Oregon 3PK G3 Gator Mulching Blades 60" Exmark 103-6393 103-6398 116-5174 96-749

What It Is

This Oregon 3-pack of G3 Gator mulching blades is designed for 60-inch Exmark mower decks, intended to replace OEM blades (part numbers 103-6393, 103-6398, 116-5174, and 96-749) for superior mulching performance. They’re best for residential or commercial mowing where fine clippings and less bagging are desired.

Fitment & Compatibility

Before buying, verify your deck is exactly 60 inches and your mower model is Exmark (e.g., Lazer Z, Quest, or Turf Tracer) that uses the listed OEM part numbers. Measure blade length: these are 20.5 inches (521 mm) with a 1-inch (25.4 mm) center hole and a 5-point star drive pattern. Check your spindle’s drive pin—these won’t fit round-hole spindles. Also confirm you need three blades; some Exmark 60-inch decks use two or four. Cross-reference your current blade’s part number against Oregon’s compatibility list online.

Key Things to Know

• Quality: Oregon G3 Gators have heat-treated steel and a patented “Gator” tooth design for finer clipping shredding, but they wear faster than standard blades in sandy or rocky conditions.
• Installation: Moderate difficulty—requires removing the deck or raising the mower. Use a torque wrench to tighten to 70–90 ft-lb. The star drive pattern must align exactly with the spindle pin; forcing it can damage the spindle.
• Common gotcha: These blades are slightly thicker than some OEM equivalents, so they may not fit if your deck spindle has tight clearance. Test one blade before installing all three.
• Balance: Each blade comes pre-balanced, but always check with a blade balancer after sharpening or if you hit a solid object.

Should You Buy It

If you own a 60-inch Exmark mower that uses the listed OEM blades and you prioritize fine mulching over run-flat longevity, this Oregon set is a solid, cost-effective upgrade. Avoid if your spindle requires a different drive pattern or if you mow extremely abrasive turf regularly—you’ll be replacing them more often.