8TEN Deck Belt for MTD Cub Cadet RZT-42 LT1042 RZT17 LT1040 XT1-LT46 XT2-LX46 954-04045 954-05022 Toro 112-5800 (109 x 1/2)

What It Is

The 8TEN Deck Belt is a replacement drive belt for the mower deck spindle assembly on select MTD, Cub Cadet, and Toro zero-turn and lawn tractors. It powers the blades by connecting the engine pulley to the deck pulleys, designed for 42- to 46-inch cutting decks.

Fitment & Compatibility

Before buying, confirm your mower’s model number and deck size. This belt fits:

• Cub Cadet: RZT-42, RZT17, LT1042, LT1040, XT1-LT46, XT2-LX46
• Toro: Models using OEM part 112-5800 (e.g., TimeCutter, Titan with 42" or 46" decks)
• OEM cross-references: 954-04045, 954-05022, 112-5800

Check these three things:

1. Belt dimensions: 109 inches long x 1/2 inch wide (matches OEM specs).
2. Deck size: Only for 42" or 46" decks on listed models (not 50" or 54").
3. Deck type: Works with fabricated or stamped decks that use a single belt for all blades.

Not compatible with older MTD models using a different belt length (e.g., 105" or 112").

Key Things to Know

• Quality: Aftermarket belt with solid 4.2-star average. Some users report shorter lifespan than OEM (1–2 seasons vs. 3–4), but acceptable for the price.
• Installation: Moderate difficulty—requires removing the deck or using a tensioner tool. Refer to your mower’s manual for belt routing diagram.
• Common gotcha: Verify the belt is routed correctly around all pulleys and tensioner; incorrect routing causes rapid wear or blade disengagement.
• Noise: A few users note slight squealing at startup until the belt seats; this is normal for aftermarket belts.

Should You Buy It

If you need an affordable, direct-fit replacement for a 42" or 46" Cub Cadet or Toro deck and don’t mind replacing it every 1–2 years, this belt is a solid value. For heavy commercial use or if you prioritize maximum longevity, stick with an OEM belt—but for homeowners, the 8TEN is a cost-effective choice.