5/8" x 134 Inch 954-04077A Deck V-Belt for Cub Cadet XT1 XT2 LT50 GT50 50" Lawn Tractor i1050 LT1050 SLT1550 LGTX1050 754-04077 MTD Troy Bilt Super Bronco XP 50 Craftsman T260 Toro 112-0332 (Aramid)

What It Is

This is a 5/8” wide, 134-inch Aramid-reinforced deck v-belt designed to drive the mower blades on 50-inch cutting decks. It’s a direct replacement for OEM Cub Cadet part 954-04077A (and cross-references 754-04077, MTD 954-04077A, Toro 112-0332) and fits a wide range of lawn tractors from Cub Cadet, MTD, Troy-Bilt, Craftsman, and Toro.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: This belt is for a 50-inch deck only. It will not fit 42”, 46”, or 54” decks.
• Model number: It fits Cub Cadet XT1, XT2, LT50, GT50, i1050, LT1050, SLT1550, LGTX1050; Troy-Bilt Super Bronco XP 50; Craftsman T260; and Toro models using a 50” deck. Check your mower’s model number (stamped on the frame or deck) against the manufacturer’s belt cross-reference.
• Belt dimensions: Measure your old belt length (134” nominal) and width (5/8”). The Aramid material is stronger than standard rubber, but the dimensions must match exactly for proper tension and pulley alignment.

Key Things to Know

• Aramid construction – This belt uses aramid fiber (like Kevlar) for higher tensile strength and less stretch over time vs. standard rubber belts. Expect longer life under heavy grass or frequent use.
• Installation difficulty – Moderate. You’ll need to remove the deck (usually two pins and a belt tension release), route the belt around all pulleys per the deck diagram, and re-tension. No special tools required, but a diagram helps.
• Common gotchas – The belt may run slightly tight on some decks initially; check pulley alignment and blade spindle bearings for wear before installing. Also, ensure the belt is not twisted between pulleys – a common mistake that causes premature wear.
• Cross-reference accuracy – This belt replaces OEM numbers 954-04077A, 754-04077, MTD 954-04077A, Toro 112-0332, and many others. Verify your mower’s OEM part number against this list.

Should You Buy It

If you have a 50” deck on a Cub Cadet XT1/XT2/GT50, Troy-Bilt Super Bronco XP 50, Craftsman T260, or compatible Toro model, this is a reliable, durable upgrade over standard belts. The aramid reinforcement is worth the premium for users who mow tough grass or want to avoid mid-season stretching. For occasional light use on a smaller deck, a standard rubber belt may suffice, but for consistent performance and longevity, this belt is a solid choice.