1/2" x 79" Mower Deck Belt for MTD 754-0349 954-0349 112-0317 Cub Cadet 1212 GT1554 GTX2446 LX466 LX460 LX465 GT2300 GT2200 754-0640 954-0640 754-0339A 954-0339A

What It Is

This is a 1/2" wide by 79" long V-belt that drives the mower blades on select MTD, Cub Cadet, and Troy-Bilt lawn tractors with 48" to 54" decks. It’s a direct replacement for OEM belts (MTD 754-0349, 954-0349, 112-0317, and others) and is commonly used on garden tractors for heavy-duty residential mowing.

Fitment & Compatibility

Before buying, measure your existing belt length (79" outside circumference) and width (1/2"). Check your machine’s model number against the list: Cub Cadet GT1554, GTX2446, LX466, LX460, LX465, GT2300, GT2200, and MTD 754-0640/954-0640/754-0339A/954-0339A. This belt does not fit zero-turn mowers or decks under 48". Verify your deck has a single belt (not a dual-belt system) and that your pulley arrangement matches the OEM routing diagram. Aftermarket belts often use the same specs but may vary in stiffness—measure your old belt to confirm.

Key Things to Know

• Quality: Aftermarket belts (like this one) are typically Kevlar-corded and match OEM durability for residential use. Expect 1-3 seasons of life depending on deck cleanliness and tension.
• Installation: Moderate difficulty. You’ll need to remove the deck or at least the belt guard. Use a belt routing diagram (available online) to avoid twisting the belt over pulleys.
• Common gotcha: If your deck has a spring-loaded idler pulley, make sure it’s not frozen or worn—this will cause premature belt wear. Also, check for sharp edges on pulleys that could cut the belt.
• Length variance: Aftermarket belts can be +/- 0.5" from OEM. If your old belt was exactly 79", this is a direct swap. If it was slightly shorter, you may need to adjust the idler.

Should You Buy It

Buy this if you need a reliable, cost-effective replacement for a worn OEM belt on a compatible Cub Cadet or MTD garden tractor with a 48-54" deck. It’s a solid value at $19.99 for residential use, but skip it if you need a zero-turn belt or if your deck uses a longer/shorter belt.