5/8 x 71 Inch Mower Lower Drive Belt 954-04249A for Troy Bilt Pony 36" and 42" TB42 Tuffy Lawn Tractors, Craftsman T110 LT2000 Huskee LT4200 LT3800 MTD 754-04249 754-04249A 954-04249 (Aramid)

What It Is

This is a 5/8-by-71-inch aramid-reinforced lower drive belt that transfers power from the engine pulley to the mower deck blades. It’s designed for 36-inch and 42-inch lawn tractors from Troy-Bilt, Craftsman, Huskee, and MTD, specifically models like the Troy-Bilt Pony, Craftsman T110/LT2000, and Huskee LT4200/LT3800.

Fitment & Compatibility

Before buying, confirm your mower deck size (36” or 42”) and check your original belt part number. This belt replaces OEM numbers 954-04249A, 754-04249, and 754-04249A. Measure your old belt length (71 inches) and width (5/8 inch) to match. It fits Troy-Bilt Pony, TB42, Tuffy; Craftsman T110, LT2000; Huskee LT4200, LT3800; and many MTD models with similar deck configurations. Verify your model’s belt routing diagram—some decks use a different belt for the upper drive vs. lower blade engagement. If your deck has a 5/8-inch pulley groove, this belt should work.

Key Things to Know

• Aramid construction offers better heat and wear resistance than standard rubber belts, reducing stretch and breakage under heavy use.
• Installation difficulty is moderate—you’ll need to remove the deck or access the belt tensioner. Expect 30–60 minutes for DIY installation.
• Check belt tension after installation; too loose causes slipping, too tight wears pulleys. Most decks have a spring-loaded tensioner—lubricate the pivot point if stiff.
• Common gotcha: The 71-inch length is critical—a 70-inch belt won’t fit, and a 72-inch will slip. Measure your existing belt or confirm your deck size before ordering.

Should You Buy It

If you own a Troy-Bilt, Craftsman, Huskee, or MTD 36”/42” lawn tractor and need a durable, cost-effective replacement for the lower deck drive belt, this is a solid pick. The aramid reinforcement adds longevity over OEM rubber belts, and the price is fair for the quality. Just double-check your model’s belt part number and length to avoid fitment issues.