[Upgraded Grip120] BlueStars 954-04077A Deck Belt for 50 Inch Cub Cadet LT1050 XT1 LT50 Troy Bilt MTD Super Bronco XP50 Craftsman Lawn Mower - Replaces 954-04077 754-04077 Aramid Cord 5/8" x 134"

What It Is

This is a 5/8" x 134" aramid cord deck belt designed to transfer power from the engine pulley to the mower blades on 50-inch cutting decks. It’s an aftermarket replacement for OEM part 954-04077A, commonly used on Cub Cadet, Troy-Bilt, MTD, and Craftsman lawn tractors.

Fitment & Compatibility

Before buying, confirm your mower has a 50-inch deck and that your OEM belt number is 954-04077, 754-04077, or 954-04077A. This belt fits models like the Cub Cadet LT1050, XT1 LT50, Troy-Bilt Super Bronco XP50, and Craftsman with 50" decks. Measure your current belt length (should be 134 inches) and width (5/8 inch). Check your deck’s pulley layout—some 50" decks use a different belt routing or a longer belt. Always verify your model number against the seller’s fitment list.

Key Things to Know

• Aramid cord construction offers better heat resistance and longer life than standard rubber belts, but it’s stiffer and may take a few minutes of run-in to seat properly.
• Installation difficulty: Moderate. You’ll need to remove the deck or at least the belt cover, release the idler pulley tension, and route the belt around all pulleys according to your deck diagram. A wrench and a pry bar help.
• Common gotcha: Some users report the belt is slightly tighter than OEM. If your deck pulley bearings are worn or the idler spring is weak, you may hear squeaking or see premature wear. Check pulley alignment and tension spring condition before installing.
• Noise: The aramid cord can be noisier than rubber during the first few cuts. This usually quiets down after 30–60 minutes of use.

Should You Buy It

If you want a durable, cost-effective replacement for a worn OEM belt on your 50-inch Cub Cadet, Troy-Bilt, or Craftsman, this is a solid choice. It’s not OEM, but the aramid cord construction offers better longevity than basic rubber belts. Skip it if you need an exact OEM fit with zero break-in or if your deck has known pulley alignment issues.