Exmark Quest S-Series 50" (QTS691KA502)

  • 23 HP Kawasaki
  • 50" UltraCut Fabricated Deck
  • Mow up to 2.5 acres/hr
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Exmark Quest S-Series 50"
Model #:

Enjoy all the commercial features with the premium Quest S-Series residential zero turn mower. With larger transmission and heavier fabricated mower deck the QST691KA502 hold hills better, mows faster, and is more durable to surpass all expectation of a residential zero turn mower.

Other standard features include a two tone padded seat with armrests, foot assist deck lift, larger front and rear tires for added comfort and speeds up to 7mph for 3 acre cutting time just under 1 hour!

3 Year Homeowner Warranty
Kawasaki FR Engine  691CC Kawasaki V-Twin FR Series Engine
  • Overheads valves improve power and fuel efficiency
  • Electronic spark ignition provides reliable starting
  • 2.9 gallon fuel tank means less time filling gas tank
Quest Deck Spindles
50" UltraCut Series 2 Mower Deck (3 Blade)
  • 1.5" - 4.5" cutting heights in 0.5" increments
  • Fabricated steel deck to provide more durability
  • 4" depth and 18,500 fpm blade tip speed provides patented air flow design
  • 3 point suspension gives float capability and easy removal
  • Sealed grease-less spindle bearings require no annual maintenance
Hydro-Gear 2200 Transaxle
Dual Hydro-Gear ZT2200 Hydrostatic Transaxles
  • Speeds up to 7 mph forward and 3.4 mph reverse
  • External oil filter and remote reservoir allow for maintenance for improved life
  • Integrated cooling fans prevent overheating during extended use
  • Adjustable hydraulically dampened twin levers gives smooth operation
  • Internal debris free parking break
Exmark Padded Seat
Other Features:
  • Commercial grade contoured foam padded seat with armrests
  • 20x8-10 rear tires

Engine: Kawasaki®
Model: FR691V
Air Filter: Standard Engine Manufacturer's air filter
Drive System: Two Hydro-Gear ZT2200 hydro static transmissions with no hoses, integrated cooling fans, integrated reservoir.
Speed: Infinitely variable speed selection from 0–7 mph (11.3 km/h) forward. 0–3.4 mph (5.5 km/h) reverse.
PTO Engagement: MagStop electromagnetic 125-ft-lbs clutch
Fuel Capacity: High-capacity, 2.9-gallon (11.0-L), single fuel tank with single fill location.
Drive Wheel Release: Allows unit movement without engine running.
Safety Package: Operator Presence Controls (OPC) and drive system interlock.
Rollover Protection System (ROPS): None
Casters: .25" thick caster yoke arms
Cup Holder: Standard
CARB Compliant: No
Deck Construction: 12-gage stamped steel deck shell. Formed spindle mounting locations for improved strength and reduced weight.
Deck Style: Exmark Series-1 stamped steel deck. Side discharge standard with the option to bag or mulch.
Width: 50" (127 cm)
Deck Lift: Standard; lever lift. Foot-assist lifts the deck to maneuver around obstacles.
Cutting Heights 1.5" (3.8 cm) to 4.5" (11.4 cm) in 0.5" (1.3 cm) increments, adjustable from operator seat with standard foot operated assist.
Blades 3 Blades at 17.50" Length
Blade-Tip Speed Approximately 18,500 fpm.
Tractor Frame: Unibody, Riveted 10 ga. Steel
Steering Control: Hydraulically dampened twin levers, adjustable both fore and aft. Levers are also adjustable to 2 height positions.
Front Caster Tires: 13 x 5 ribbed tread, pneumatic
Drive Tires 18 x 9.50-8, 4-ply Turf Tech TL
Parking Brake Automatic-actuated pawl brake.
Seat Commercial Grade High Back contoured foam padded with armrests. Hinged mounting, spring suspension. Adjustment: Fore and aft from Operators’ Position.
Blade Spindles No maintenance, sealed and non-greasable spindles; 5.50"-diameter cutter housing with 0.67\"-diameter spindle shaft.
Electrical 12-volt battery with 15-amp alternator.
Curb Weight: 623 lbs
Length: 72.9 in. (185.2 cm)
Width: 63 in. (160.0 cm)
Height: 42.9 in. (109.0 cm)
Warranty: 30 day Comm / 3 Year Cons