Z994R Diesel ZTrak zeroâ€‘turn commercial mower with green frame, yellow seat, and large wheels.

John Deere Z994R

ZTrak™ Zero-Turn Mower

Reduce operating costs while maximizing output with the Z994R Diesel. The 24.7-hp diesel engine provides high torque and fuel savings, while versatile 7-Iron PRO deck options handle large-scale mowing operations.

Product Features:

24.7 hp (18.4 kW) Liquid-Cooled Diesel Engine
Comfortglide™ Suspension On All Seat Options
11.5 U.S. Gallon Fuel Tank (43.5 L)
7-Iron™ PRO Deck

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Features

Reduce operating costs while maximizing output with the Z994R Diesel. The 24.7-hp diesel engine provides high torque and fuel savings, while versatile 7-Iron™ PRO deck options handle large-scale mowing operations.

24.7 hp (18.4 kW) Liquid-Cooled Diesel Engine

Comfortglide™ Suspension On All Seat Options

11.5 U.S. Gallon Fuel Tank (43.5 L)

7-Iron™ PRO Deck

Benefits

7-Iron™ PRO Deck

This mower is equipped with a 7-Iron PRO side-discharge deck stamped from 7-gauge steel, offering superior durability and performance. The deck design provides a high-quality cut with excellent material processing and discharge capabilities.

Top‑down view of zero‑turn mower showing the operator area with a yellow seat, control levers, perforated deck surface, and twin mower housings on either side.

Fastback™ PRO Rear-Discharge Mower Deck

The Fastback™ PRO rear-discharge system improves safety and productivity by minimizing debris throw and allowing closer mowing near obstacles. Ideal for public spaces, it ensures a tidy operation with better debris control around the operator.

Close-up of mower seat with green accent panels and armrests, mounted on a black equipment frame with visible seat adjustment knob, control levers, and roll bar behind.

ComfortGlide™ Seat System

The ComfortGlide™ seat system features adjustable suspension, allowing operators to transition more smoothly over bumps. It can adjust fore and aft, absorbing impacts for reduced operator fatigue during long hours of operation.

Specifications

Height-Of-Cut Increments	0.25 in.
Height-Of-Cut Increments	0.64 cm
Cutting Width	60/72 in.
Cutting Width	152/183 cm
Mower Deck Size	60-in. (152-cm) 7Iron™ PRO side-discharge; 72-in. (183-cm) 7Iron™ PRO side-discharge; 60-in. (152-cm) 7Iron™ PRO Mulch On Demand™; 60-in. (152-cm) FastBack™ PRO rear-discharge; 72-in. (183-cm) FastBack™ PRO rear-discharge
Height-Of-Cut Range	2.54-14 cm
Height-Of-Cut Range	1-5.5 in.
Discharge	Side-discharge, Mulch On Demand™, Rear-discharge
Deck Construction	7-Iron™ PRO: 7-gauge, 0.179-in. (4.6-mm) one-piece forged steel; FastBack™ PRO: 7-gauge, 0.179-in. (4.6-mm) fabricated steel

Filter	Internal, replaceable
Forward Speed	0-11.4 mph mph
Forward Speed	0-18.3 km/h km/h
Transmission	Dual hydrostatic wheel drive TuffTorq heavy-duty ground drive with cross porting for improved cooling
Speed Range	0-18.3 km/h km/h
Speed Direction And Control	Zero turn
Speed Range	0-11.4 mph mph
Hydraulic Capacity	5.9 U.S. qt
Hydraulic Capacity	5.6 L
Reverse Speed	0-7.2 km/h km/h
Reverse Speed	0-4.5 mph mph
Hydraulic Oil Cooler	Fins and fan

Load Rating	4PR
Rear Tires	24x12.00-12 4-ply turf, optional 24x12-12 Michelin Tweel turf tires
Drive Wheels	24x12.00-12 4-ply turf, optional 24x12-12 Michelin Tweel turf tires

Height - With ROPS Up	185 cm
Height - With ROPS Up	73 in.
Weight	1711 - 1810 lb.
Weight	776 - 821 kg
Width - With Chute Down	188, 218 cm
Width - With Chute Down	74, 86 in.
Length	88.6 in. (225 cm)
Width - Rear Discharge	161.3, 192.5 cm
Width - Rear Discharge	63.5, 75.8 in.
Height - With ROPS Down	47 in.
Height - With ROPS Down	119 cm

Caster Wheels	13x6.5-6
Caster Wheel Type	Flat free
Front Anti-Scalp Rollers	LH, RH, Center
Rear Anti-Scalp Rollers	Standard

Park Brake	Internal wet disk integrated in the transmission
Dynamic Braking	Twin motion control levers
Park Brake Actuation	Foot brake engagement also brings steering levers to neutral

Fuel Type	Diesel or Biodiesel (up to B20)
Fuel Tank Capacity	43.5 L
Fuel Tank Capacity	11.5 U.S. gal.
Fuel Tank Switch/Shut-Off Valve	Yes

Displacement	1267 cc
Displacement	77.3 cu in.
Cooling	Liquid
Pre-Cleaner	Yes
Air Cleaner	Heavy-duty canister, dry type with safety element and air-restriction indicator
Crankcase Capacity	3.4 L
Engine Power	Gross at 3,200 rpm, PS: 24.7 hp (18.4 kW)
Crankcase Capacity	3.6 U.S. qt
Oil Filter	Full flow, replaceable, spin-on type
Lubrication	Full pressure
Cylinders	3
Engine Manufacturer/Model	3TNV80F

Date Collected	2023-03-15T00:00:00

Number	3
Blade Tip Speed	Side discharge 7Iron PRO: approximately 17,000 fpm; Rear discharge FastBack PRO: 60-in.: approximately 15,300 fpm; 72-in.: approximately 17,000 fpm
Thickness	0.25 in (0.64 cm)
Length	Varies by deck size

Type	Electric clutch
Drive	V-belt

Operator Presence Starting System	Standard
Battery Voltage	12 V
Hour Meter	Digital multi-function display
Charge System	75 amp
Cold Cranking Amp At 18 Degrees C	600 amp

Rollover Protective Structure (ROPS)	Yes

Warranty	36 months or 1500 hours, whichever comes first, no hour limitation for the first 24 months