2025 John Deere Q800R Series Q850R

Information

2025 John Deere Q800R Series Q850R

QuikTrak™ Stand-On Mower

27-hp (20.1-kW)

54” and 60” 7Iron™ PRO decks

Mow up to 12 mph

Warranty: 36 months or 1500 hours, which ever comes first; First 24 months, no hour limitation

Features may include:

  • Commercial-quality engine is reliable and provides excellent performance and life
  • Commercial-quality V-twin air-cooled engines power the QuikTrak™ Mowers:
  • FX730V 23.5 hp (17.5 kW) gross at 3600 rpm (Q820M)
  • FX850V 27 hp (20.1 kW) gross at 3600 rpm (Q850M and Q850R)
  • Both engines feature:
  • Overhead valve design
  • More horsepower and torque per cubic inch of displacement
  • Better fuel efficiency
  • Full-pressure lubrication with full-flow filter
  • Reduces engine wear by ensuring proper lubrication, even when operating on hillsides or uneven terrain
  • Filtered oil reduces risk of contamination for increased engine life
  • V-twin design
  • Fast starts
  • Smooth operation
  • Vertical shaft for efficient transfer of power to the transmission
  • Standard dual-element, canister-type, dry replaceable, heavy-duty air cleaner with secondary safety element
  • Fuel pump for consistent and reliable fuel supply to the carburetor
  • Air-cooled engine design for minimum maintenance and maximum reliability
  • Standard cleanout ports for easy access to remove debris collecting in cooling fins
  • Aluminum cylinder block
  • Effectively dissipates heat
  • Lightweight and strong construction
  • Extends engine life due to elimination of debilitating engine temperatures
  • The engine is equipped with a replaceable oil filter for longer engine life.
  • Engine oil fill/check tube, oil filter, and oil drain hose are located on the front of the engine where they are easy to access.
  • Dual 6-U.S. gal. (22.7-L) fuel tanks provide 12 U.S. gal. (45.3 L) of fuel storage that eliminates mid-day refueling and the hassle of gas cans.
  • The fuel tanks are:
  • Designed to complement the mower’s styling
  • Molded with a low and narrow profile to avoid contact with overhanging obstacles like mailboxes
  • Placed so the operator has visibility of the rear tires and mower deck
  • Located low to improve stability
  • Balanced so the center of gravity doesn’t shift with the fuel level
  • Equipped with wide openings that simplify fueling and reduce spills
  • Fitted with sealed fuel caps that reduce vapor loss and a tether that prevent misplacing the cap

Photos

Highlights

  • Ashmore, Illinois
  • 2025
  • John Deere
  • Q800R Series Q850R
  • Tuff Torq TZT13 IHT
  • Available
  • With chute down: 173, 188 cm ( 68, 74 in.)
  • 124 cm (49 in) | of cut range: Increments 0.64 cm - 3.8-12.7 cm (0.25 in - 1.5-5 in)

Specifications

  • 2025
  • John Deere
  • Q800R Series
  • Q850R
  • Stand-On
  • Model: FX850V
  • Gross at 3,600 rpm: 20.1 kW (27 hp)
  • 852 cc (52.0 cu in.)
  • Electro-magnetic with brake 271 Nm (200 lb-ft)
  • Two, V-twin
  • Forced air, with integrated clean out ports and oil cooler
  • Heavy-duty canister type with safety element
  • Gasoline
  • Tuff Torq TZT13 IHT
  • V-belt
  • Dual hand-controlled levers
  • Internal wet disk | Hand lever
  • 24x12-12 pneumatic 24x12N12 Tweel | Caster wheel: 13x5-6
  • Charge system: At 3,600 rpm 20A | Battery voltage: 12 V | Cold cranking amp: 300 CCA
  • Blade tip speed Approximately: 5486 m/min /(18,000 fpm) | Speed range: 0-19.3 km/h (0-12 mph) | Forward Infinite: 0-19.3 km/h (0-12 mph) | Reverse Infinite: 0-9.7 km/h (0-6 mph)
  • Full flow, replaceable
  • Full pressure
  • Mower deck size: 137-cm (54-in. ) 7Iron™ PRO side-discharge / 60-in. (152-cm) 7Iron™ PRO side-discharge | Hydraulic pump: 13 cc (0.79 cu in) | Wheel motors: 213 cc (13 cu in) | hydraulic air cooler: Two 8.5 in. (22 cm) fans | Blade thickness: 0.64 cm (0.25 in)
  • 137-cm (54-in. ) 7Iron™ PRO side-discharge | 152-cm (60-in) 7Iron™ PRO side-discharge
  • With chute down: 173, 188 cm ( 68, 74 in.)
  • Foot platform up, 183 cm (70 in) / Foot platform down 190 cm (74.75 in)
  • 124 cm (49 in) | of cut range: Increments 0.64 cm - 3.8-12.7 cm (0.25 in - 1.5-5 in)
  • 7 gauge: 4.6 mm (0.180 in)
  • 45.3 L (12 U.S. gal)
  • 5.7 L (6.0 U.S qt)
  • Speed and direction control Twin hand-controlled levers | Blades: Three
  • 515 kg (1135 lb) (54 in.) | 524 kg (1155 lb) (60 in.)
  • 7-Iron™ PRO: one-piece forged steel
  • 36 months or 1500 hours, whichever comes first. First 24 months, no hour limitation.