954-04329A Mower Deck Belt for 954-04329 754-04329 754-04329A 490-501-C067 Compatible with MTD/Cub Cadet 54" Deck RZT- L54 S54 LX54 ZT1-54 ZT-S54 Z6900 Zero Turn Mowers (5/8" x 148 1/4")

What It Is

This is a replacement deck drive belt for 54-inch MTD/Cub Cadet zero-turn mowers, including the RZT, S54, LX54, ZT1-54, ZT-S54, and Z6900 series. It transfers power from the engine pulley to the mower deck spindles to spin the blades.

Fitment & Compatibility

Before buying, verify your mower has a 54-inch stamped or fabricated deck and that the model number matches one of these: Cub Cadet RZT-L54, S54, LX54, ZT1-54, ZT-S54, or Z6900. The belt measures 5/8-inch wide by 148 1/4 inches long—measure your old belt (lay it flat, end-to-end) to confirm length. This is an aftermarket replacement for OEM part numbers 954-04329, 754-04329, 754-04329A, and 490-501-C067. If your deck uses a different belt length or width (e.g., 1/2-inch or 149 inches), it won’t fit.

Key Things to Know

• Quality: Made from standard rubber/cord material; durable for residential use but may wear faster than OEM on heavy commercial jobs.
• Installation: Moderate difficulty—requires removing the deck or accessing belt routing under the mower. A diagram (check your manual or online) is essential to avoid misrouting.
• Common gotcha: The belt must be tensioned correctly; too loose causes slipping, too tight can damage pulleys or spindles.
• Check pulleys: Worn or damaged pulleys will shorten belt life—inspect and replace if needed.

Should You Buy It

If you have a compatible 54-inch Cub Cadet zero-turn and need a reliable, affordable replacement for residential mowing, this belt is a solid choice. Skip it if you need heavy-duty commercial longevity or prefer OEM parts—buy the genuine Cub Cadet belt instead.