Parts 405143 Deck Belt pertain with Husqvarna/Poulan/Craftsman YTH22V46 YTH20K46 YTH21K46 YTA22V46 Aramid Cord 46" Inch/105.50 inches

What It Is

This is a 46-inch, 105.5-inch long Aramid cord deck belt (OEM part #405143) designed to drive the mower blades on select Husqvarna, Poulan, and Craftsman lawn tractors, including the YTH22V46, YTH20K46, YTH21K46, and YTA22V46 models.

Fitment & Compatibility

• Deck size: Must be a 46-inch cutting deck. Measure your old belt length—this belt is exactly 105.5 inches (not 104.5 or 106 inches).
• Model check: Confirmed fit for Husqvarna YTH22V46, YTH20K46, YTH21K46, Poulan PPB46, and Craftsman YTA22V46. Verify your model number on the tractor’s sticker under the seat or on the frame.
• OEM vs aftermarket: This is an aftermarket replacement, not a genuine Husqvarna/Craftsman belt. It uses Aramid cord (stronger than standard rubber) for longer life, but check if your tractor requires a specific OEM belt for warranty.
• Measurements: Width is typically 1/2 inch. If your old belt is 1/2-inch wide and 105.5 inches long, this is a direct swap.

Key Things to Know

• Installation difficulty: Moderate. You’ll need to remove the deck or release the belt tensioner. A belt routing diagram is helpful—take a photo before removing the old belt.
• Quality: Aramid cord resists stretching and heat better than standard belts, but it’s stiffer. Expect a break-in period of 1–2 mowings.
• Common gotcha: Double-check the belt path. Some 46-inch decks use a two-belt system (one for blades, one for drive). This is the blade/deck belt only.
• Lifespan: With proper tension and no debris, expect 2–3 seasons of normal residential use.

Should You Buy It

This is a solid budget-friendly option if you own a compatible 46-inch Husqvarna, Poulan, or Craftsman tractor and need a reliable, durable deck belt. It’s not OEM but offers good value for the price—just confirm your model and belt length before buying.