3PK Oregon 595-077 G5 Gator Blades for 52" Husqvarna 574870801, 575240701

What It Is

This is a set of three Oregon G5 Gator mulching blades (part 595-077) designed for 52-inch cutting decks, specifically engineered for high-lift mulching on Husqvarna zero-turn mowers. They replace OEM parts 574870801 and 575240701, offering improved fine-clipping mulching performance compared to standard blades.

Fitment & Compatibility

Before buying, confirm your mower has a 52-inch deck—these blades won’t fit 48" or 54" decks. Check your current blade part number: this set directly replaces Husqvarna 574870801 and 575240701. Measure the blade length (should be ~20.5 inches), center hole diameter (usually 1-inch), and spindle hole pattern (typically 5-point star). Verify your mower brand: primarily Husqvarna zero-turns (e.g., Z254, Z242F), but also compatible with some Ariens, Gravely, and Bad Boy models using the same spindle pattern. If in doubt, cross-reference your OEM part number with Oregon’s online fitment tool.

Key Things to Know

• Mulching vs. bagging: These G5 blades are optimized for mulching (fine clippings that decompose quickly). They will not perform well for side-discharge or bagging—use standard lift blades for those tasks.
• Installation difficulty: Easy for DIYers—remove the old blade with a socket wrench, note the orientation (sharp edge facing rotation), and torque to 70–90 ft-lbs. Use a blade removal tool to prevent spinning.
• Sharpness out of box: They come sharp but not razor-edged. Expect to sharpen after 10–15 hours of use on thick grass.
• Balance check: Always test blade balance after installation—an unbalanced blade causes vibration and spindle wear. Use a simple nail-in-wall or blade balancer.

Should You Buy It

Buy this if you own a 52" Husqvarna zero-turn and want premium mulching performance with less bagging frequency. It’s a solid upgrade over OEM blades for fine-clipping lawns, but skip it if you primarily side-discharge or bag—stock blades are better for those uses.