OEM Replacement - 954-05078 Mower Tractor Deck Belt for Cub Cadet/MTD/Troy-Bilt 954-05078, Husqvarna 574845603,Exmark 1-413308, 413308,Aramid Cord Heavy Duty & Durable (5/8" x 143 1/2")

What It Is

This is a heavy-duty aramid cord replacement deck belt (5/8" x 143 1/2") for mid-to-large lawn tractor mower decks. It drives the blades from the engine or electric clutch, and is designed for Cub Cadet, MTD, Troy-Bilt, Husqvarna, and Exmark zero-turn and riding mowers.

Fitment & Compatibility

Before buying, verify three things:

• Belt length and width: Must be exactly 5/8" wide and 143 1/2" outside circumference. Measure your old belt (lay flat, measure end-to-end) or check your owner’s manual.
• OEM cross-references: This belt replaces Cub Cadet/MTD/Troy-Bilt 954-05078, Husqvarna 574845603, and Exmark 1-413308 or 413308. It is not a universal belt—only use if your machine lists one of these numbers.
• Deck size: Commonly fits 46", 48", 50", and 54" decks on specific models. Check your deck’s part number or belt routing diagram (often on the deck itself or in the manual).

Key Things to Do

• Measure before ordering: Even if the model number matches, belt length can vary by build year. Always confirm length with a tape measure.
• Aramid cord quality: Aramid is stronger and more heat-resistant than standard rubber or polyester belts. This belt should last longer than a cheap store brand.
• Installation difficulty: Moderate. You’ll need to route around idler pulleys and tensioners. A belt diagram helps—take a photo before removing the old belt.
• Break-in period: New belts can stretch slightly. Recheck tension after the first 1–2 hours of use.

Should You Buy It

If your mower’s OEM belt number matches one of the listed cross-references and you want a durable, long-lasting replacement without paying dealer markup, this is a solid choice. It’s especially good for heavy-use mowing (thick grass, uneven terrain) where belt snapping is a concern. For casual home use on a single deck size, it’s overbuilt but still a good value.