OEM Replacement - for MTD 954-04329A 754-04329A 754-04329, Compatible with 54" Deck Fit RZT- L54 S54 LX54 ZT1-54 ZT-S54 Z6900 - Durable, Aramid Cord Belt

What It Is

This is a replacement drive belt for 54-inch zero-turn mowers, specifically designed to transfer power from the engine to the cutting deck. It’s a direct OEM replacement for MTD models with a 54" deck, including RZT and ZT series mowers.

Fitment & Compatibility

Before buying, verify your mower’s deck size (must be 54") and model series: RZT-L54, S54, LX54, ZT1-54, ZT-S54, or Z6900. Cross-check your old belt’s part number—this replaces MTD 954-04329A, 754-04329A, and 754-04329. Measure your old belt’s length and width; this belt is aramid-cord and matches OEM specs. Avoid assuming universal fit—double-check your mower’s brand (MTD, Cub Cadet, Troy-Bilt) and year. Aftermarket belts may vary slightly; this is an OEM-spec replacement, not a generic.

Key Things to Know

• Aramid cord construction is more durable than standard rubber belts—resists stretching and heat better, especially under heavy use.
• Installation is moderate difficulty—you’ll need to release deck tension, route the belt around pulleys, and re-tension. A diagram helps; take a photo before removing the old belt.
• Common gotcha: On some RZT models, the belt must be threaded between idler pulleys in a specific order. Check your mower’s manual or a YouTube video for your exact model.
• Price vs. OEM—at $27.77, it’s cheaper than a dealer part but matches OEM quality. Expect 2-3 seasons of typical residential use.

Should You Buy It

Yes, if you own a 54" MTD-series zero-turn and need a reliable, long-lasting belt without paying dealer markup. It’s a solid upgrade from cheap aftermarket belts, especially for frequent mowing or rough terrain. Skip it if your mower isn’t on the compatibility list or you prefer a universal belt—this is a precise fit, not one-size-fits-all.