FourShow 【Cut More Efficiently】 Blade Plate + 6 Pieces Replacement Blades Compatible with Husqvarna Automower, for 400/500 Series (with 6 Replacement Blades)

What It Is

This is a replacement blade plate and six-blade set for Husqvarna Automower robotic mowers, designed to restore cutting performance by swapping out worn or damaged blades. It’s intended for the 400 and 500 series models.

Fitment & Compatibility

Before buying, confirm your mower is a Husqvarna Automower 400 or 500 series model (e.g., 430X, 450X, 520, 550). This kit is not compatible with 300 series or older models. The blade plate is a direct OEM-style replacement—no modifications needed. Check that your mower uses a three-blade pattern per disc (each disc holds 3 blades; this set includes 2 discs for 6 blades total). Measure the original blade plate diameter: this one matches the standard 7-inch (180mm) plate. If your mower has a different plate size or blade attachment system, it won’t fit.

Key Things to Know

• Quality vs OEM: Aftermarket blades are slightly thinner than Husqvarna originals—expect a 10-15% shorter lifespan, but they cut fine for regular use.
• Installation: Easy—remove the old plate, align the new one, and snap in blades. No tools beyond a screwdriver for the center bolt. Takes about 5 minutes.
• Common gotcha: Blades wear faster on gravel or sandy soil. Check blade condition every 20-30 hours of mowing; replace all six at once for even cutting.
• No sharpening: These are disposable blades—replace, don’t sharpen.

Should You Buy It

Buy this if you want a budget-friendly, drop-in replacement for your Husqvarna Automower 400/500 series and don’t mind slightly shorter blade life than OEM. It’s ideal for routine maintenance on medium to large lawns. Skip it if you need maximum durability for heavy-duty use or have a different mower model.