954-04329A Deck Belt 5/8'' x 148-1/4'' for Cub Cadet ZT1-54, RZT-L54, MTD, Craftsman Riding Mowers, Replaces Cub Cadet 54 inch Deck Belt 954-04329A, 954-04329, 754-04329,754-04329A

What It Is

This is a replacement deck drive belt (5/8’’ wide x 148-1/4’’ long) for 54-inch cutting decks on Cub Cadet ZT1-54 and RZT-L54 zero-turn mowers, plus select MTD and Craftsman riding mowers. It transfers power from the engine pulley to the spindles to spin the blades.

Fitment & Compatibility

Before buying, confirm your machine has a 54-inch deck and that the original belt measures 5/8’’ wide x 148-1/4’’ (or 148.25 inches). This belt directly replaces OEM part numbers 954-04329A, 954-04329, 754-04329, and 754-04329A. It fits Cub Cadet ZT1-54 (all series), RZT-L54, and many MTD/Craftsman models with the same 54-inch deck and belt routing. If your mower uses a different belt length (e.g., 149 inches) or width (1/2’'), this will not work. Check your owner’s manual or the old belt’s printed numbers.

Key Things to Know

• Quality: This is an OEM-grade belt (not aftermarket), so it should match original durability and fit without modification.
• Installation: Moderate difficulty – you’ll need to remove the deck or access the belt path from above. A belt routing diagram is essential; take a photo before removing the old belt.
• Common gotcha: On some ZT1-54 models, the belt must be routed around a tensioner pulley and two idler pulleys in a specific sequence. Missing a pulley will cause slipping or premature wear.
• Break-in: Expect slight stretching during the first hour of use – recheck tension after 2-3 mows.

Should You Buy It

If you own a Cub Cadet ZT1-54 or RZT-L54 with a 54-inch deck and need a direct, reliable replacement at a fair price, this belt is the right choice. It’s also a solid option for compatible MTD/Craftsman models, but cross-check your OEM numbers first. Avoid if your belt is a different size or you’re looking for a cheaper generic alternative.