5/8" x 138" Deck Belt 954-0642 MTD 754-0642 Toro 112-0933, for Cub Cadet 54" Deck SLT1554 LGT1054 GT1554

What It Is

This is a replacement deck belt for 54-inch cutting decks on select Cub Cadet, MTD, and Toro lawn tractors. It drives the mower blades and transfers power from the engine pulley to the spindle pulleys.

Fitment & Compatibility

Before buying, verify your deck size is exactly 54 inches (not 50" or 60") and that your mower model is on the list: Cub Cadet SLT1554, LGT1054, GT1554, or similar MTD/Toro models using OEM part # 954-0642, 754-0642, or 112-0933. Measure your old belt length: this belt is 138 inches long and 5/8 inch wide. Check the belt routing diagram under your deck or in your manual—some decks use a different belt length even with the same deck size. Aftermarket versions may vary slightly in thickness or material; OEM is recommended for exact fit.

Key Things to Buy

• Measure your old belt before ordering—worn belts can stretch, so a new 138" belt may feel tighter.
• Installation is moderate difficulty; you’ll need to remove the deck or at least the belt guards and may need a socket wrench to release tension from the idler pulley.
• Common gotcha: routing the belt incorrectly—take a photo of the old belt’s path before removal.
• Aftermarket belts may be cheaper but can wear faster or slip; check reviews for durability on heavy-duty mowing.

Should You Buy It

If you own a 54" Cub Cadet SLT1554, LGT1054, or GT1554 and need a direct replacement, this belt is a solid choice at a fair price. It’s well-rated for fit and durability on standard residential mowing. For heavy commercial use, consider OEM or a reinforced aftermarket belt.