2025 John Deere Z955R EFI

Powerful 30.5 hp (22.7 kW) engine has electronic fuel injection (EFI) and electronic throttle control for quick starts and superior performance

A commercial-quality, 30.5 hp (22.7 kW) gross at 3600 rpm, air-cooled engine with EFI powers the Z955M and Z955R ZTrak™ Mowers.

Engine features include:

• Overhead valve design
  • More horsepower and torque per cubic inch of displacement
  • Better fuel efficiency
• EFI with electronic throttle control
  • Electronically adjusts the supply of both fuel and air, responding instantaneously when the mower transitions from light to heavy mowing.
  • Unlike mechanical governors that droop under load, torque rises while maintaining constant full-throttle engine speed.
  • Productivity and cut quality are improved because the mower blades keep turning at full speed, delivering optimal cut quality and dispersion of clippings.
  • Immediate starting in hot or cold ambient temperatures or after long periods of seasonal storage
  • No choke linkage for the user to operate
  • Higher reliability with the elimination of vapor locking, misfiring, run-on, and after-bang
  • Automatic altitude compensation
  • Delivers fuel precisely for added efficiency
  • Reduces the potential for plug fouling
• V-twin design
  • Fast starts
  • Smooth operation
• Overhead valves
  • More horsepower and torque per cubic inch of displacement
  • Better fuel efficiency
• Air-cooled for minimum maintenance and maximum reliability
• Aluminum cylinder block
  • Effectively dissipates heat to extend engine life
  • Lightweight and strong construction
• Full-pressure lubrication with full-flow filter
  • Reduces engine wear by ensuring proper lubrication, even when operating on hillsides or uneven terrain
  • Filtered oil reduces risk of contamination for increased engine life for increased engine life
  • Oil cooler helps keep engine at optimum temperature
• Standard cleanout ports for easy access to remove debris collecting in cooling fins
• 20-amp alternator

Extra durability and mowing performance from 7-Iron™ PRO Side-Discharge decks pressed from a single piece of steel

Key features of the 7-Iron PRO mower deck:

• Deck is forged from 7-gauge, 0.179-in. (4.6-mm) steel to minimize the number of welds and provide a smooth underside with fewer sharp corners for reduced material buildup.
• Significantly fewer welds on the deck shell to wear or break - it is forged from a single sheet of steel rather than multiple fabrications. An anti-skid step on the deck provides easy machine mounting.
• Extra reliability and long life with cast-iron blade spindle housings.
• Higher blade tip speed than many competitors - approximately 18,500 fpm (5,639 m/min) for more blade cuts per inch mowed.
• A deep-deck design of 5.5 in. (14 cm) delivers excellent airflow so material can be processed quickly and efficiently.
• The wider and higher discharge opening provides even clipping dispersal for an excellent finished appearance in all conditions.
• Quick-release belt covers do not require tools or the removal of a ring clip; just lift one corner of the cover and rotate it slightly to remove.
  • A hole in the deck tab is provided for use of an optional ring clip for extra security, if desired.
  • This makes it quick and easy for you to clean out trash that may collect around the spindle sheave.

Three-year, bumper-to-bumper warranty

E AND M SERIES 3-YEAR, 1200-HOUR BUMPER-TO-BUMPER WARRANTY

An exclusive 2-year, unlimited hour/3-year, 1200-hour (whichever comes first) bumper-to-bumper warranty is standard for all John Deere E and M Series Mowers. The warranty is best in its class and places John Deere at the forefront of commercial mowing. It is also hassle free, with one company handling all of the paperwork.

NOTE: 36 months or 1200 hours, whichever comes first. For the first 24 months, there is no hour limitation.

R SERIES 3-YEAR, 1500-HOUR BUMPER-TO-BUMPER WARRANTY

An exclusive 2-year, unlimited hour/3-year, 1500-hour (whichever comes first) bumper-to-bumper warranty is standard on all John Deere R Series mowers. The warranty is best in the industry and puts John Deere at the forefront of commercial mowing. It is also hassle free, with one company handling all of the paperwork.

Heavy-duty frame provides strength and durability

The durability features of the frame are as follows:

• Heavy-duty, thick-gauge, steel channel mainframe for strength and durability

• Cast I-beam caster arms to handle the beating and pounding professional mowers receive

• Wide-open access for maintenance and cleaning

Durable, hydrostatic drivetrain including cross porting delivers better cooling and provides easy access

The hydrostatic drive features two 13-cc (0.8-cu in.) unitized hydraulic pumps combined with commercial-grade, heavy-duty wheel motors into a single unit.
One pump and one motor drive each wheel on the ZTrak™ E and M Series Mowers. This provides several benefits:

• Exceptional cooling in high-load conditions
• Easy-to-check level and refill hydraulic oil
• Opens up access under the seat

Michelin® X® Tweel® Turf airless radial tire technology for ZTrak™ Mowers eliminates downtime and reduces cost of operation

Mower is easy to service with many accessible components

The engines are easy to service, including changing the oil:

• The engine oil check/fill tube is located at the top of the engine and easy to see and reach.
• No-tools oil drain is convenient to use (Z915E, Z920M).
• A flexible oil drain tube is included to conveniently drain oil into a pan, thus eliminating oil spills (Z930M, Z950M, Z960M, Z930R, Z950R, Z970R).

Available Mulch On Demand™ deck

The Mulch On Demand mower deck delivers unprecedented levels of productivity and versatility to commercial mower operation. With the ability to switch between side discharge and mulching operation with the flip of a lever as the operator mows, keeping most clippings out of landscaping features and where they are wanted is extremely easy.

Key features of the 7-Iron™ PRO Mulch On Demand mower deck:

• Deck can be converted from a wide-open side discharge mode to a fully chambered mulching mode with a single move of a lever.
  • NOTE: Mulch On Demand decks are a balance between a side discharge deck and a side discharge deck with a mulching kit.
• Deck is forged from 7-gauge, 0.179-in. (4.6-mm) steel to minimize the number of welds and provide a smooth underside, with fewer sharp corners, for reduced material buildup.
• Significantly fewer welds on the deck shell to wear or break- it is forged from a single sheet of steel rather than multiple fabrications. Anti-skid step on the deck provides for easy machine mounting.
• Mulch On Demand decks are superior to aftermarket chute blockers due to the movable baffles.
• Higher blade tip speed than many competitors - approximately 18,500 fpm (5,639 m/min) for more blade cuts per inch mowed.
• Rounded corners of the forged deck help distribute impact stress to reduce the potential of damage when the mower contacts trees, rocks, curbs, and other fixed obstacles.
• Deep-deck design of 5.5 in. (14 cm) delivers excellent airflow so material can be processed quickly and efficiently.
• Wider and higher discharge opening provides even clipping dispersal for an excellent finished appearance in all conditions.
• Three 1-in. (2.5 cm) cold-forged spindles are heat-treated for strength without bulk and are supported by ball bearings, providing reliability and performance; spindle housings are ribbed cast iron providing both excellent strength and heat dissipation.
• The front edge is raised above the blade plane to allow even cutting of tall grass and reinforced with a square bar for durability. The front baffle has been redesigned to better manage airflow and control clippings.
• Dual-captured anti-scalp wheels provide deck flotation over even the toughest terrain.
• Three greaseable spindle zerks accessible from the top.
• Quick-release belt covers do not require tools or the removal of a ring clip; just lift one corner of the cover and rotate it slightly to remove.
  • A hole in the deck tab is provided for use of an optional ring clip for extra security, if desired.
  • This makes it quick and easy for you to clean out trash that may collect around the spindle sheave.
• Blade overlap is 1.6 in. (40 mm), nearly 0.79 in. (20 mm) greater than previous decks, to reduce striping between blades.
• Quick-change, cutting-height adjustment.

7-Iron PRO Mulch On Demand mower deck

Enhanced productivity, safety, and trim ability with a FastBack™ PRO rear-discharge mower deck

For professional landscapers and government municipalities requiring rear discharge placement of grass and debris, John Deere FastBack PRO rear-discharge mower decks deliver a commercial zero-turn mowing solution for both gas and diesel machines. Advantages of a rear-discharge mower include:

• Less chance of damage from objects being thrown from the mower deck
• Time savings with the ability to mow closely around fixed objects with either side of the deck
• A cleaner mowing experience by lessening the amount of debris that can blow onto the operator

A rear-discharge mower deck is ideally suited for:

• Schools
• Parks
• Playgrounds
• Traffic areas (city boulevards, roadsides, etc.)
• Areas with long, grassy spots that need to be cut, where you are not as concerned about wide dispersal of grass (park areas, roadsides, etc.)*

*NOTE: Operators maintaining turf outside of target areas are encouraged to evaluate rear-discharge dispersion through a cut quality demonstration to ensure satisfaction.

Compatibility