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Lawn Tractor · 2008Unverified

John Deere Z850A

Name: John Deere Z850A
Brand: John Deere

John Deere Z850A — Z-Trak PRO 800 Series · 31 hp. Reference specifications; pending source verification.

The John Deere Z850A is a lawn tractor with a rated power output of 31 hp, placing it at the higher end of its class in terms of power. It was manufactured from 2008 to 2009 and features a 2-cylinder petrol air-cooled engine, paired with two-wheel drive and a hydrostatic transmission. The operating weight of the Z850A is listed at 1360 to 1439 pounds, and it is suitable for operations on up to 200 acres.

Provisional listing — the headline figure is shown; full specifications are auto-generated and pending verification against published sources.

Rated power

31 hp

Weight

1360 to 1439 pounds

Catalogue coverage

Variants represented

Richest spec table

55 rows

Recorded power

31 hp

Recorded weight

616 kg

Transmissions

hydrostatic

Production years

2008-2009

Verified variants

1 linked source document displayed

Hover a source tag to verify

Overview

ManufacturerJohn DeereReference

Zero-turn mowerReference

Built in Fuquay-Varina, North Carolina, USAReference

Two-wheel driveReference

Power steeringReference

Two-post folding ROPS.Reference

Engine

31HP Kawasaki 852cc 2-cyl gasolineReference

Fuel tank44.5 LReference

Kawasaki FX850VReference

gasolineReference

2-cylinderReference

air-cooled vertical-shaft V-TwinReference

Displacement52 ciReference

Bore/Stroke85 x 76 mmReference

Power (gross)23.1 kWReference

Air cleanerdryReference

Compression8.2:1Reference

Idle RPM1700-3600Reference

StarterelectricReference

Starter volts12Reference

Sparkplug gap0.762 mmReference

Point gap0.305 mmReference

Intake valve clearance0.127 mmReference

Exhaust valve clearance0.127 mmReference

Oil capacity1.9 LReference

Oil change100 hReference

Transmission

hydrostaticReference

TypehydrostaticReference

Gearsinfinite forward and reverseReference

Oil capacity2.7 LReference

Oil typeHy-Gard (J20D)Reference

Oil typeHy-GardReference

Oil change500 hReference

PTO & Hydraulics

Mid PTOindependentReference

Clutchelecto-magneticReference

Dimensions

Wheelbase139 cmReference

Weight1360 to 1439 poundsReference

Front tire13x6.5-6Reference

Rear tire24x12-12Reference

Lawn/turf front13x6.5-6Reference

Lawn/turf rear24x12-12Reference

Length215 cmReference

Height (ROPS)185 cmReference

Height (Folded ROPS)119 cmReference

Weight616 kgReference

Weight652 kgReference

John Deere Z850A attachments

60" mid-mount mower deckReference

72" mid-mount mower deckReference

Electrical

GroundnegativeReference

Charging amps15Reference

Battery CCA300Reference

Battery volts12Reference

Battery GroupU1LReference

Attachment overview

60" mid-mount mower deckReference

72" mid-mount mower deckReference

Values normalized to UK metric units. Every figure is traced to at least one source; verified specs are cross-checked against two or more.

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