2025 John Deere Q800R Series Q850R

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