Mower Blades

(2 Pack) 108-3762-03 21" Blades Compatible with To-ro Most 21" Heavy-Duty Recycler/Super Recycler Lawn Mower,Fits for 21566 21566T 21568 etc.Replaces Part Numbers 93-4106, 93-4106-03, 133-8183-03

4.6/5 (15 reviews)
$31.99
(2 Pack) 108-3762-03 21" Blades Compatible with To-ro Most 21" Heavy-Duty Recycler/Super Recycler Lawn Mower,Fits for 21566 21566T 21568 etc.Replaces Part Numbers 93-4106, 93-4106-03, 133-8183-03
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What It Is

This is a 2-pack of 21-inch replacement blades designed for Toro’s Heavy-Duty Recycler and Super Recycler mowers. They are meant for mulching, bagging, or side-discharge cutting on residential or commercial push mowers.

Fitment & Compatibility

Before buying, confirm your mower deck is 21 inches and that your model is in Toro’s Recycler/Super Recycler line. This pack fits models like 21566, 21566T, 21568, and others using OEM part numbers 93-4106, 93-4106-03, or 133-8183-03. Measure your existing blade’s center hole diameter (should be 1-inch) and overall length (21 inches). These are aftermarket blades, not OEM Toro, so check that the offset and lift profile match your original blade—especially if you have a high-lift or mulching-only deck. If your mower uses a different blade pattern (e.g., 22-inch deck or older Craftsman), these won’t work.

Key Things to Know

  • Quality vs. OEM: These are affordable aftermarket blades. They may be slightly thinner or less balanced than genuine Toro blades, so check for vibration after installation.
  • Installation difficulty: Easy—just lift mower, remove center bolt (usually 5/8-inch or 15/16-inch), swap blades, and torque to 30-50 ft-lbs. Use a blade balancer to avoid wobble.
  • Common gotchas: The included blades may need sharpening out of the box. Also, ensure the blade’s “wing” orientation matches your deck’s airflow (usually the pointed end faces the deck housing). Reverse installation can cause poor cut or damage.
  • Durability: Expect 20-30 hours of cutting before needing a sharpen or replace, depending on grass type and debris.

Should You Buy It

If you own a compatible Toro 21-inch Recycler or Super Recycler and want a budget-friendly 2-pack for quick swaps, this is a solid value. Skip it if you need exact OEM balance or longer blade life—stick with genuine Toro blades instead.

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