106-2247-03 106-8744-03 Mulching Mower Blade, Compatible with T oro TimeCutter Z420 Z4200 Z4202 ZS4200 ZS4202 Z530 42-Inch Cutting Deck Lawn Mower, Replace 110-6568-03 110-1857-03, 4 Pack

What It Is

This is a 4-pack of mulching blades for Toro TimeCutter zero-turn mowers with a 42-inch cutting deck. Mulching blades have a curved, high-lift design that recirculates grass clippings for fine cutting, ideal for leaving clippings on the lawn as natural fertilizer.

Fitment & Compatibility

Before buying, verify your mower’s deck size is exactly 42 inches—this blade set only fits that width. Compatible models include Toro TimeCutter Z420, Z4200, Z4202, ZS4200, ZS4202, and ZS530. It replaces OEM part numbers 110-6568-03 and 110-1857-03. Each blade measures roughly 21 inches long with a 1-inch center hole and a 7-point star drive pattern. Measure your existing blade’s length, center hole diameter, and drive pattern to confirm match. If your deck uses a different mounting system (e.g., oval hole or 5-point star), this won’t fit.

Key Things to Know

• Quality vs. OEM: Aftermarket blades may be slightly thinner or less balanced than Toro originals—check for warping before install.
• Installation difficulty: Easy; requires a socket wrench and torque to 30-40 ft-lbs. Use thread locker on bolts to prevent loosening.
• Common gotcha: Mulching blades work best with dry grass—wet clippings clump and reduce cut quality. Clean deck underside regularly.
• Balance check: Always balance new blades after mounting to avoid vibration and spindle wear. A simple blade balancer tool costs under $10.

Should You Buy It

This 4-pack is a solid value if you own a 42-inch Toro TimeCutter and want to replace worn or damaged mulching blades without paying OEM prices. It’s best for homeowners who mow weekly in dry conditions and prefer mulching over bagging. If you need high-lift bagging blades or have a different deck size, look elsewhere.