405143 Deck Belt for Husqvarna YTH22V46 YTH20K46 YTH21K46 YTA22V46 584453101 532405143 Craftsman Poulan Pro (1/2'' x 106'')

What It Is

This is a 1/2-inch wide by 106-inch long deck belt designed to drive the mower blades on select Husqvarna, Craftsman, and Poulan Pro lawn tractors with 46-inch cutting decks. It replaces OEM part numbers 405143, 584453101, and 532405143.

Fitment & Compatibility

Before buying, verify your mower’s model number and deck size (must be 46 inches). This belt fits Husqvarna models YTH22V46, YTH20K46, YTH21K46, YTA22V46, and compatible Craftsman and Poulan Pro tractors with the same OEM belt number. Check your current belt’s part number—if it’s 405143, 584453101, or 532405143, this is a direct replacement. Measure your old belt: it must be exactly 1/2-inch wide and 106 inches long. This belt will not fit 42-inch or 54-inch decks, or models using a different OEM belt number.

Key Things to Know

• Quality: Aftermarket belt from a reputable brand (Craftsman) at a lower price than OEM. Expect similar durability for residential use, but may not match OEM longevity under heavy commercial use.
• Installation: Moderate difficulty. You’ll need to remove the deck or use a belt routing diagram (check your manual or online). Takes about 20–30 minutes with basic hand tools.
• Common Gotchas: The belt must be routed correctly around all pulleys and tensioners—misrouting can cause slipping or premature wear. Check for worn pulleys or a damaged tensioner before installing; a bad pulley can ruin a new belt quickly.
• Measurement Check: Measure your old belt to confirm 1/2" x 106". Some models use a slightly different length (e.g., 105.5" or 107"), which will not fit properly.

Should You Buy It

If you need a reliable, budget-friendly replacement for a Husqvarna, Craftsman, or Poulan Pro 46-inch deck tractor and your OEM belt number matches, this is a solid choice. It’s best for homeowners doing seasonal mowing; avoid it if you run a commercial operation or need maximum belt life.