Husqvarna Part Number 580943402 Grass Bag Assy

What It Is

The Husqvarna 580943402 Grass Bag Assy is an OEM replacement grass collection bag designed for select Husqvarna walk-behind mowers. It catches clippings during cutting, ideal for lawns where mulching or side-discharge isn’t preferred.

Fitment & Compatibility

Before buying, confirm your mower’s model number—this bag fits Husqvarna models like the LC 221A, LC 221AH, and LC 221PH (check your manual or deck sticker). It’s designed for 21-inch steel decks with a rear-bagging system. Measure the bag mounting bracket width (approx. 8.5 inches) and ensure your mower uses a single-bag attachment with a top-mounted handle. This is an OEM part, not aftermarket, so it’s specific to Husqvarna—won’t fit other brands without modification. Verify your mower’s year (2014–2020 models are common fits) and that the bag’s 1.5-bushel capacity matches your deck’s chute opening.

Key Things to Know

• Quality: Heavy-duty fabric with a rigid frame; holds up to regular use but avoid overfilling to prevent tearing at the seams.
• Installation: Easy—slides onto the mower’s rear bracket and hooks into place; no tools needed. Takes under 5 minutes.
• Gotchas: The bag’s top handle can crack if you yank it off when full. Empty it frequently to reduce strain. Also, it’s not compatible with side-discharge or mulching plug kits—you’ll need to remove those first.
• Fitment check: If your mower has a different bagging system (e.g., Quick-Connect or older models), this won’t work—measure your existing bag’s attachment points.

Should You Buy It

Buy this if you own a compatible Husqvarna walk-behind mower and need a direct OEM replacement for a worn or damaged original bag. It’s a solid, durable choice for consistent bagging performance, but skip it if you want a universal aftermarket option or have a different brand mower.