FrontMount™ 600 Series

Air-Cooled Gas

MODEL 623T

An ideal FrontMount™ solution for home or business use, the Grasshopper Model 623T riding lawn mower with zero-turn maneuverability offers the power, reliability and economical performance that homeowners and lawn care professionals need to get the job done. Make quick work of cleaning the underside of the cutting deck with the exclusive PowerFold® deck lift/electric height adjustment feature. The front-mounted deck removes and can be replaced with turf renovation and snow removal implements for year-round productivity.

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Mowing speeds up to 8.5 MPH and 4.02 acres/hr. based on 52" cutting width. Actual results may vary. Click here for details.

DECK SIZES

48"
52"

COLLECTORS

8F
8HT
12F
12HT

IMPLEMENTS

FrontMount PowerVac Collection Systems
AERA-vator Coreless Aerator
Tine-Rake Dethatcher
Little Bully Dozer Blades
CleanSweep Rotary Brooms
DriftBuster Snowthrowers
Shielded Sprayer
Edge-EZE Edger

*Models may be shown with optional equipment. Applicable freight, set-up and taxes not included in "Starting At" MSRP. Options and accessories extra. All prices USD and subject to change without notice. See local dealer for complete pricing and available offers.

  • Single-fork tail wheels enhance weight distribution, improve stability and enhance castering effect when maneuvering.

  • Add or remove implements in minutes without tools with QuikConverter™ Implement System
  • Equip your out-front mower with a wide range of tools, including turf cleanup, renovation and snow removal implements that extend your productivity year-round

Isolates the engine and T-Drive™ from the operator platform for an unprecedented vibration-free experience

  • Fewer than 10 grease points and easy top-side access to belts and filters
  • 1,000-hour transmission fluid change intervals
  • Self-tensioning belts minimize cost and labor on routine maintenance

  • 694 cc, 2-cylinder, air-cooled Kohler Command V-Twin engine

Standard on all FrontMount™ DuraMax® decks, PowerFold® is the zero-turn mower industry's first electric deck lift (introduced in 2004).

PowerFold® rotates the deck nearly 90 degrees to provide easy access to the underside of the deck for simplified maintenance and mulching package installation, plus space-saving portability and storage.

The feature also adjusts cutting height between 1.25 and 5.0 inches and controls deck lift functions using a single switch.

  • Extra-deep, 5.5-inch deck is fabricated from heavy-gauge formed steel with a reinforced anvil edge
  • Specially designed cutting chambers enhance airflow for better cut quality
  • Deck easily converts from side discharge to optional Down Discharge™ mulching or PowerVac™ collection
  • Sentry™ spindles with massive, 8-inch flanges anchored in a 6-bolt pattern, spread the force of impact for greater strength
  • Spindle planes are fabricated from double-layered formed steel laminate and combine with the spindles to form a triple-strength deck to keep blades level and deliver a high-quality cut.
  • Sentry™ spindle guards shield spindle housing and seal lower bearings from fiber wrap and dirt ingestion

  • Standard, low profile operator protection structure (OPS) with an adjustable seatbelt
  • Dampened steering levers that return to neutral from forward and reverse
  • Interlock switches that shut down the engine when the operator leaves the seat while PTO is engaged or levers are in drive position

  • Tandem 12cc Parker pumps-in-reservoir transmission is specifically designed for turf-care applications
  • In-line CoolFan™ cooling system and integrated, replaceable, high-efficiency fine-particle filter
  • Design directs more power to the cutting deck as power-sapping components are eliminated

  • Robotically-welded, high-grade steel construction and I-beam reinforcement for long-lasting durability
  • Centered-bearing design provides greater load-bearing capacity to easily handle the weight of operator, fuel and high-capacity collector with reserve strength for curb shocks and weight shifts
  • Tough-as-nails powder-coated finish is fusion-bonded for chip and rust resistance

  • Commercial Use: 3-year unlimited hours; limited warranty: First two years covering parts and labor; third year covering parts only.
  • Residential Use: 4-year or 800-hour (whichever comes first); limited warranty covering parts and labor.

  • The deep-cushioned, deluxe Premium Comfort Seat features a coil-spring suspension and padded lumbar support for all-day comfort. Iso-mounting eliminates vibration before it reaches the seat, and both padded seat and armrests are covered in scuff-resistant, breathable CoolTemp Cordura® fabric, which dissipates heat and won’t tear or crack with extended use.
  • Operational controls including throttle, ignition and push/pull PTO switches, angled View-Eze™ console and adjustable cup holder are well positioned for visibility and ease of reach.
  • One- or two-handed operation with ComfortReach™ adjustable Hydra-Smooth™ dual levers that automatically return to neutral from either forward or reverse position.


Type/Horsepower/Cylinders
Kohler Command Pro, V-Twin
Displacement
42.4 cu. in. (694 cc)
Lubrication System
Pressure Lube/Filter
Crankshaft
Horizontal
Cooling System
Air
Fuel
Gasoline - unleaded
Fuel Capacity
4.0 U.S. Gal. (15.14 l)
Optional Fuel Capacity
NA
Air Cleaner
Heavy-duty, remote mounted, cyclonic, dual element air filtration.
Muffler
Ultra-quiet, industrial type

DECK
DuraMax (52")
Mulching Package #
504566(48), 504567(52)
DURAMAX® DECK SIZE
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
*
– 52" Deck
*
– 61" Deck
NA
– 72" Deck
NA
CUTTING HEIGHT RANGE
1.25 to 5.0 in. (3.2 cm to 12.7 cm)
CONSTRUCTION (Robotic-welded steel)
Tubular 2.25 in. x 4 in. boxed members with 0.25 in. gussets. Formed double thickness hardened steel (0.239 in. = 3 gauge (6.07mm)) truss spindle plane and (3) Sentry™ spindles and a triple-strength upper deck, over 1/2 inch thick in stress zones. Geometrically engineered design with 7 gauge skirts to withstand the brunt of commercial mowing.
BLADES (Tempered, alloy steel)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
(2) 18 in. (45.7 cm)
(1) 15 in. (38.1 cm)
– 52" Deck
(3) 18 in. (45.7 cm)
– 61" Deck
NA
– 72" Deck
NA
SPINDLE ASSEMBLIES
Sentry™ Spindle System, 2.5 cm (approx. 1 in.) O.D. shaft. Double bearings greasable from top of deck. Spindle head designed to eliminate fiber wrap.
SPINDLE HOUSINGS
8 in. (20.3 cm)-diameter machined aluminum housing with 6-bolt pattern.
BLADE DRIVE
Maintenance-free gearbox with single Kevlar V-belt and idler arm tensioning.
TRIMABILITY (Outside of std. tire to left trim side)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
3.5 in. (8.9 cm)
– 52" Deck
2.5 in. (6.4 cm)
– 61" Deck
NA
– 72" Deck
NA

Battery (maintenance-free)
12 Volt
Starter
Solenoid shift
Ignition
Breakerless
Interlock System
Prevents engine start when PTO clutch is engaged or steering levers are in drive position. Allows operator dismount without engine shutdown only when PTO is disengaged and steering levers are locked in neutral.

Seat
Iso-mounted Premium Comfort Seat. Features include a high-back, deep-cushioned, foam-padded Cordura®-covered, padded arm rests, padded backrest with lumbar support, coil-spring suspension and embroidered Grasshopper logo on seat back.
Suspension
AntiVibe PowerPlatform™ with iso-mounted seat and footrest
Console-mounted Instruments
Low engine oil pressure and parking brake indicator lights, work lights, digital hour meter, ignition and push/pull PTO switches. Choke integrated with throttle lever.
Work Lights
Optional - LED
Hour Meter
Standard

Type
T-Drive™ hydrostatic transmission with tandem 12 cc Parker pumps-in-reservoir, in-line CoolFan™ for cooling efficiency, design-matched Parker high-torque wheel motors. AntiVibe Power Platform® reduces vibration for the operator.
Filtration/Hydro Fluid
Integrated, replaceable, high-efficiency, fine-particle filter / Grasshopper CoolTemp Hydro-Max™ fluid withstands high and low temperature extremes for 1,000 hour change intervals.
Speed
0-8.5 mph (0-13.7 kph) forward; 0-5.5 mph (0-8.9 kph) reverse.
Turning Radius
True zero degree, turns within own length with counter-rotating, independently powered drive wheels. Seat is pivot point.
Steering
One- or two-hand operation with adjustable, HydraSmooth™, dual levers that automatically return to neutral from either forward or reverse position.
Brakes
Dynamic braking through hydrostatic transmission.
Parking Brake
Disc parking brakes, one for each drive wheel.
Attachment Drive
Telescoping PTO shaft with two high-speed U-joints, Quik-D-Tatch® coupler and heavy-duty electric Mag Stop® blade clutch/brake.

MidMount
Drive Wheels - Standard (4-ply rated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
NA
– 52" Deck
NA
– 61" Deck
NA
– 72" Deck
NA
Drive Wheels – Optional (4-ply rated)
NA
Front Wheels – All Models
NA
FrontMount
Drive Wheels – Standard (4-ply rated)
20x10.00x8 turf tread, 4-ply rated
Drive Wheels – Optional (4-ply rated)
22 x 11-10 turf tread, 4-ply rated
22 x 11-12 Michelin® X® Tweel® airless turf tread
Single Tail Wheel
13x6.50x6 rib tread, pneumatic
Wide Stance Single Fork Tail Wheel
NA
Deck Tires (4-ply rated)
– 41" Deck
NA
– 42" Deck
– 44" Deck
NA
– 48" Deck
9x3.50x4 (flat proof), 4-ply rated
– 52" Deck
9x3.50x4 (flat proof), 4-ply rated
– 61" Deck
NA
– 72" Deck
NA

Height (Seat Back)
43.5 in. (110.5 cm)
Height (Seat Cushion)
26.0 in. (66.0 cm)
Height (ROPS)
63.0 in. (160.0 cm)
Length (frontmount w/ DuraMax® Deck - Mowing Position)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
99.0 in (251.5cm)
– 52" Deck
100.0 in. (254.0 cm)
– 61" Deck
NA
– 72" Deck
NA
Length (FrontMount Power Unit + DuraMax® Deck - Folded Up)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
78.0 in. (198.2 cm)
– 52" Deck
– 61" Deck
NA
– 72" Deck
NA
Deck Width (Side Discharge)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
61.5 in. (156.2 cm)
– 52" Deck
65.5 in. (166.5 cm)
– 61" Deck
NA
– 72" Deck
NA
Deck Width (Mulch*)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
49.5 in. (125.7 cm)
– 52" Deck
53.5 in. (135.9 cm)
– 61" Deck
NA
– 72" Deck
NA
FrontMount PowerUnit Only (Width/Length)
47.0 in. (119.4 cm)/59.0 in. (149.9 cm)
FrontMount Power Unit (Wheelbase)
46.0 in. (116.8 cm)

(Uncrated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
1040 lbs. (471.7 kg)
– 52" Deck
1120 lbs. (508.0 kg)
– 61" Deck
NA
– 72" Deck
NA
FrontMount Power Unit Only (uncrated)
750 lbs. (340.2 kg)
FrontMount Deck Only - Side Discharge (uncrated)
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
290 lbs. (131.5 kg)
– 52" Deck
370 lbs. (167.8 kg)
– 61" Deck
NA
– 72" Deck
NA
Mulching Package
– 41" Deck
NA
– 42" Deck
NA
– 44" Deck
NA
– 48" Deck
25 lbs. (11.3 kg)
– 52" Deck
29 lbs. (13.2 kg)
– 61" Deck
NA
– 72" Deck
NA

All specifications and information displayed on this Web site are subject to change without notice.

Includes low-pressure tires and wide-stance, single-fork tail wheels.

48-inch 33 Series out-front, side-discharge deck, which easily converts to Down Discharge® mulching or vacuum collection. Available as manual FoldUp™ deck or equipped with PowerFold® electric deck lift/height adjustment.

52-inch 34 Series DuraMax® side-discharge deck, which easily converts to Down Discharge® mulching or vacuum collection. Available as manual FoldUp™ deck or equipped with PowerFold® electric deck lift/height adjustment.

52-inch 34R Series DuraMax® side-discharge deck, which easily converts to Down Discharge® mulching, rear discharge or vacuum collection. Comes standard with PowerFold® electric deck lift/height adjustment.

Powerful, deck-driven PowerVac™ collection systems deliver one-pass perfection every time, and are available with a wide range of twin or triple mesh bag or high-capacity metal hopper collectors.

Used in conjunction with PowerFold® electric deck lift/height adjustment, this armrest-mounted switch controls deck lift functions and adjusts cutting height between 1.0 and 4.5 inches on the go.

Optional rear discharge shield kit converts 34R Series decks to direct clippings out the back of the deck for a smooth cut and no windrowing.

The optional SpeedTrimming™ heavy-duty, anti-scalp roller kit for 52-inch and larger DuraMax® decks speeds close trimming near buildings, fences retaining walls and other landscaping features. Kits available for both left and right sides of cutting decks.

Allow for controlled side-to-side flotation of the deck in rolling terrain for a smooth, even cut.

Every FrontMount™ mower accepts a range of time- and labor-saving QuikConverter™ implements for even greater flexibility and productivity year-round.

Provides additional seating room for larger operators or to accommodate cell phones or pagers. Requires seat belt extension.

Optional low-pressure, high-flotation bar-tread tires flex with the terrain for maximum traction and minimize scuffing caused by wheel spin-out.

Dual-fork tail wheels or wide stance single-fork tail wheels.

The Adjustable Cup Holder locks into multiple positions to accommodate a wide range of drink sizes.

Yellow beacon attaches to OPS to provide greater visibility in high-traffic areas.

LED work lights provide improved visibility in low light situations.

Control the discharge of the mower deck to avoid putting clippings in flower beds and on sidewalks

Smooth tread, 13x6.50x6 tail wheel. Performs like a pneumatic tire, but without the inconvenience and downtime associated with flats. Not for use with PowerVac Collection Systems.

Diamond-plated aluminum canopy is highly resistant to abrasions. Mounts to ROPS or OPS to increase operator comfort by limiting exposure to direct sunlight and reducing eye strain. Canopy tilts up and down to accommodate operator’s size. Optional cooling fan and LED light kit increase operator comfort and visibility.

An optional Air Dam Kit can be installed along the front edge of most mower decks to minimize dust and dirt escaping from the front of the mower.

Lightweight, water repellent, UV-resistant vinyl canopy mounts easily to OPS or ROPS to limit exposure to direct sunlight, reducing eye strain and increasing operator comfort.

The optional Down Discharge™ mulching package with GrassMax™ High-Low Mulching blades cuts and recuts clippings and directs them deep into the turf, enriching turf and producing a beautifully manicured cut.

Optional premier suspension seat provides the ultimate in operator comfort. Low-profile seat slides fore and aft and includes an integrated shock absorber that manually adjusts to operators between 100 – 300 lbs. Other ergonomic features include a backrest that tilts from -5 degrees to +30 degrees, a lumbar support mechanism, adjustable armrests and a retractable seat belt.

Provides an additional two inches of leg clearance.

Dedicated, extra deep rear-discharge decks deliver revolutionary performance for applications where keeping clippings off sidewalks, driveways and parking lots is critical.

Optional 22 x 11.00-12 turf-tread drive tire performs like a pneumatic tire but without the inconvenience and downtime associated with flat tires. Provides consistent hub height to ensure the mower deck produces an even cut and excellent lateral stability and outstanding operator comfort.