954-04329A Deck Belt Replaces Cub Cadet 54 inch Deck Belt, Fits Cub Cadet ZT1-54, RZT-L54, Craftsman, Troy-Bilt, MTD Riding Mower & Lawn Tractor (5/8" x 148.25")

What It Is

This is a replacement deck belt for 54-inch cutting decks on select Cub Cadet, Craftsman, Troy-Bilt, and MTD riding mowers and lawn tractors. It drives the blades from the engine pulley and is critical for even cutting.

Fitment & Compatibility

Measure first: This belt is 5/8" wide by 148.25" long. Verify your old belt’s length—if it’s even 1/4" off, it may not tension correctly or could slip.

Direct-fit models include: Cub Cadet ZT1-54, RZT-L54, and many 54" deck tractors from Craftsman, Troy-Bilt, and MTD. This is an aftermarket belt, not OEM Cub Cadet. It replaces OEM part 954-04329A.

What to check:

• Deck size must be exactly 54 inches.
• Confirm your mower’s belt routing diagram (often under the deck or in the manual) matches this belt’s path.
• If your mower uses a different OEM belt number (e.g., 954-04328), this won’t fit.

Key Things to Know

• Quality is mixed. Some users report it works fine; others note it wears faster than OEM. Inspect for fraying after the first few hours.
• Installation is moderate. You’ll need to remove the deck or at least the belt cover, and a belt tool helps. Watch a routing video for your specific model.
• Common gotcha: This belt is a direct replacement for 954-04329A only. Double-check your old belt’s part number—don’t rely solely on deck size.
• Price vs. OEM: At ~$29, it’s cheaper than a Cub Cadet branded belt (~$40-50), but you may sacrifice lifespan.

Should You Buy It

If you need a budget-friendly replacement for a 54" Cub Cadet ZT1 or RZT-L and you’re comfortable with slightly shorter belt life, this will get the job done. For heavy commercial use or if you want maximum durability, stick with OEM.