1/2" x 105.50" Mower Deck Belt 405143 Replaces 532405143 584453101 PP21008 7133156/ Fits 46 Inch AYP Husqvarna Poulan Craftsman YTH22V46 YTH21K46 YTA22V46 PP22VH46 P185117H / Aramid Cord

What It Is

This 1/2" x 105.50" mower deck belt (OEM replacement 405143) drives the blades on 46-inch cutting decks. It’s designed for residential lawn tractors from AYP, Husqvarna, Poulan, and Craftsman—specifically models like YTH22V46, YTH21K46, YTA22V46, PP22VH46, and P185117H.

Fitment & Compatibility

Before buying, confirm three things:

• Deck size: Must be exactly 46 inches (belt length is 105.50 inches; 1/2-inch width).
• Model number: Cross-reference your tractor’s model with 532405143, 584453101, PP21008, or 7133156. This belt fits many AYP/Husqvarna/Poulan/Craftsman 46-inch decks, but not all—verify your specific model.
• Measure your old belt: If it’s worn, lay it flat and measure end-to-end. It should be 105.5 inches. If it’s stretched or broken, check the part number on the belt itself (often printed on the side). This is an aftermarket aramid cord belt, not OEM, but matches OEM specs.

Key Things to Know

• Quality: Aramid cord construction is stronger than standard rubber—resists stretching and heat better. Good for moderate use on residential mowers.
• Installation difficulty: Easy if you have a belt routing diagram (check your deck or manual). No special tools needed, but you may need to release the idler pulley spring tension.
• Common gotchas:
  • Belt may be tight on new install; work it onto pulleys gradually.
  • Verify routing—wrong path causes slipping or blade engagement issues.
  • If your old belt was 105.5 inches but the deck is 48 inches, this won’t fit—measure twice.
• Price vs. OEM: At $15.99, it’s often cheaper than OEM belts. Performance is comparable for typical homeowner use.

Should You Buy It

If you need a reliable replacement for a 46-inch deck on a compatible AYP/Husqvarna/Poulan/Craftsman tractor, this belt is a solid value. It’s affordable, uses durable aramid cord, and fits the most common models. Skip it if you have a different deck size or need an OEM-specific belt for a commercial machine.