24 Pcs Robot Lawn Mower Blade Mounting Washers Compatible with Mammotion Luba & Yuka – Designed for Original Blades (3–4 mm Shoulder Thickness), Reduce Grass Collecting Under the Blades.

What It Is

This is a set of 24 replacement mounting washers designed for Mammotion Luba and Yuka robot mowers. They raise the blade slightly (3–4 mm shoulder thickness) to reduce grass clippings collecting under the blade, improving cut quality and preventing clogging.

Fitment & Compatibility

• Exact models: Mammotion Luba (all versions) and Yuka (all versions). Not for other robot mowers (e.g., Husqvarna, Worx, Landroid).
• Blade type: Designed for original Mammotion blades only. Aftermarket or thicker blades may not fit the washer’s shoulder height.
• Measure before buying: Remove one blade and check the shoulder thickness of your current washer. If it’s 3–4 mm, these are a direct swap. If thicker or thinner, they won’t align properly.
• Quantity: 24 washers cover multiple blade changes—typically 6–8 sets depending on your mower’s blade count.

Key Things to Know

• Quality: 3.9 stars from 8 reviews—decent but limited feedback. Some users note the washers are slightly softer plastic than OEM, so inspect for wear after heavy use.
• Installation: Easy—remove blade screw, swap washer, re-tighten to manufacturer torque (about 6–8 Nm). No special tools needed.
• Common gotcha: If you use non-OEM blades (e.g., thicker or multi-piece), the washer may not seat flush, causing vibration or blade wobble. Stick with original blades.
• Performance: The raised shoulder reduces grass buildup under the blade, but don’t expect a dramatic cut improvement—it’s a minor tweak for clog-prone conditions (damp or tall grass).

Should You Buy It

Buy if you own a Mammotion Luba or Yuka and notice grass accumulating under the blades, especially in wet or thick grass. Skip if you use aftermarket blades or your current washers are already in good shape—this is a niche fix, not a universal upgrade.