Genuine OEM TORO Parts - Support-Blade 108-3766-03

What It Is

The Genuine OEM Toro Support-Blade 108-3766-03 is a replacement blade designed for select Toro walk-behind mowers. It provides lift and cutting action for standard residential lawn care, not heavy-duty or mulching applications.

Fitment & Compatibility

Before buying, verify your mower’s model number—this blade fits specific Toro 22-inch recycler and personal pace mowers (e.g., models 20333, 20334, 20340, 20341, 20353, 20370). Check your deck size: it’s for 22-inch decks only. This is an OEM part, so it guarantees exact fit for listed models; aftermarket alternatives may vary in thickness or hole pattern. Measure your existing blade length (22 inches tip-to-tip) and center hole diameter (typically 1 inch). Confirm the blade part number on your mower’s manual or under-deck sticker matches 108-3766-03.

Key Things to Know

• Quality: OEM Toro steel with balanced design—lasts longer than cheap aftermarket blades and reduces vibration.
• Installation difficulty: Easy with basic tools (socket wrench, blade removal tool or block of wood). Torque to 40-50 ft-lbs; don’t overtighten.
• Common gotchas: This is a standard lift blade, not a mulching blade. If you want finer clippings, you’ll need a separate mulching blade or kit. Always wear gloves—blades are sharp.
• Maintenance: Sharpen every 20-25 hours of use; replace if bent, cracked, or excessively worn (nicked edges reduce cut quality).

Should You Buy It

Buy this if you own a compatible Toro 22-inch walk-behind mower and want a guaranteed OEM fit with reliable cutting performance. It’s ideal for homeowners who prioritize durability and easy installation over bargain pricing. Skip it if you need a mulching blade or have a different deck size.