SCITOO 2 Pack Lawn Mower Blade, 42 inches Blades Compatible for Toro for Exmark 106-2247-03 TimeCutter Z420 Z4200 Z4202 ZS 4200 ZS 4200S ZS, 17-42Z 16-42Z TimeCutter Z XLS 420T

What It Is

This is a 2-pack of 42-inch replacement mower blades designed for zero-turn Toro and Exmark mowers with 42-inch decks, such as the TimeCutter Z420, Z4200, and Exmark 17-42Z series. They are aftermarket blades meant for cutting grass on residential or commercial properties.

Fitment & Compatibility

Before buying, verify three things:

• Deck size: Your mower must have a 42-inch cutting deck. Measure from blade tip to tip across the deck if unsure.
• Model number: Confirm your machine is listed (e.g., Toro TimeCutter Z420, Z4200, Z4202, ZS 4200, ZS 4200S, ZS; Exmark 17-42Z, 16-42Z, TimeCutter Z XLS 420T). If your model isn’t on the list, cross-check the OEM part number 106-2247-03.
• OEM vs aftermarket: These are aftermarket blades, not genuine Toro or Exmark. They may differ in thickness, material, or balance. Check that the center hole (usually 5/8-inch) and blade length (42 inches total for a pair) match your spindles.

Key Things to Know

• Quality: With only 1 review at 5.0 stars, long-term durability is unproven. Aftermarket blades often wear faster than OEM.
• Installation: Straightforward if you have a socket wrench and blade removal tool. Torque to 70-90 ft-lbs. Always disconnect the spark plug first.
• Gotchas: These are a 2-pack—you’ll need both for a 42-inch deck. Double-check that the blade offset (lift angle) matches your cutting conditions (mulching vs. bagging). If your deck uses a 3-blade setup, this pack is insufficient.
• Balance: Aftermarket blades may need balancing before installation to avoid vibration and spindle wear.

Should You Buy It

If you need a low-cost, immediate replacement for a 42-inch Toro TimeCutter or Exmark zero-turn and are comfortable with aftermarket parts, this pack is a budget-friendly option. However, if you prioritize longevity, precise fit, or have a commercial use, stick with OEM blades (106-2247-03) for guaranteed performance.