405143 YTH22V46 Mower Deck Belt for Husqvarna YTH20K46 YTH21K46 46 Inch | 46" Deck Belt For Husqvarna 532405143 584453101 YTA22V46 YTH18K46 Craftsman Poulan PP20VA46 | Aramid Cord | 1/2" x 106"

What It Is

This is a 46-inch mower deck drive belt (1/2" x 106") for Husqvarna, Craftsman, and Poulan lawn tractors. It transfers power from the engine pulley to the deck spindles, enabling blade rotation for cutting grass.

Fitment & Compatibility

• Deck size: 46-inch (must match your mower deck width exactly)
• Models confirmed: Husqvarna YTH22V46, YTH20K46, YTH21K46, YTA22V46, YTH18K46; Craftsman (various 46" deck models); Poulan PP20VA46
• OEM cross-references: Husqvarna 532405143, 584453101
• Measurements: 1/2" width x 106" length (check your old belt’s length; a 105.5" or 106.5" belt will not fit correctly)
• Before buying: Verify your mower’s model number (stamped under seat or on frame) and measure your old belt if possible—some 46" decks use different lengths.

Key Things to Know

• Aramid cord construction offers better heat resistance and durability than standard rubber belts, but still wears over time.
• Installation: Moderate difficulty—requires removing the deck and routing the belt around pulleys, idler, and tensioner. Have a diagram handy.
• Common gotcha: The belt must be seated on the tensioner pulley last, after routing all other pulleys, to avoid slipping.
• Price vs. OEM: At $14.99, it’s cheaper than most OEM belts, but check reviews for fit consistency—some users report slight length variations.

Should You Buy It

Buy this if you need an affordable replacement for a Husqvarna, Craftsman, or Poulan 46" deck tractor and you’re comfortable with moderate DIY installation. It’s a solid value for the price, but if you want guaranteed OEM fit, stick with the Husqvarna 532405143.