2025 John Deere GM40 Series GM40

Key features – GM40 Series

The GM40 series grooming mower offer a deep high-grade steel deck, premium caster wheels, and heavy-duty construction for a longer durability. The floating lower hitch, high-lift blades, and parallel side frames create an extremely even cut and an even distribution of cut material, when mowing at higher speeds. For ease of attachment, it´s iMatch™ quick-hitch ready from the factory, without additional hardware.

Combine with a 6-year gearbox warranty and a 3-year spindle warranty, operator will have a rugged, high performing, and easy to use grooming mowers.

Caster wheels

By having four height adjustable caster wheels, the GM40 Series Grooming Mower follows ground contours and prevents scalping for even cut quality. Heavy tubular caster wheel arms are bolted to rail supports for long life.

Choose from various cutting blades

To meet specific mowing needs, choose from two blade types:

• Low lift
• High lift (standard)

Floating top and lower hitch for level cutting

The floating top link on the GM40 Series keeps the deck tracking over ground contours for a level and smooth cut. For increased cut quality, connect your tractor’s 3-point hitch to the mower without an iMatch™ hitch system, taking advantage of the side-to-side floating clevis brackets.

High blade-tip speed

High blade tip speeds allow for better mowing quality at higher operating speeds and precise blade overlap work together to ensure performance and a quality cut.

Rugged component

The GM40 Series Grooming Mower rugged gearbox comes with a 6-year guarantee.

The spindles have a three-year warranty.

Easy maintenance

The shield protecting the drive belt are easy to remove without the need of a tool. This provides easy access to the belt sheaves, belt, and spring-loaded idler.

Deck design increases overall productivity

The deep deck design allows greater cutting volume and a cleaner cut. Offset gauge wheels reduce grass tracks.

Anti-scalping front roller kit

An anti-scalping front roller kit can be ordered as attachment for field conversion for GM40 Series Grooming Mowers. The roller is attached to the front of the cutting deck to help reduce scalping in uneven terrain.

Each kit contains one roller.

Rear chain shield conversion kit

A rear chain shield kit is available as an attachment for field conversion. It assists in preventing debris from flying out from underneath the deck of the rear-discharge grooming mowers.