405143 Deck Belt 1/2"x 105.5" Fits for Husqvarna Poulan Craftsman 46" Deck Drive Belt 532405143 584453101 YTH22V46 YTH21K46 YTA22V46 Deck Belthous Covered Belt

What It Is

This is a 1/2-inch wide by 105.5-inch long V-belt that drives the mower blades on select 46-inch cutting deck models from Husqvarna, Poulan, and Craftsman. It’s the primary belt that transfers power from the engine pulley to the spindle pulleys under the deck.

Fitment & Compatibility

Before buying, verify three things:

• Deck size – Must be a 46-inch deck. This belt will not work on 42-inch or 54-inch decks.
• Model numbers – Confirmed fits: Husqvarna YTH22V46, YTH21K46, YTA22V46, Poulan Pro PP46, Craftsman 917 series with 46-inch decks (e.g., 917.28932). Also replaces OEM part numbers 532405143, 584453101, and 405143.
• Belt dimensions – Measure your old belt: 1/2-inch width, 105.5-inch length. Slight variations (e.g., 105.0 or 106.0 inches) may still work, but exact match is best.

If your deck has a separate drive belt (for the transmission), this is not that belt—this is the deck drive (blade) belt only.

Key Things to Know

• Quality – Aftermarket belt, not OEM. Usually made from reinforced rubber. Expect 2-3 seasons of normal residential use before replacement.
• Installation – Moderate difficulty. You’ll need to remove the deck or at least the belt guard. Use a diagram (often printed on the deck or in your manual) to route around idler pulleys correctly.
• Common gotcha – Double-check the belt tensioner spring is not worn out. A weak spring can cause premature belt wear or slipping even with a new belt.
• Noise – Some users report a slight squeal for the first few minutes until the belt seats. This is normal for aftermarket belts.

Should You Buy It

If you have a 46-inch Husqvarna, Poulan, or Craftsman mower and need a budget-friendly replacement for the blade drive belt, this is a solid choice. It’s not premium OEM, but for the price it delivers reliable performance for typical home lawn care. Avoid if you run a commercial operation or need a belt to last through heavy, wet grass every week—consider OEM for that use case.