Oregon 6PK G3 Gator Mulching Blades 60" Fits Exmark 103-6393 103-6398 116-5174 96-749

What It Is

This is a set of six Gator G3 mulching blades from Oregon, designed for 60-inch zero-turn mowers like Exmark Lazer Z and LCT models. They replace OEM blades with part numbers 103-6393, 103-6398, 116-5174, and 96-749, and are intended for high-volume mulching in commercial or residential use.

Fitment & Compatibility

Before buying, confirm your mower deck is exactly 60 inches—this set of six blades is not for smaller decks. Check your current blade part number against the OEM numbers listed (Exmark 103-6393, 103-6398, 116-5174, 96-749). These are aftermarket, not OEM, but Oregon is a trusted brand that matches OEM dimensions. Measure your blade length (should be ~20 inches per blade) and center hole diameter (likely 5/8-inch or 7/8-inch; verify on your spindle). Also confirm your deck’s spindle pattern—some Exmark models use a three-blade design, so six blades means two per spindle.

Key Things to Know

• Mulching performance: The G3’s “shark-tooth” design and winglets create finer clippings than standard blades, reducing bagging need. Works best with dry grass.
• Installation: Moderate difficulty—requires removing deck or lifting mower. Use a torque wrench (specs vary by model, typically 70-90 ft-lbs). Always replace all six blades at once.
• Common gotcha: These blades are slightly heavier than OEM, which may affect spindle balance if not torqued evenly. Check for bent spindles before installing.
• Durability: Oregon’s heat-treated steel holds an edge well, but avoid hitting rocks or roots—the G3’s aggressive design can chip on impact.

Should You Buy It

If you own a 60-inch Exmark ZTR and want premium mulching without paying OEM prices, this is a solid upgrade. It’s best for operators who prioritize fine clippings and less bagging, but avoid it if you mow wet grass or need a strictly lift-and-discharge blade.