954-04044A RZT 50 inch Deck Belt for MTD Cub Cadet RZT50 ZTL7000 ZT 5000 754-04044 754-04044A 954-04044 954-04044A Ariens Gravely 07200436 Troy-Bilt 50 inch Drive Belt Parts, 1/2 x 134

What It Is

This is a 1/2-inch wide by 134-inch long deck drive belt designed for 50-inch cutting decks on zero-turn mowers from Cub Cadet, MTD, Troy-Bilt, Ariens, and Gravely. It transfers power from the engine pulley to the deck spindles, enabling the blades to spin.

Fitment & Compatibility

Check these before buying:

• Deck size: Must be exactly 50 inches. This belt will not fit 46-inch or 54-inch decks.
• Model series: Confirmed fit for Cub Cadet RZT50, ZTL7000, ZT 5000 series; also fits Ariens/Gravely models using the OEM 07200436 belt and Troy-Bilt 50-inch deck models.
• OEM crossover: Replaces OEM numbers 754-04044, 754-04044A, 954-04044, 954-04044A, and 07200436. If your original belt has a different number, measure length (134 inches) and width (1/2 inch) to verify.
• Physical check: Measure your old belt end-to-end (flat, not looped). If it’s within 1/2 inch of 134 inches, this belt will work. Width must be exactly 1/2 inch—wider belts won’t fit pulley grooves.

Key Things to Know

• Quality: This is an OEM Cub Cadet belt (not an aftermarket generic). Expect longer life and tighter fit than no-name belts, but it is not Kevlar-reinforced—avoid severe impacts or debris jams.
• Installation difficulty: Moderate. You’ll need to remove the deck or at least the belt guard. Use a diagram from your manual (or online) for routing—mistakes cause rapid wear or belt flip.
• Common gotcha: The belt is directional. Look for an arrow on the belt indicating rotation direction; installing backwards reduces life by 50% or more.
• Tension check: After installing, ensure the belt is snug but not tight—over-tensioning wears spindles and pulleys. Use the deck’s idler pulley adjustment to set proper tension.

Should You Buy It

Yes, if you own a Cub Cadet, MTD, Troy-Bilt, Ariens, or Gravely zero-turn with a 50-inch deck and need a direct OEM replacement. It’s a reliable, correctly sized belt at a fair price—skip generic belts that may slip or stretch prematurely. If your mower has over 500 hours, also inspect the spindles and idler pulleys for wear before installing.