954-04118 754-04153 46" Inch Deck Replacement Belt 1/2" X 122" Deck Belt for Cub Cadet LT1045 LT1046 L1046 MTD 13AP605H755 Replacement 754-04153 754-04153A 954-04153 954-04153A 754-04118

What It Is

This is a 46-inch deck replacement belt (1/2" x 122") for Cub Cadet, MTD, and select Troy-Bilt lawn tractors. It drives the mower blades under the deck, and is commonly used on models like the LT1045, LT1046, and L1046 with a 46-inch cutting deck.

Fitment & Compatibility

Check these before buying:

• Deck size: Must be 46 inches. Measure your deck width or check the model plate.
• Model numbers: Fits Cub Cadet LT1045, LT1046, L1046, and MTD 13AP605H755. Also fits some Troy-Bilt and Craftsman models with a 46-inch deck and similar pulley layout.
• OEM cross-references: Replaces 754-04153, 754-04153A, 954-04153, 954-04153A, and 754-04118. Confirm your old belt’s part number matches one of these.
• Belt dimensions: 1/2 inch wide, 122 inches long. Measure your old belt’s length (lay it flat, measure end-to-end) to verify. A mismatched length will cause poor blade engagement or belt slip.
• Belt type: This is a standard V-belt. Not for zero-turn or hydrostatic drive systems.

Key Things to Know

• Quality: Aftermarket belt at a budget price. Expect decent lifespan (1-2 seasons with normal use), but may wear faster than OEM on high-hour or rough-terrain mowing.
• Installation difficulty: Moderate. You’ll need to remove the deck or at least the belt guard, route around pulleys, and re-tension. A belt diagram (often under the deck or in the manual) is essential.
• Common gotchas: The belt can slip if the idler pulley is worn or the tension spring is weak. Check both before installing. Also, avoid overtightening—this belt is 1/2" wide and prone to edge fraying if the pulleys are misaligned.
• Belt direction: Some belts have a directional arrow; this one doesn’t, but install it with the printed side facing out for easier inspection.

Should You Buy It

Buy this if you need a quick, affordable replacement for a 46-inch Cub Cadet or MTD deck belt and your old belt matches the 122-inch length. It’s a solid value for light-to-moderate mowing, but if you mow heavy grass or large lawns, consider an OEM belt for longer life.