8TEN Deck Blade Belt Kit for MTD G8300 Cub Cadet XT1-GT50 XT1-LT50 Troy Bilt TB2350 Super Bronco 50 inch

What It Is

The 8TEN Deck Blade Belt Kit is a replacement belt set designed for 50-inch cutting decks on select MTD and Cub Cadet lawn tractors, including the G8300, XT1-GT50, XT1-LT50, and Troy-Bilt TB2350 Super Bronco. It includes the primary drive belt needed to transfer power from the engine pulley to the blade spindles.

Fitment & Compatibility

• Deck size: 50 inches (not 46 or 54).
• Models confirmed: Cub Cadet G8300, XT1-GT50, XT1-LT50, Troy-Bilt TB2350 Super Bronco (and other MTD-based 50" decks with similar spindle/pulley layout).
• OEM cross-reference: Replaces MTD OEM part number 754-05040 (and variants). Check your current belt’s part number before ordering.
• Measure before buying: The belt length is typically 96.5 inches (outside circumference). Measure your old belt or consult your deck’s diagram to confirm.
• Not universal: Will not fit 46" or 54" decks, or non-MTD brands like John Deere or Husqvarna.

Key Things to Know

• Quality: 8TEN is an aftermarket brand. Users report it matches OEM performance at a lower price, but some note slightly shorter lifespan than genuine Cub Cadet belts.
• Installation difficulty: Moderate. You’ll need to remove the belt cover, loosen the idler pulley, and route the belt around the spindles and tensioner. A deck removal is not required, but access is tight.
• Common gotchas: The belt can be tight during installation—use a socket wrench on the idler to relieve tension. Ensure the belt is seated fully in all pulley grooves before running.
• Check your deck’s spindle condition: Worn or wobbly spindles will wear out a new belt quickly. Replace spindles if needed.

Should You Buy It

If you own a 50-inch MTD/Cub Cadet or Troy-Bilt tractor and need a reliable, affordable belt replacement, this 8TEN kit is a solid choice. It’s not built to last as long as an OEM belt, but for the price, it’s a good value for seasonal use or as a backup. Avoid it if you need a belt for a different deck size or brand.