GM20
Grooming Mowers
Maintain a clean and level look with efficient Grooming Mowers. Designed to give a smooth cut on lawns, sporting fields and golf courses.
- 4 - 9 ft. (1.2 - 2.8 m) cutting widths
- Single- or dual-belt drive
- High blade speed for thorough cutting and uniform distribution
- Cat. 1 iMatch compatible with kit
GM20 Grooming Mower FAQs
What cutting widths does the John Deere GM20 grooming mower come in?
The GM20 Series comes in 4 to 9 ft cutting widths. The model detailed in the spec table has a 72 in. cutting width, a 74 in. overall width and a 1 to 5 in. cutting height range.
What tractor do I need for the John Deere GM20 grooming mower?
The GM20 needs 20 to 50 PTO hp at 540 rpm and a Category 1 hitch. It is iMatch compatible only with a quick-hitch conversion kit (code 9630).
Where is the John Deere GM20 grooming mower meant to be used?
The GM20 is designed to give a smooth cut on lawns, sporting fields and golf courses. High blade speed gives thorough cutting and uniform distribution out the rear discharge, and each deck runs three blades, with high lift standard and low lift available.
Can I mulch with the John Deere GM20?
Yes. A mulching kit with mulching blades, baffles and guard supports is available for field conversion, and it also does a good job on leaves. Follow the one-third rule for cutting height when mulching grass, and add an anti-scalping roller kit if you mow uneven ground.
How is the John Deere GM20 built?
The GM20 uses a gearbox with spiral gears to reduce noise and transfer more power to the blades, cast iron spindles with shielded ball bearings and an 8 gauge deck. A safety chain shield is standard, and the machine and gearbox each carry a 1 year warranty.
Where can I buy genuine parts for my John Deere GM20 grooming mower?
Koenig Equipment stocks genuine John Deere parts for the GM20, and our parts teams across Ohio and Indiana can find what you need for your machine. Choose same-day delivery from a nearby Koenig store or pick up in store. Our trained technicians can also handle your GM20's regular maintenance and repairs.