116-6358-03 Lawn Mower Blades Gator Mulching Blades for Toro TimeMaster 30 Inch Deck Riding Mower Replacement for 120-9500-03 116-6358-S 20199 21811 21199 2Pack

What It Is

These are Gator mulching blades designed for Toro TimeMaster 30-inch deck riding mowers. They use a serrated edge and angled fins to chop clippings finer than standard blades, improving mulching performance and reducing bagging frequency.

Fitment & Compatibility

Before buying, confirm your mower has a 30-inch cutting deck and is a Toro TimeMaster model (e.g., 21199, 21811, 20199). These blades replace OEM part numbers 120-9500-03 and 116-6358-S. Measure your current blade: length should be 15.5 inches, center hole diameter 1 inch, and thickness 0.25 inches. They will not fit 21-inch or 42-inch decks. Check your spindle bolt pattern—these use a standard 5-point star drive.

Key Things to Know

• Quality: Made from heat-treated alloy steel with a hardened edge; hold up well against sticks and rocks but will dull faster than standard blades if you mow over gravel.
• Installation: Requires a torque wrench (set to 80-100 ft-lbs) and a 5-point star socket. Do not overtighten—stripping the spindle is a common mistake.
• Gotcha: These blades are shorter than OEM standard blades by about 1/4 inch. This slightly reduces cutting width but improves mulching. If you need maximum deck coverage, stick with non-mulching blades.
• Balance: Each blade is pre-balanced from the factory, but always check with a blade balancer after sharpening.

Should You Buy It

Buy these if you own a Toro TimeMaster 30-inch rider, want cleaner mulching without bagging, and don’t mind a small reduction in cut width. They’re a solid upgrade for fine-clipping lawns. Avoid if you primarily bag or need maximum deck coverage.