John Deere Z994R Diesel Mower Specs

Additional Information

John Deere Z994R Diesel Mower Additional Information specifications
Date Collected	2026-08-03T00:00:00 — Starting 2026 Model Year

John Deere Z994R Diesel Mower Blades specifications
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 — Starting 2026 Model Year
Length	Varies by deck size — Starting 2026 Model Year
Number	3 — Starting 2026 Model Year
Thickness	0.25 in (0.64 cm) — Starting 2026 Model Year

John Deere Z994R Diesel Mower Brakes specifications
Dynamic Braking	Twin motion control levers — Starting 2026 Model Year
Park Brake	Internal wet disk integrated in the transmission — Starting 2026 Model Year
Park Brake Actuation	Foot brake engagement also brings steering levers to neutral — Starting 2026 Model Year

John Deere Z994R Diesel Mower Buyer's note specifications
Warranty	36 months or 1500 hours, whichever comes first, no hour limitation for the first 24 months — Starting 2026 Model Year

John Deere Z994R Diesel Mower Drivetrain specifications
Filter	Internal, replaceable — Starting 2026 Model Year
Forward Speed	0-11.4 mph — Starting 2026 Model Year
Hydraulic Capacity	5.9 qt — Starting 2026 Model Year
Hydraulic Oil Cooler	Fins and fan — Starting 2026 Model Year
Reverse Speed	0-4.5 mph — Starting 2026 Model Year
Speed Direction And Control	Zero turn — Starting 2026 Model Year
Speed Range	0-11.4 mph — Starting 2026 Model Year
Transmission	Dual hydrostatic wheel drive TuffTorq heavy-duty ground drive with cross porting for improved cooling — Starting 2026 Model Year

John Deere Z994R Diesel Mower Electrical System specifications
Battery Voltage	12.0 v — Starting 2026 Model Year
Charge System	75.0 amp — Starting 2026 Model Year
Cold Cranking Amp At 18 Degrees C	600.0 amp — Starting 2026 Model Year
Hour Meter	Display panel including hour meter, fuel level, engine speed, system voltage, low engine oil pressure indicator, starting interlock indicators (PTO, operator presence, park brake), caution warning, stop warning, and on-board diagnostics — Starting 2026 Model Year
Operator Presence Starting System	Standard — Starting 2026 Model Year

John Deere Z994R Diesel Mower Engine specifications
Air Cleaner	Heavy-duty canister, dry type with safety element and air-restriction indicator — Starting 2026 Model Year
Cooling	Liquid — Starting 2026 Model Year
Crankcase Capacity	3.6 qt — Starting 2026 Model Year
Cylinders	3 — Starting 2026 Model Year
Displacement	77.30 cu in (1,266.72 cu cm) — Starting 2026 Model Year
Engine Manufacturer/Model	3TNV80F — Starting 2026 Model Year
Engine Power	Gross at 3,200 rpm, PS: 24.7 hp (18.4 kW) — Starting 2026 Model Year
Lubrication	Full pressure — Starting 2026 Model Year
Oil Filter	Full flow, replaceable, spin-on type — Starting 2026 Model Year
Pre-Cleaner	Yes — Starting 2026 Model Year

John Deere Z994R Diesel Mower Fuel System specifications
Fuel Tank Capacity	11.50 gal (43.53 l) — Starting 2026 Model Year
Fuel Tank Switch/Shut-Off Valve	Yes — Starting 2026 Model Year
Fuel Type	Diesel or Biodiesel (up to B20) — Starting 2026 Model Year

John Deere Z994R Diesel Mower Key Specs specifications
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 — Starting 2026 Model Year
Caster Wheels	13x6.5-6 — Starting 2026 Model Year
Drive Wheels	24x12.00-12 4-ply turf, optional 24x12-12 Michelin Tweel turf tires — Starting 2026 Model Year
Engine Manufacturer/Model	3TNV80F — Starting 2026 Model Year
Engine Power	Gross at 3,200 rpm, PS: 24.7 hp (18.4 kW) — Starting 2026 Model Year
Fuel Tank Capacity	11.50 gal (43.53 l) — Starting 2026 Model Year
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 — Starting 2026 Model Year
Speed Range	0-11.4 mph — Starting 2026 Model Year
Transmission	Dual hydrostatic wheel drive TuffTorq heavy-duty ground drive with cross porting for improved cooling — Starting 2026 Model Year
Warranty	36 months or 1500 hours, whichever comes first, no hour limitation for the first 24 months — Starting 2026 Model Year

John Deere Z994R Diesel Mower Mower Decks specifications
Cutting Width	60/72 in. — Starting 2026 Model Year
Deck Construction	7Iron™ 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 — Starting 2026 Model Year
Discharge	Side-discharge, Mulch On Demand™, Rear-discharge — Starting 2026 Model Year
Height-Of-Cut Increments	0.25 in (0.63 cm) — Starting 2026 Model Year
Height-Of-Cut Range	1-5.5 in. — Starting 2026 Model Year
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 — Starting 2026 Model Year

John Deere Z994R Diesel Mower Operation specifications
Rollover Protective Structure (ROPS)	Yes — Starting 2026 Model Year

John Deere Z994R Diesel Mower PTO specifications
Drive	V-belt — Starting 2026 Model Year
Type	Electric clutch — Starting 2026 Model Year

John Deere Z994R Diesel Mower Tires specifications
Drive Wheels	24x12.00-12 4-ply turf, optional 24x12-12 Michelin Tweel turf tires — Starting 2026 Model Year
Load Rating	4PR — Starting 2026 Model Year
Rear Tires	24x12.00-12 4-ply turf, optional 24x12-12 Michelin Tweel turf tires — Starting 2026 Model Year

John Deere Z994R Diesel Mower Wheels specifications
Caster Wheel Type	Flat free — Starting 2026 Model Year
Caster Wheels	13x6.5-6 — Starting 2026 Model Year
Front Anti-Scalp Rollers	LH, RH, Center — Starting 2026 Model Year
Rear Anti-Scalp Rollers	Standard — Starting 2026 Model Year