Z997R DieselZTrak™ Zero-Turn Mower
- 27.5 kW (37.4 hp)
- Biodiesel (B20) compatible
- Tier 4 compliant
- Three deck options: 152 cm (60 in.) side, 182.9 cm (72 in.) side, and 152 cm (60 in.) rear.

3-cylinder diesel engine
Convenient access to engine
The Z997R is powered by a 3-cylinder, liquid-cooled diesel engine with SAE J1995 gross power of 27.5 kW (36.9 hp, 37.4 PS) at 3000 rpm that meets U.S. Environmental Protection Agency (EPA) Final Tier 4 emission standards. The engine achieves Final Tier 4 compliance by using a diesel oxidation catalyst with diesel particulate filter (DOC/DPF) system.
The three-cylinder diesel engine features low noise levels, superior fuel economy, and a high torque reserve that provides plenty of power and performance.
Key features of the engine include:
Engine air cleaner
The ZTrak™ Z997R Diesel Mower is equipped with a dual-element, canister-style air filter that is easily accessible from the rear of the machine without tools.
Fuel tank and fuel gauge
Diesel fuel cap
The Z997R Diesel ZTrak™ Mower is equipped with a single fuel tank, providing the following:
NOTE: The fill level is 25 mm (1 in.) below the bottom of the filler neck.
Z997R with 183-cm (72-in.) 7Iron PRO Mower Deck
There are two side-discharge mower-deck options available for the Z997M and Z997R Diesel ZTrak™ Mowers:
Cast-iron mower spindle
On every commercial mower deck there are three 25-mm (1-in.) spindles that are cold-forged and heat-treated for strength. Spindles are supported by precision ball bearings that provide great performance and reliability.
PTO shaft drive and cast-iron gearbox (shown on Z997R model)
Mower decks are shaft driven. Benefits of using this type of system include:
Z997M with 152-cm (60 in.) 7Iron PRO Mower Deck
Features include:
Z997R with 183-cm (72-in.) 7Iron PRO Mower Deck
Features include:
| 152-cm (60-in.) Side-Discharge |
183-cm (72-in.) |
|
| Mower type | 7Iron PRO - forged deck | 7Iron PRO - forged deck |
| Mower compatibility: | ||
| Discharge | Side | Side |
| Mulching capability | Optional field-installed kit | Optional field-installed kit |
| Cut-height range | 3.8-12.7 cm (1.5-5 in.) |
3.8-12.7 cm (1.5-5 in.) |
| Cutting width | 152 cm (60 in.) | 183 cm (72 in.) |
| Height-of-cut adjustment | Turning knob with foot assist | Turning knob with foot assist |
| High lift blades: | ||
| Blade length | 53 cm (21 in.) | 64 cm (25 in.) |
| Blade width | 7.6 cm (3 in.) | 7.6 cm (3 in.) |
| Blade thickness | 6.35 mm (0.25 in.) | 6.35 mm (0.25 in.) |
| Blade tip speed | Approximately 5,486 m/min (18,000 fpm) |
Approximately 5,486 m/min (18,000 fpm) |
| Number of blades | Three | Three |
| Blade spindles: | ||
| Bearings | Grade=ABEC-1 | Grade=ABEC-1 |
| Spindles | Cold-forged and heat-treated | Cold-forged and heat-treated |
| Spindle housings | Ductile cast-iron | Ductile cast-iron |
| Wheels: | ||
| Front anti-scalp rollers | Standard | Standard |
| Rear anti-scalp rollers | Standard | Standard |
| Deck construction | One-piece forged steel | One-piece forged steel |
| Deck thickness | 7-gauge steel 4.5 mm (0.179 in.) |
7-gauge steel |
|
152-cm (60-in.) Rear-Discharge Mower Deck
183-cm (72-in.) 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:
A rear-discharge mower deck is ideally suited for:
*NOTE: Operators maintaining turf outside of target areas are encouraged to evaluate rear-discharge dispersion through a cut quality demonstration to ensure satisfaction.
Mower deck |
Z930M |
Z950M |
Z960M |
Z950R |
Z970R |
Z994R |
Z997M | Z997R |
152-cm (60-in.) FastBack PRO rear- discharge |
x |
|
x |
x |
|
x |
x |
|
183-cm (72-in.) FastBack PRO rear- discharge |
|
X |
x |
|
x |
x |
x |
x |
A large volume of material can be thoroughly processed with the deep-deck design:
Centre deck rollers and left wheel
Right-rear deck wheel
The deck is suspended from and supported by the machine to provide a level cut. Mower deck wheels and rollers help smooth out the mowing job in uneven conditions and reduce the chance of scalping the lawn:
Strong, reinforced deck
Right trim-side wear guard
These rear-discharge decks are designed to stand up to heavy-duty commercial use:
Serrated-tread step
Extra convenience and security are provided by a serrated surface that is welded to the top left corner of the deck, providing additional traction when entering and exiting the operator station.
Drive shaft and cast-iron gearbox (shown on similar 7Iron PRO Mower Deck)
Cast-iron blade-spindle housing
Durability is designed into the mower blade drive system:
Extra reliability and long life are provided by cast-iron blade spindle housings:
Quick-release belt cover
Cast-iron spindle housing assembly
Minimal service requirements increase uptime:
Z998R trimming with centre and a wing mower deck
The Z997R and Z998R Diesel ZTrak™ Mowers allow operators to be more productive by locating frequently used controls at the operator’s fingertips.
ZTrak Mowers include large, ergonomically angled control levers with specially padded grips and built-in electronic controls.
To reduce operator fatigue and tailor control sensitivity, the control levers operate the hydrostatic transmissions electrically. These drive-by-wire controls reduce effort needed to operate the handles and enable features like LoadMatch™, which can slow the mower under heavy cutting load, providing consistent cut quality.
Z998R comfort and convenience controls
Standard comfort and convenience handles are built into the steering levers.
Z997R - The Z997R has three steering-lever buttons. The left steering lever has a button (A) to raise the mower deck. The lift button can be pressed momentarily to raise the deck over an obstacle. The left and right steering levers each have a yellow PTO button (B). Press both buttons at the same time to engage the PTO. Press either button to shut off the PTO.
Z998R - The Z998R has five steering-lever buttons. The Z998R includes the same buttons as the Z997R model, plus there is a button (C) on each lever to raise or lower that side’s E-Cut Wing Mower Deck. Similar to a garage door, each deck lifts or lowers when its button is pressed. On the Z998R model, when the deck raise button (A) is pressed all three decks are raised to clear an obstacle.
The blades on the wing decks automatically stop when the decks are raised. If the PTO is engaged, the wing decks automatically start when the wing mower decks are lowered.
Park brake in disengaged operating position
Park brake in engaged outward position
The integrated park brake is automatically applied when steering levers are stowed outward and disengaged when the steering control levers are placed into the operating position.
Switch controls
The key switch and switches for auto throttle (A), centre deck control (B), and transport (C) are located near the touchscreen display.
Auto throttle - When the PTO is off, the auto-throttle switch is used to adjust engine speed. Low speed is used when manoeuvring the mower in tight locations like loading on a trailer. High speed is used for transport. When the PTO is engaged, the engine runs at full throttle, and the auto-throttle switch is used to limit maximum mowing speed. The low-speed position improves precision while trimming and high speed enables full mowing speed in open areas.
Centre deck control - Used to shut off the centre mower deck with the PTO engaged; useful when the operator wants to mow with one or both wing decks without the centre deck creating noise and stirring dust.
Transport switch - Raises all mower decks to transport position or lowers them to mow at full width.
Color LED touchscreen display
The Z997R and Z998R Diesel ZTrak™ Mowers are equipped with an advanced 4.3-in. (10.9-cm) full-color LED touchscreen, which provides unprecedented control and information.
Similar to mobile device screens, the touchscreen contains multi-colored pixels. Unlike segment-based displays, a touchscreen can be extensively customized, which enables software-defined menus and supports multiple languages including English, Spanish, German, French, and Italian. The touchscreen is bright so it can be read in sunlight and backlit for low-light conditions.
The touchscreen is designed and tested to withstand the elements. It is IP66 rated, indicating it is dust-tight and protected from water.
The touchscreen provides the operator with:
The touchscreen can be used to adjust machine settings:
The touchscreen can also be used for diagnostics.
The Z997R and Z998R Mowers are factory-configured with a single full-access user profile. Fleet operators may choose to tailor menu access to the unique needs of owners, crew supervisors, and operators. Each user is assigned a PIN that may be restricted from machine settings and diagnostic menus.
A mower can have up to three owner profiles. Owner profiles have access to the following settings:
A mower can have up to 100 unique operator profiles, each with their own PIN that remembers their unique language and machine settings. Each operator-profile setting has access to the display settings menu. Based on the owner’s permissions, each operator may be given access to, or restricted from, accessing the remaining menus. For example, an owner may give crew supervisors and experienced operators access to more settings than less experienced operators.
High-back, air-suspension seat
The Z997R and Z998R Diesel ZTrak™ Mowers include a standard air-suspension seat, which provides maximum operator comfort across a wide range of operator traits.
Key features and adjustments:
Air-suspension seat adjustment
A-Armrest height
B-Lumbar (on rear of seat)
C-Fore-aft slide
D-Fore-aft suspension
E-Air-suspension weight and height
F-Damper
G-Back angle tilt
Centre deck pin map height-of-cut adjustment
Wing deck height-of-cut adjustments
The Diesel ZTrak™ Mowers have an intuitive and ergonomically placed pin map height-of-cut system. The system provides 3.8- to 12.7-cm (1- to 5.5-in.) cutting heights in 0.64-cm (0.25-in.) increments.
On a Z998R ZTrak Mower, keeping the cut height of the wing decks matching the centre deck is fast and clean, and does not involve relocating greasy spacers.
The front wing deck castor wheels use a turn-dial system (A). Simply remove the cap and magnetic locking key and turn the dial. The front castor shaft is engraved with height-of-cut markings that indicate the cut height.
The rear mower deck wheels use a spring-locking pin (B). Simply move the pin to adjust the height. The shaft is also engraved with height-of-cut markings.
The entire system is designed to be adjusted without tools in the field. In the shop, a ratchet or power driver can be used to speed adjustments.
Comfort and convenience handles (shown on Z998R)
The standard comfort and convenience handles include built-in electronic controls to raise or lower the mower deck.
Rear hood open to access service points (shown on Z997M)
Rear hood open to access service points (shown on Z997M)
The service points of Diesel ZTrak™ Mowers are easy to see and access:
Hood latch
Hood opened for access to service points
Hood has one central over-centre type latch.
The hood pivots to make the hood easier to remove and install for ease of servicing the engine.
Z997M radiator screen
To reduce debris ingestion, the cooling-air intake and radiator of Diesel ZTrak Mowers are located in a clean location in front of the engine. Warm air exits the rear of the mower away from the operator. The radiator screen can be removed for cleaning and to provide access to the radiator, oil, and fuel coolers.
Flip-up foot panel (shown on Z998R)
Quick-release belt cover (shown on Z998R)
Minimal mower deck drive maintenance requirements increase uptime:
Maintenance label
Diesel ZTrak Mowers come with a maintenance label that is conveniently located on the underside of the hood. The label is written on English and Spanish languages and includes daily service check points, approximate fluid capacities, and tyre pressures.
QR code label
To speed access to owner information web pages, a QR code is printed onto a product identification number (PIN) label located under the right steering lever. The owner information web pages that include links to:
Jack kit and jack installed
Jack in storage position
The front frame of the Z997M and Z997R Diesel ZTrak Mowers are pre-drilled to accept the optional jack kit and jack:
Z960M ZTrak™ Mower
Z950R ZTrak Mower
An exclusive 2-year, unlimited hour/3-year, 1200-hour (whichever comes first) bumper-to-bumper warranty is standard for all John Deere 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.
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.
NOTE: 36 months or 1500 hours, whichever comes first. For the first 24 months, there is no hour limitation.
Z997M with 152-cm (60-in.) 7Iron™ PRO Mower Deck
Z998R with 254-cm (100-in.) FastBack™ PRO Mower Deck
The durability features of the frame are as follows:
Rear bumper shown on Z997M
A rear bumper is provided on the machine for rear protection. The bumper is made of compression moulded ultra-high molecular weight (UHMW) polyethylene plastic which provides abrasion resistance to protect the machine and the property.
Illustration of Kanzaki dual-unitized hydraulic pump
The hydrostatic drive features a Kanzaki® DUP 17SB dual-unitized hydraulic pump. This dual pump, in a single housing, provides longer life and less maintenance than competitive units.
The pump features a shaft-driven fan for added cooling and longer component life. The swash-plate bearings are roller-type versus ball-type bearings for a longer overall pump life.
Illustration of transmission layout
The transmission module integrates the dual pumps and steering valves in one single housing. The pump is shaft-driven from the engine. An isolator ensures reduced vibration between the engine and the transmission module.
Two wheel motors are installed on the chassis to directly transfer power to both wheels. Commercial-grade, heavy-duty Hydro-Gear HGM18L 292-cc (17.8-cu in.) wheel motors are also important components of the overall drive system efficiency.
Rigid hydraulic lines are installed between the hydraulic module and wheel motors for long life.
An internal wet disk park brake is integrated in the transmission.
Kanzaki is a trademark of Kanzaki Kokyukoki Manufacturing Company. Hydro-Gear is a trademark of Hydro-Gear Limited Partnership.
Z997R with 183-cm (72-in.) 7Iron™ PRO Mower Deck
Z998R with 254-cm (100-in.) FastBack™ PRO Mower Deck
The spacious operator station has been designed for comfort, visibility, and ease of use:
The ROPS and seat belt work in conjunction to provide a protective zone around the operator:
ROPS in upright position
ROPS in folded position
Foldable ROPS and a retractable seat belt are standard equipment:
The retractable seat belt is within easy reach of the operator for use when operating with the ROPS up.
ROPS are foldable to allow trimming, such as under trees or bushes:
The folding ROPS performance is certified at the date of manufacture according to ISO 21299.
ROPS T-handle
The ROPS on Diesel ZTrak™ Mowers is equipped with an ergonomic T-handle. Unlike long-pin designs, the large T-handle provides leverage to release the pin and can be turned 90 degrees to keep the pin retracted while the ROPS is repositioned. Springs snap the T-handle pin into place allowing the operator to use both hands to move the ROPS.
| ROPS position | Height at top of ROPS |
| Full height | 196 cm (77.3 in.) |
| Down | 129 cm (50.9 in.) |
John Deere commercial mowers are evaluated by the manufacturer (John Deere Turf Care) and conform to American National Standards Institute (ANSI) / Outdoor Power Equipment Institute (OPEI) 5395-1 and 5395-3 safety requirements for combustion-engine-powered lawnmowers.
LED work lights (shown with jack kit)
BUC11975 LED work lights are available as a field installed attachment.
LED beacon light
BUC11406 LED beacon light is available as a field installed attachment. The beacon light is short to avoid damage.
TerrainCut™ Front and Wide-Area Mowers
ZTrak, QuikTrak, and commercial walk-behind Mowers
The John Deere Operations Center enables professional landscape contractors (PLC) and government agencies to manage their equipment more efficiently, increase productivity, and reduce labor costs.
By connecting their entire fleet, Operations Center becomes the one place for fleet operators to manage their equipment. Mowers, utility vehicles, compact tractors, construction equipment, even trucks and string trimmers can be connected and managed by the Operations Center.
JDLink M Modem
A JDLink M Modem connects a piece of equipment to the John Deere Operations Center enabling fleet operators to manage their equipment from Operations Center.
A JDLink M Modem is standard equipment on:
JDLink M Modem installation attachments are available to field install a modem on:
See compatibility section for serial number breaks and requirements.
A JDLink M modem can also be field installed on older models, competitive equipment, and trucks. See the JDLink hardware compatibility guide for more information and supporting DTAC solutions.
John Deere Operations Center is available on PC, Apple iOS, and Android mobile apps
The John Deere Operations Center brings equipment location, utilization, and maintenance planning together enabling fleet operators to make better-informed decisions across crews, jobs, and properties.
All connected equipment provides GPS location, equipment status, GPS speed, geofencing alerts, curfew alerts, key switch hours, and maintenance planning. The JDLink M Modem reports additional machine data on many models of late-model equipment. See chart below for commercial mowers.
| Models | Engine hours |
Fuel level | Fuel consumption |
Diagnostic trouble codes |
Service Advisor Remote |
| Z700 ZTrak Mowers | Key | --- | --- | --- | --- |
| Model year 2024 to 2026 Z900 ZTrak Mowers with carbureted engines and Z994R diesel |
Key | --- | --- | --- | --- |
| Model year 2027 and newer Z900 ZTrak Mowers with carbureted engines and Z994R diesel |
Sync | X | --- | X | X |
| Model year 2026 and newer Z900 ZTrak Mowers with EFI engines |
Sync | X | X | X | X |
| Model year 2021 to 2025 Z997R ZTrak Mowers | Sync | --- | X | X | X |
| Model year 2026 and newer Z997M, Z997R, and Z998R ZTrak Mowers |
Sync | X | X | X | X |
| E Series QuikTrak Mowers | Key | --- | --- | --- | --- |
| Q820M, Q850M, and Q850R QuikTrak Mowers | Sync | X | --- | X | --- |
| Q865R EFI QuikTrak Mowers | Sync | X | X | X | X |
| R Series commercial walk-behind mowers | Key | --- | --- | --- | --- |
| 1550 TerrainCut Front Mowers | Key | --- | --- | --- | --- |
| 1570, 1575, 1580, and 1585 TerrainCut Front Mowers | Key | --- | X | X | X |
| 1600 TerrainCut Wide-Area Mowers | Key | --- | X | X | X |
Operations Center map displaying past locations of a mower
Mobile view of Operations Center map showing GPS speed
The JDLink M Modem regularly transmits the location, utilization, and hours of operation of each piece of equipment in the fleet so it can be monitored in Operations Center.
The modem regularly transmits the equipment’s engine hours to inform maintenance planning and balance use.
Operations Center Maintenance Planner
Factory or custom maintenance plans can be established in Operations Center. Maintenance alerts are sent when engine hours reach maintenance intervals.
Operations Center Machine Analyzer Tool
On select products, the modem reports the time the equipment spent transporting, idling, and working. The Operations Center’s Machine Analyzer tool reports usage data which allows you to analyze operator behavior, identify causes of low productivity, and initiate corrective actions.
On select products, the modem reports the fuel level so you can dispatch fuel before your fleet runs low. Also, on select products an analysis of fuel consumption is available in the Operations Center Machine Analyzer Tool. Measuring fuel consumption enables you to address causes of excessive fuel use.
On select products, the modem transmits the trouble codes generated by the mower’s control units to the Operations Center. Addressing DTCs can reduce downtime and repair costs. For example, a low-engine oil pressure DTC can indicate an engine is low on oil. Addressing the issue can prevent costly downtime and repairs.
To help address issues quickly, when a DTC is generated, the Operations Center can display a push notification on the mobile app and send an email. Operations Center can also be configured to limit notifications to stop-level severity DTCs.
On select products, John Deere dealers can perform remote diagnostics, software programming, and adjustments without the cost of a service call.
A JDLink M Modem is standard equipment on:
A JDLink M Modem can be field installed on the commercial mowing products listed below. Field installation attachments simplify modem installation, and include brackets, mounting hardware, harness, and instructions. Field installation requires a JDLink M Modem to be ordered separately. The field installation attachments include a wiring harness therefore the modem should be ordered with the less harness option code.
Model |
Compatible model years |
Installation attachments |
Z700 ZTrak Mowers |
2024 and newer (SN 080,001-) |
BUC12218 and AUC23405 |
Gasoline-powered Z900 ZTrak Mowers |
2024 to 2026 (SN 130,001-170,000) |
BUC12218 and AUC23405 |
Gasoline-powered Z900 ZTrak Mowers |
2027 and newer (SN 170,001-) |
BUC11218* |
Z994R ZTrak Mowers |
2024 to 2026 (SN 070,001-110,000) |
BUC12218 and AUC23405 |
Z994R ZTrak Mowers |
2027 and newer (SN 110,001-) |
BUC12218* |
Z997R ZTrak Mowers |
2021 to 2025 (SN 070,001-130,000) |
BUC11908 |
QuikTrak Mowers |
2024 and newer (SN 010,001-) |
BUC11744 |
R Series commercial walk-behind mowers |
2025 and newer (SN 070,001-) |
BUC11918 |
TerrainCut Front Mowers |
2022 to 2023 (SN 080,001-110,000) |
BUC11797 |
1600 TerrainCut Wide-Area Mowers |
2023 (SN 680,001-690,000) |
BUC11797 |
*Model year 2027 and newer gasoline-powered Z900 and Z994R ZTrak Mowers include a modem wiring harness in base equipment. Modem installation on these models require a BUC12218 modem mounting plate.
Michelin X Tweel Turf on Z997M
Flat-free rear tyre on ZTrak™ Mower
John Deere leads the commercial zero-turn mower industry with use of the Michelin X Tweel Turf technology.
Michelin is a world leader in tyre manufacturing and technology. This airless radial tyre solution is an industry first for John Deere, which provides a smoother ride for the operator and additional advantages to John Deere owners.
Advantages of the Michelin X Tweel Turf include:
Michelin X Tweel Turf
Heavy-duty construction provides the ultimate in performance and reliable operation:
Run flat front castor wheel
Pneumatic rear drive wheel
The Z997M and Z997R ZTrak Mowers are equipped with 15x6-6 flat free front castor tyres that provide:
A choice of rear wheel options is available for factory installation:
Michelin, X, and Tweel are trademarks of Compagnie Générale des Etablissements Michelin SCA.
Product features are based on published information at the time of publication. Product features are subject to change without notice. Contact your local John Deere dealer for more information.