Oregon 2PK Gator Mulching Blades 594-601 Replacement for Toro 120-9500-03 Exmark 116-6358-03

What It Is

This is a set of two Oregon Gator mulching blades (model 594-601) designed to replace OEM blades on select Toro and Exmark zero-turn mowers. They use a multi-angled cutting edge to chop clippings finer for better mulching and nutrient recycling.

Fitment & Compatibility

Before buying, confirm your mower deck size and blade measurements:

• Deck size: These blades fit 42-inch and 48-inch decks (check your model’s specific deck width).
• OEM replacements: Toro 120-9500-03 and Exmark 116-6358-03.
• Dimensions: 20.5 inches long, 2.25 inches wide, 0.203 inches thick, with a 7/16-inch center hole and a 1-inch diameter offset.
• What to check: Measure your existing blade length, width, and hole size. Verify your mower brand and model (Toro TimeCutter, Exmark Lazer Z, etc.) against Oregon’s fitment chart. Aftermarket blades may vary slightly from OEM—check clearance in your deck before use.

Key Things to Know

• Quality: Oregon Gator blades are well-regarded for durability and mulching performance, but some users report they wear faster than OEM blades on heavy-duty use.
• Installation: Easy swap if you have a socket wrench and blade removal tool. Torque to 40-50 ft-lbs. Use thread locker or anti-seize on bolts.
• Common gotchas: These blades are heavier than some OEM versions, which can affect spindle bearings over time. Also, they may require a slight lift adjustment on some decks for optimal mulching.
• Balance: Always check blade balance after installation to avoid vibration and uneven cuts.

Should You Buy It

If you own a compatible Toro or Exmark zero-turn and want an affordable, effective mulching upgrade over standard blades, this is a solid choice. It’s not ideal for light residential mowers or decks under 42 inches, and if you need maximum blade life for heavy commercial use, stick with OEM. For most homeowners and light commercial operators, the price-to-performance ratio is excellent.