954-04317 Drive Belt 1/2" x 67" for Cub Cadet MTD Troy-Bilt Craftsman fits Cub Cadet RZT-L42 RZT-L46 RZT-L50 RZT-L54 RZT-S42 RZT-S46 RZT-S50 Replace 754-04317 954-04317A 754-04317A

What It Is

This is a replacement drive belt (1/2" x 67") for select Cub Cadet, MTD, Troy-Bilt, and Craftsman zero-turn mowers. It connects the engine pulley to the transmission, enabling forward/reverse movement. Commonly used on RZT and RZT-S series mowers with 42", 46", 50", or 54" decks.

Fitment & Compatibility

Check these before buying:

• Exact model: Fits Cub Cadet RZT-L42, RZT-L46, RZT-L50, RZT-L54, RZT-S42, RZT-S46, RZT-S50. Also fits some MTD, Troy-Bilt, and Craftsman zero-turns with the same belt path.
• OEM numbers: Replaces 754-04317, 954-04317A, 754-04317A. Cross-check your old belt’s part number.
• Measurements: 1/2" wide x 67" outside circumference. Verify with a cloth tape (don’t stretch the belt). A 66.5"–67.5" belt may work, but 67" is exact.
• Deck size doesn’t matter for this drive belt—it’s for the transmission, not the deck. Engine size (e.g., 20–26 HP) also doesn’t affect fit.
• OEM vs aftermarket: This is a genuine Cub Cadet (OEM) belt. Aftermarket versions are cheaper but may wear faster.

Key Things to Know

• Quality: OEM belt is reinforced with Kevlar or similar material—holds up well under normal use. Expect 2–3 seasons if you mow 1 acre weekly.
• Installation difficulty: Moderate. Requires routing around pulleys and a spring-loaded idler. Have a diagram handy (check your manual or deck sticker).
• Common gotcha: If your mower vibrates or slips after replacement, the belt tensioner spring might be weak or the pulleys worn. Inspect pulleys for grooves or wobble.
• Don’t confuse with deck belt: This is the drive belt, not the blade belt. Deck belts are shorter and wider (typically 1/2" x 84–120").

Should You Buy It

If you own one of the listed Cub Cadet RZT or RZT-S models and need a reliable, direct-fit drive belt, this is a solid choice. The OEM price is fair, and the 4.4-star rating confirms durability. Skip it if your model isn’t listed—measure first, or you’ll waste time on returns.