Oregon 12PK G3 Gator Mulching Blades 60" Fits Exmark 103-6393 103-6398 116-5174 96-749

What It Is

The Oregon 12PK G3 Gator Mulching Blades are a set of 12 aftermarket mulching blades designed for 60-inch zero-turn mowers, specifically engineered to replace Exmark OEM blades (part numbers 103-6393, 103-6398, 116-5174, 96-749). They provide fine mulching and clipping recirculation for commercial or heavy residential use.

Fitment & Compatibility

• Deck size: Only fits 60-inch cutting decks. Measure your deck width to confirm.
• OEM cross-reference: Direct replacement for Exmark 103-6393, 103-6398, 116-5174, and 96-749. Not compatible with other brands without verifying blade dimensions.
• Measurements: Each blade is 20.5 inches long, 2.5 inches wide, with a 5-point star center hole and 0.5-inch thickness. Check your spindle’s center hole shape and bolt pattern (typically 5/8” or 3/4”) before ordering.
• Aftermarket note: Oregon is a reputable aftermarket brand, but verify your mower’s specific spindle and blade mount type (e.g., Exmark Lazer Z, Quest, etc.) to avoid fitment issues.

Key Things to Know

• Quality: These are G3 Gator blades with a hardened steel edge and a serrated design for finer mulching. They last longer than standard blades under heavy use.
• Installation: Moderate difficulty. You’ll need a torque wrench and blade removal tool. Tighten to manufacturer specs (typically 70–90 ft-lbs). Always lift the deck and disconnect the spark plug for safety.
• Common gotchas: The 12-pack is bulk—you likely only need 3 blades per spindle (12 total for a 60” 4-spindle deck). Check your deck’s spindle count. Also, these are mulching blades, not lift blades—they won’t discharge as well for bagging or side-discharge setups.
• Balance: New blades are balanced from the factory, but always check with a blade balancer after installation to prevent vibration.

Should You Buy It

Buy this if you own a 60-inch Exmark zero-turn mower (or compatible model) and need a bulk set of durable, fine-mulching blades for frequent commercial or heavy residential mowing. It’s a cost-effective alternative to OEM Exmark blades, with proven longevity and cut quality. Skip it if you have a different deck size or need high-lift blades for bagging or side discharge.