatibility

Before buying, verify your mower’s deck size (typically 42" or 46"), engine HP (17-24 HP range), and model number. This belt fits many MTD, Troy-Bilt, Cub Cadet, Yard Machines, and White Outdoor tractors from the early 2000s to mid-2010s. Check your owner’s manual or remove the old belt and measure it: length must be 35.75" (not 36" or 35"), width must be 3/8" (not 1/2"). Common compatible models include Troy-Bilt 13A-763F766, 13AM762G766, and MTD 13AX60KH099. Aftermarket belts like this one are functionally identical to OEM but cost 40-60% less.

Key Things to Know

• Quality: Kevlar-reinforced construction resists stretching and heat better than standard rubber belts. Expect 2-3 seasons with normal residential use.
• Installation: Moderate difficulty—requires removing the mower deck and routing the belt around three pulleys (engine, idler, and spindle). A spring-loaded idler pulley makes tensioning tricky; use a pry bar or belt tool to hold tension while routing.
• Common Gotcha: If the belt squeals or slips after installation, check that the idler pulley spring is properly hooked and the belt isn’t twisted. Also verify that the deck’s spindle bearings spin freely—a seized bearing will destroy a new belt quickly.
• Measurement Check: Measure your old belt’s length and width even if the model number matches. Some 42" decks use a 35" belt; this one is 35.75". A 1/2" width belt will not fit 3/8" pulleys.

Should You Buy It

If you have an MTD or Troy-Bilt tractor from the 2000-2015 era with a 42" or 46" deck and need a reliable, affordable replacement for a worn or broken drive belt, this is a solid choice. It’s not for zero-turn mowers or commercial-duty machines, but for residential use it matches OEM performance at half the price.