8TEN LawnRAZOR Blade Set for Toro Z Master Z500 Z400 52 Inch Deck 105-7796-03 (Toothed Mulching) 3 Pack

What It Is

This is a 3-pack of toothed (mulching) blades for Toro Z Master Z400 and Z500 zero-turn mowers with a 52-inch deck. They replace OEM part 105-7796-03 and are designed to chop clippings finer for better nutrient recycling.

Fitment & Compatibility

• Deck size: 52 inches only (not 48, 60, or 72-inch decks).
• Mower models: Toro Z Master Z400 and Z500 series (e.g., 74940, 74941, 74956, 74957). Check your model number on the mower’s serial plate.
• OEM cross-reference: Replaces Toro 105-7796-03. Verify your current blade has the same part number.
• Measurements: Blade length is 20.5 inches, center hole diameter 0.75 inches, with a 5-point star drive. Measure your old blade to confirm.
• Not compatible with: Standard (non-toothed) blades, or any Toro deck other than the 52-inch Z Master Z400/Z500. Do not use on TimeCutter or Titan models.

Key Things to Know

• Quality: Made from heat-treated steel, balanced, and coated for rust resistance. Most users report they last a full season under normal use.
• Installation difficulty: Easy—requires a socket wrench and blade removal tool (or a block of wood to prevent spinning). Torque bolts to 70-80 ft-lbs.
• Common gotchas: The toothed design throws clippings more aggressively; avoid using in wet grass to prevent clumping. Check blade orientation (cutting edge faces upward toward deck).
• 3-pack covers a 52-inch deck: You’ll use all three blades (left, center, right). No extra blades needed.

Should You Buy It

If you own a Toro Z Master Z400 or Z500 with a 52-inch deck and want a mulching upgrade that reduces bagging frequency, this set is a solid value—reliable build, easy install, and a price well under OEM. Avoid if you prefer side-discharge or need blades for a different deck size.