Mower Blades

131-3939-03 Blades Fit for 42 inch Toro Time Cutter SS4200 SS4225 MX4250 Exmark Quest Zero Turn Riding Mower Replace 131-3939-03P 114-1622 79220P High Lift, 2 Pack

4.6/5 (314 reviews)
$33.99
131-3939-03 Blades Fit for 42 inch Toro Time Cutter SS4200 SS4225 MX4250 Exmark Quest Zero Turn Riding Mower Replace 131-3939-03P 114-1622 79220P High Lift, 2 Pack
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What It Is

This is a set of two high-lift replacement blades designed for 42-inch zero-turn mowers, specifically the Toro Time Cutter SS4200, SS4225, MX4250, and Exmark Quest models. The high-lift design increases airflow for better grass clipping discharge and bagging performance, ideal for tall or wet grass.

Fitment & Compatibility

Before buying, confirm your mower has a 42-inch cutting deck and that the blade measures 17 inches long, 2.75 inches wide, with a 5-point star center hole (common on Toro/Exmark spindles). This set replaces OEM part numbers 131-3939-03P, 114-1622, and 79220P. It fits Time Cutter SS4200 (2013+), SS4225, MX4250, and Exmark Quest models with 42-inch decks. Check your owner’s manual or existing blade stamp for exact part number—don’t rely on deck size alone, as some 42-inch decks use different blade lengths or hole patterns.

Key Things to Know

  • Quality: These are aftermarket blades (not OEM Toro), but 4.6 stars from 314 reviews indicate good durability and sharpness out of the box. Expect them to last 1-2 seasons with normal use.
  • Installation difficulty: Easy—15 minutes with a socket wrench. Use a blade removal tool or block the blade to prevent spinning. Torque spindle bolts to 70-90 ft-lbs (check your manual).
  • Common gotchas: High-lift blades require more engine power and can increase noise; they’re not ideal for low-horsepower mowers. If your deck clogs easily, these may worsen the issue in dry, dusty conditions.
  • Balance: Aftermarket blades sometimes need balancing before install. Use a blade balancer or a nail in the wall to check—unbalanced blades cause vibration and spindle wear.

Should You Buy It

If you own a 42-inch Toro Time Cutter or Exmark Quest and need reliable, affordable replacements for bagging or heavy cutting, this 2-pack is a solid value at $33.99. It’s not for mulching—choose a mulching blade set instead. For OEM purists, spring for genuine Toro blades, but these deliver near-OEM performance for less.

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