Lawn Mower Drive Belt Replace 580364609 for Husqvarna LC221A Replacement Part Accessories, 3/8 Inch x 63.5 Inch

What It Is

This is a replacement drive belt for Husqvarna LC221A walk-behind mowers, part number 580364609. It’s a 3/8-inch wide, 63.5-inch long belt that transfers power from the engine pulley to the wheels, enabling self-propelled movement.

Fitment & Compatibility

• Primary fit: Husqvarna LC221A (most model variants). Also fits some Poulan Pro and AYP models with the same belt spec.
• Measure your old belt first: Width must be 3/8 inch; length must be exactly 63.5 inches (or 161.3 cm). Even a 1/2-inch difference can cause slipping or tension issues.
• Check deck size: This belt is not tied to a specific deck width—it’s for the drive system, not the blade. Confirm your mower’s model number on the serial tag (under seat or on frame).
• OEM vs aftermarket: This is an aftermarket replacement, not OEM Husqvarna. It should match OEM specs, but aftermarket belts can vary slightly in material thickness or flexibility. If you need exact OEM, look for Husqvarna 580364609.
• Cross-reference: Also listed as Oregon 80-042, Stens 280-034, or Rotary 14306. Use your model number to double-check.

Key Things to Know

• Quality vs price: At $11.99, it’s budget-friendly. Expect reasonable durability for residential use, but heavy commercial mowing may wear it faster than an OEM belt.
• Installation difficulty: Moderate. You’ll need to remove the blade, deck shield, or belt cover (depending on model). Watch a video for your specific mower—routing is easy to mess up.
• Common gotcha: The belt must be routed exactly around the tensioner pulley and drive pulley. If it’s too tight or too loose, the mower won’t self-propel. Check tension after a few minutes of use.
• No blade engagement: This belt does not drive the blade—only the wheels. Don’t confuse it with a deck belt.

Should You Buy It

If you own a Husqvarna LC221A and need a quick, affordable drive belt replacement for light-to-moderate lawn mowing, this is a solid pick. For heavy commercial use or if you want guaranteed OEM fit, spend more on the genuine Husqvarna part.