John Deere Z840A
Power
26 hp
Production
2008-2009
Transmission
Hydrostatic
Weight
1320 lbs (54 inch) [598 kg]
Drive
2WD
From the same series:
Introduction
John Deere Z840A Zero-Turn Mower
The John Deere Z840A is a professional-grade zero-turn mower produced between 2008 and 2009 in Fuquay-Varina, North Carolina, USA. It is designed for high-efficiency lawn maintenance and commercial landscaping applications.
Engine and Power
The mower is powered by a liquid-cooled, vertical-shaft V-twin engine with a displacement of 671 cc (41 cubic inches). It generates a gross power output of 26 hp (19.4 kW). The engine features a dry air cleaner system and requires an oil change every 100 hours of operation. It utilizes an electric starter and operates with a compression ratio of 8.5:1.
Transmission and Drivetrain
The Z840A utilizes a hydrostatic transmission, providing infinite forward and reverse speed control. The system uses Hy-Gard oil, with a capacity of 2.7 liters, and requires an oil change every 500 hours. The mower features two-wheel drive, complemented by power steering for improved operator control.
Mowing and Hydraulic Systems
Equipped with an independent mid-mounted PTO, the unit uses an electro-magnetic clutch for engagement. The mower is compatible with 54-inch or 60-inch mowing decks, allowing for versatile cutting widths depending on site requirements.
Dimensions and Operator Safety
The machine measures 215 cm in length with a wheelbase of 134 cm. Depending on the deck configuration, the mower weighs between 598 kg and 610 kg. For operator safety, it is equipped with a two-post folding Roll-Over Protective Structure (ROPS). It rides on lawn/turf tires, with 13x6.5-6 tires in the front and 24x12-12 tires in the rear.
Electrical System
The electrical system is based on a 12-volt architecture. It includes a battery with 300 cold-cranking amps (CCA) and a charging system capable of delivering 15 amps.
Conclusion
The John Deere Z840A is a robust, hydrostatic-driven zero-turn mower intended for demanding lawn care tasks. Its combination of liquid-cooled power, power steering, and professional-grade build quality makes it a durable tool for operators requiring precision and efficiency in their mowing operations.
Production Information of John Deere, Z840A
- Zero-turn mower
- Built in Fuquay-Varina, North Carolina, USA
| Manufacturer | John Deere |
|---|
Dimension and Tires Information of John Deere, Z840A
| Wheelbase | 53 inches [134 cm] |
|---|---|
| Weight | 1320 lbs (54 inch) [598 kg] |
| Height (Folded ROPS) | 47 inches [119 cm] |
| Length | 85 inches [215 cm] |
| Length(optional) | 1345 lbs (60 inch) [610 kg] |
| Height (ROPS) | 73 inches [185 cm] |
| Lawn/turf front | 13x6.5-6 |
|---|---|
| Lawn/turf rear | 24x12-12 |
Engine Specifications of John Deere, Z840A
- Liquid-cooled vertical-shaft V-Twin
| Exhaust valve clearance | 0.006 inches [0.152 mm] |
|---|---|
| Intake valve clearance | 0.006 inches [0.152 mm] |
| Air cleaner | Dry |
| Oil change | 100 h |
| Starter | Electric |
| Idle RPM | 1700-3600 |
| Displacement | 671 cc [41 ci] |
| Oil capacity | 2.0 qts [1.9 L] |
| Power (gross) | 26 hp [19.4 kW] |
| Compression | 8.5:1 |
| Bore/Stroke | 2.96x3.00 inches [75 x 76 mm] |
| Point gap | 0.013 inches [0.330 mm] |
| Sparkplug gap | 0.030 inches [0.762 mm] |
| Starter volts | 12 |
Transmission Information of John Deere, Z840A
Transmission variants 1
| Type | Hydrostatic |
|---|---|
| Type(optional) | Hy-Gard |
| Oil type | Hy-Gard (J20D) |
| Gears | Infinite forward and reverse |
| Oil change | 500 h |
| Oil capacity | 2.9 qts [2.7 L] |
Mechanical Specs of John Deere, Z840A
- Two-wheel drive
- Power steering
- Two-post folding ROPS.
Power Information of John Deere, Z840A
| Mid PTO | Independent |
|---|---|
| Clutch | Electo-magnetic |
Electrical System of John Deere, Z840A
| Ground | Negative |
|---|---|
| Battery Group | U1L |
| Battery volts | 12 |
| Charging amps | 15 |
| Battery CCA | 300 |
Where it sits
With 26 HP, the John Deere Z840A sits just below Z830A (27 HP) in John Deere's range. Its power puts it in the 93th percentile of 2000s models in our database (1174 machines).
Frequently asked questions
How much horsepower does the John Deere Z840A have?
The John Deere Z840A delivers 26 HP.
What years was the John Deere Z840A produced?
The John Deere Z840A was produced in 2008-2009.
What transmission does the John Deere Z840A use?
The John Deere Z840A uses a Hydrostatic transmission.
How much does the John Deere Z840A weigh?
The John Deere Z840A weighs 1320 lbs (54 inch) [598 kg].
Is the John Deere Z840A 4WD?
The John Deere Z840A is available in 2WD.