GARDENA 4087-20 Robotic Lawnmower Replacement Blade Kit

What It Is

This is a genuine OEM replacement blade kit for Gardena robotic lawnmowers, designed to replace dull or damaged cutting blades to restore mowing performance. It’s specifically for use with Gardena’s R40Li, R80Li, R100Li, R130Li, and R160Li robotic models.

Fitment & Compatibility

• Check your mower model: Works only with Gardena robotic mowers listed above. Not compatible with older Gardena models (e.g., R38Li, R70Li) or other brands like Husqvarna or Worx.
• OEM vs aftermarket: This is a genuine Gardena part, not a third-party substitute. It matches factory specs for blade thickness, length, and mounting holes.
• Blade measurements: Each blade is approximately 1.5 inches long with a 5mm center hole. Verify your mower’s blade holder accepts this size.
• Kit contents: Includes 9 blades and 9 screws. You’ll need a Phillips-head screwdriver for installation.

Key Things to Know

• Installation difficulty: Very easy – remove old blades, align new ones, and tighten screws. No tools beyond a screwdriver required.
• Blade lifespan: Expect 2–4 months of typical use (mowing 2–3 times per week) before dulling. Replace sooner if mower leaves uncut grass or struggles on slopes.
• Common gotcha: Blades are sharp – handle with gloves. Also, don’t overtighten screws; they can strip the plastic blade holder.
• Quality: OEM blades are hardened steel, last longer than cheap aftermarket sets, and reduce vibration. The included screws are self-tapping and fit perfectly.

Should You Buy It

If you own a compatible Gardena robotic mower and need a quick, reliable blade swap, this kit is a no-brainer. It’s affordable, OEM-quality, and user-friendly. Skip it if you have an older or different-brand mower, or if you’re looking for a bulk pack of aftermarket blades to save a few dollars (but expect shorter life).