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John Deere Q850M
Q850M
Stand-On Mowers
Overview:
Conquer large and complex terrains with the Q850M QuikTrak™. Superior maneuverability and robust performance help professional landscapers work efficiently while achieving precise, quality results every time.
- 27-hp (20.1-kW)
- 54- and 60-in. 7Iron™ PRO Decks
- Mow Up to 10 mph
- Warranty: 36 Months or 1200 Hours, Whichever Comes First; First 24 Months, No Hour Limitation
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Features
Integrated Transaxles

Tuff Torq® TZT13 integrated transaxles combine commercial-grade hydraulic pump and wheel motor into a single housing for each side. This design reduces potential leak points, providing exceptional cooling and durable performance.
Compact and Easy to Maintain

Rotate open the engine guard for easy access to engine and top of mower deck to clean or complete maintenance. It doesn't stop there. Without tools, the rear leaning pad and service panel can be removed, and a flip-down lower service panel opens up access to key components. Even the replacing of a drive belt does not require getting under the machine.
Spacious Operator Platform

The M Series QuikTrak™ mowers offer a spacious operator platform, featuring a wide foot platform that positions operator into the leaning pad. Designed for operator comfort and stability, the spring-loaded platform smooths out bumps and reduces operator fatigue.
Specifications
Mower Decks
| Mower Deck Size | 54-in. (137-cm) 7Iron™ PRO side-discharge 60-in. (152-cm) 7Iron™ PRO side-discharge |
| Deck Construction | 7-Iron™ PRO: one-piece forged steel |
| Deck Thickness | 7 gauge / 0.180 in. / 4.6 mm |
| Discharge | Side |
| Height-Of-Cut Range | 1.5-5 in. |
| Height-Of-Cut Range | 3.8-12.7 cm |
| Height-Of-Cut Increments | 0.25 in. |
| Height-Of-Cut Increments | 0.64 cm |
| Cutting Width | 54/60 in. |
| Cutting Width | 137/152 cm |
Drivetrain
| Transmission | Tuff Torq TZT13 IHT |
| Hydraulic Pumps | 0.79 cu in. / 13 cc |
| Wheel Motors | 13 cu in. / 213 cc |
| Speed Range | 0-10 mph |
| Speed Range | 0-16.1 km/h |
| Forward Speed | 0-10 mph |
| Forward Speed | 0-16.1 km/h |
| Reverse Speed | 0-5 mph |
| Reverse Speed | 0-8 km/h |
| Speed Direction And Control | Twin hand-controlled levers |
| Hydraulic Capacity | 6 U.S. qt |
| Hydraulic Capacity | 5.7 L |
| Hydraulic Oil Cooler | Two 8.5 in. (22 cm) fans |
| Filter | Two internal and replaceable |
Wheels
| Caster Wheel Type | Flat free |
| Caster Wheels | 13x5-6 |
| Front Anti-Scalp Rollers | RH, center, LH |
Brakes
| Dynamic Braking | Dual hand-controlled levers |
| Park Brake | Internal wet disk |
| Park Brake Actuation | Hand lever |
Fuel System
| Fuel Type | Gasoline |
| Fuel Tank Capacity | 12 U.S. gal. |
| Fuel Tank Capacity | 45.3 L |
| Fuel Tank Switch/Shut-Off Valve | No |
Engine
| Engine Manufacturer/Model | FX850V |
| Engine Power | Gross at 3,600 rpm: 27 hp / 20.1 kW |
| Displacement | 52 cu in. |
| Displacement | 852 cc |
| Cylinders | 2 |
| Crankcase Capacity | 2.4 U.S. qt |
| Crankcase Capacity | 2.3 L |
| Oil Filter | Full flow, replaceable |
| Lubrication | Full pressure |
| Cooling | Forced air, with integrated clean out ports and oil cooler |
| Air Cleaner | Heavy-duty canister type with safety element |
Dimensions
| Length | Foot platform up, 67.25 in. / 171 cm Foot platform down, 72 in. / 183 cm |
| Width - With Chute Down | 74 in. |
| Width - With Chute Down | 188 cm |
| Weight | 1120 lb. |
| Weight | 508 kg |
Tires
| Drive Wheels | 22x12-12 pneumatic / 22x11N12 Tweel |
| Load Rating | 4 PR |
Blades
| Thickness | 0.25 in. / 0.64 cm |
| Blade Tip Speed | Approximately 18,000 fpm / 5486 m/min |
| Number | 3 |
PTO
| Type | Electro-magnetic with brake, 200 lb-ft / 271 Nm |
| Drive | V-belt |
Electrical System
| Charge System | 20 amp |
| Battery Voltage | 12 V |
| Cold Cranking Amp | 300 amp |
| 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 |
| Operator Presence Starting System | Yes |
Buyer's note
| Warranty | 36 months or 1200 hours, whichever comes first. First 24 months, no hour limitation. |
Contact Us
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325 Walt Messick Road
Harrington, Delaware 19952
Phone: (302) 398-3729
Toll Free: (800) 237-1272