600 Series Air-Cooled Gas
623T Air-Cooled Gasoline

623T Air-Cooled Gasoline

An ideal FrontMount™ solution for home or business use, the Model 623T offers the power, reliability and economical performance needed to get the job done.

KOHLER COMMAND PRO ENGINE
694 cc, 2-cylinder, air-cooled Kohler Command PRO V-Twin engine.
EXCLUSIVE T-DRIVE™ TRANSMISSION
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
HEAVY-DUTY DECK
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
POWERFOLD® ELECTRIC DECK LIFT
Standard on all FrontMount™ DuraMax® decks 48-inch and larger, 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.
WARRANTY
Commercial Use: 3-year unlimited hours; limited warranty covering parts and labor. Residential Use: 4-year or 800-hour (whichever comes first); limited warranty covering parts and labor.
ANTIVIBE POWER PLATFORM®
Isolates the engine and T-Drive™ from the operator platform for an unprecedented vibration-free experience
MINIMAL MAINTENANCE
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
BUILT FOR LONG LIFE
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
ULTIMATE OPERATOR STATION®
ComfortZone™ seat eliminates jostles and jolts with coil-spring suspension and a fully padded, high-back seat, padded armrests and variable density foam cushion. Iso-mounting smooths the ride, erases fatigue and keeps the operator comfortably in control at faster mowing speeds
ULTIMATE OPERATOR STATION®
Operational controls including throttle, choke and angled View-Eze™ console and adjustable cup holder are well positioned for visibility and ease of reach
ULTIMATE OPERATOR STATION®
One- or two-handed operation with ComfortReach™ adjustable Hydra-Smooth™ dual levers that automatically return to neutral from either forward or reverse position.
VIGILANT OPERATOR PRESENCE SYSTEM™
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
SINGLE-FORK TAIL WHEEL
Single-fork tail wheels enhance weight distribution, improve stability and enhance castering effect when maneuvering
QUIIKCONVERTER™ IMPLEMENT CAPABILITY
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
PREMIER SUSPENSION SEAT
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.
WIDE SEAT CONVERSION KIT
Provides additional seating room for larger operators or to accommodate cell phones or pagers. Requires seat belt extension.
QUIKAJUST TILT™ LEVERS
Available for all MidMount models, optional QuikAjust Tilt™ steering levers (except 124V-41) with "no tools" adjustment provide a 9-inch range for maximum comfort and fit while maintaining natural arm and wrist positions..
EXTENDED STEERING LEVERS
Provides an additional two inches of leg clearance
SIDE DISCHARGE CONTROL KIT
Control the discharge of the mower deck to avoid putting clippings in flower beds and on sidewalks
BAR-TREAD LOW-PRESSURE TIRES
Optional low-pressure, high-flotation bar-tread tires flex with the terrain for maximum traction and minimize scuffing caused by wheel spin-out.
FLOTATION PACKAGE
Includes low-pressure tires and wide-stance, single-fork tail wheels.
TAIL WHEEL OPTIONS
Dual-fork tail wheels or wide stance single-fork tail wheels.
SUNSHADE CANOPY VINYL
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.
ADJUSTABLE CUP HOLDER
An Adjustable Cup Holder locks into multiple positions to accommodate a wide range of drink sizes.
LED WORK LIGHTS
LED work lights provide improved visibility in low light situations.
YELLOW BEACON LIGHT
Yellow beacon attaches to OPS or ROPS to provide greater visibility in high-traffic areas.
ARMREST HEIGHT ADJUSTMENT SWITCH
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.
DOWN DISCHARGE™ MULCHING PACKAGE
The optional Down Discharge™ mulching package with GrassMax™ medium-lift blades cuts and recuts clippings and directs them deep into the grass bed, enriching turf and producing a beautifully manicured cut.
FULL FLOTATION DECK INSERTS
Allow for controlled side-to-side flotation of the deck in rolling terrain for a smooth, even cut.
35 SERIES DEDICATED REAR DISCHARGE DECKS
Dedicated 52-, 61- and 72-inch, extra-deep, 5.5-inch 35 Series rear discharge decks deliver revolutionary performance for applications where keeping clippings off sidewalks, driveways and parking lots is critical.
REAR DISCHARGE SHIELD KIT
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.
AIR DAM KIT
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.
SPEEDTRIMMING™ ROLLER KIT
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.
YOUR CHOICE OF DECKS
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.
QUIKCONVERTER® IMPLEMENTS
Every FrontMount™ mower accepts a range of time- and labor-saving QuikConverter™ implements for even greater flexibility and productivity year-round.
POWERVAC® FRONTMOUNT COLLECTION SYSTEM
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. Quik-D-Tatch® Vac drive can be removed in seconds without tools

Engine

48" 623T52" 623T
Engine TypeKohler Command Pro, V-TwinKohler Command Pro, V-Twin
Displacement42.4 cu. in. (694 cc)42.4 cu. in. (694 cc)
LubricationPressure Lube/FilterPressure Lube/Filter
CrankshaftHorizontalHorizontal
Engine CoolingAirAir
Fuel TypeGasoline - unleadedGasoline - unleaded
Fuel Capacity4.0 U.S. Gal. (15.14 l)4.0 U.S. Gal. (15.14 l)
Optional Fuel CapacityNANA
Air CleanerHeavy-duty, remote mounted, cyclonic, dual element air filtration.Heavy-duty, remote mounted, cyclonic, dual element air filtration.
MufflerUltra-quiet, industrial typeUltra-quiet, industrial type

DuraMax Decks

48" 623T52" 623T
DuraMax® DeckDuraMax®DuraMax®
Mulch Kit #504566504567
Deck Size48"52"
Cutting Height Range1.25 to 5.0 in. (3.2 cm to 12.7 cm)1.25 to 5.0 in. (3.2 cm to 12.7 cm)
Deck ConstructionTubular 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 withstands the brunt of commercial mowing. Anvil-edge design with o.5 in. (12.7 mm) reinforcement on front edge of deck.Tubular 2.25 in. x 4 in. boxed members with 0.25 in. gussets. Formed double thickness hardened steel (0.269 in. †7.6% thicker than 0.25 in. (6.35 mm)) truss spindle plane and (3) Sentry™ spindles and a triple-strength upper deck, 1/2 inch thick in stress zones. Geometrically engineered design with 7-gauge skirts withstands the brunt of commercial mowing. Anvil-edge design with o.5 in. (12.7 mm) reinforcement on front edge of deck.
Deck Blades(2) 18 in. (45.7 cm)
(1) 15 in. (38.1 cm)
(3) 18 in. (45.7 cm)
Deck SpindlesSentry™ 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.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 cones shield housing and lower bearings from fiber wrap and dirt ingestion
Spindle Housing8 in. (20.3 cm)-diameter machined aluminum housing with 6-bolt pattern.8 in. (20.3 cm)-diameter machined aluminum housing with 6-bolt pattern.
Blade DriveMaintenance-free gearbox with single Kevlar V-belt and idler arm tensioning.Maintenance-free gearbox with single Kevlar V-belt and idler arm tensioning.
Deck Trimability3.5 in. (8.9 cm)2.5 in. (6.4 cm)

Starter & Electrical System

48" 623T52" 623T
Battery12 Volt12 Volt
StarterSolenoid shiftSolenoid shift
IgnitionBreakerlessBreakerless
Interlock SystemPrevents 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.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.

Ultimate Operator Station

48" 623T52" 623T
Operator SeatUltimate Suspension Ride (USR) iso-mounted, high-back, deep-cushioned, foam-padded CoolTemp Cordura-covered, padded arms/backrest with lumbar support and coil-spring suspension. Optional CoolTemp Cordura-covered premier suspension seat.Ultimate Suspension Ride (USR) iso-mounted, high-back, deep-cushioned, foam-padded CoolTemp Cordura-covered, padded arms/backrest with lumbar support and coil-spring suspension. Optional CoolTemp Cordura-covered premier suspension seat.
SuspensionAntiVibe PowerPlatform™ with iso-mounted seat and footrestAntiVibe PowerPlatform™ with iso-mounted seat and footrest
Console-mounted InstrumentsLow engine oil pressure and parking brake indicator lights, work lights, digital hour meter, ignition and push/pull PTO switches. Choke integrated with throttle lever.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 LightsOptional - LEDOptional - LED
Hour MeterStandardStandard

Transmission & Steering

48" 623T52" 623T
Transmission TypeT-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.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.
Transmission FiltrationIntegrated, replaceable, high-efficiency, fine-particle filter / Grasshopper CoolTemp Hydro-Max™ fluid withstands high and low temperature extremes for 1,000 hour change intervals.Integrated, replaceable, high-efficiency, fine-particle filter / Grasshopper CoolTemp Hydro-Max™ fluid withstands high and low temperature extremes for 1,000 hour change intervals.
Speeds0-8.5 mph (0-13.7 kph) forward; 0-5.5 mph (0-8.9 kph) reverse.0-8.5 mph (0-13.7 kph) forward; 0-5.5 mph (0-8.9 kph) reverse.
Turning RadiusTrue zero degree, turns within own length with counter-rotating, independently powered drive wheels. Seat is pivot point.True zero degree, turns within own length with counter-rotating, independently powered drive wheels. Seat is pivot point.
SteeringOne- or two-hand operation with adjustable, HydraSmooth™, dual levers that automatically return to neutral from either forward or reverse position.One- or two-hand operation with adjustable, HydraSmooth™, dual levers that automatically return to neutral from either forward or reverse position.
BrakesDynamic braking through hydrostatic transmission.Dynamic braking through hydrostatic transmission.
Parking BrakeCompressionCompression
Attachment DriveTelescoping PTO shaft with two high-speed U-joints, Quik-D-Tatch® coupler and heavy-duty electric Mag Stop® blade clutch/brake.Telescoping PTO shaft with two high-speed U-joints, Quik-D-Tatch® coupler and heavy-duty electric Mag Stop® blade clutch/brake.

Tire Sizes

48" 623T52" 623T
Standard Midmount DrivetireNANA
Optional MidMount™Drive TiresNANA
MidMount™ Front Caster WheelsNANA
Standard FrontMount™ Drive Tire20x10.00x8 turf tread, 4-ply rated20x10.00x8 turf tread, 4-ply rated
Optional FrontMount™ Drive Tire21x11.00x8, bar tread, 4-ply rated21x11.00x8, bar tread, 4-ply rated
FrontMount™ Single Frok Tail Wheel Size13x6.50x6 rib tread, pneumatic13x6.50x6 rib tread, pneumatic
FrontMount™ Wide Stance Single Fork Tail Wheel SizeNANA
FrontMount Deck Tire9x3.50x4 (flat proof), 4-ply rated9x3.50x4 (flat proof), 4-ply rated

Dimensions

48" 623T52" 623T
Height, Seatback43.5 in. (110.5 cm)43.5 in. (110.5 cm)
Height Seat Cushion26.0 in. (66.0 cm)26.0 in. (66.0 cm)
Height ROPS63.0 in. (160.0 cm)63.0 in. (160.0 cm)
Mower+Deck Length100.0 in. (254.0 cm)101.0 in. (256.5 cm)
Mower+Deck - Deck Folded80.0 in. (203.2 cm)85.5 in. (217.2 cm)
Deck Width - Side Discharge61.5 in. (156.2 cm)65.5 in. (166.5 cm)
Deck Width - Side Discharge 41"NANA
Deck Width - Side Discharge 42"NANA
Deck Width - Side Discharge 48"61.5 in. (156.2 cm)NA
Deck Width - Side Discharge 52"65.5 in. (166.5 cm)65.5 in. (166.5 cm)
Deck Width - Side Discharge 61"NANA
Deck Width - Side Discharge 72"NANA
Deck Width - Mulching49.5 in. (125.7 cm)53.5 in. (135.9 cm)
FrontMount™ Width47.0 in. (119.4 cm)/59.0 in. (149.9 cm)47.0 in. (119.4 cm)/59.0 in. (149.9 cm)
FrontMount™ Wheelbase46.0 in. (116.8 cm)46.0 in. (116.8 cm)

Weight

48" 623T52" 623T
Weight Power Unit+Deck (uncrated)1040 lbs. (471.7 kg)1120 lbs. (508.0 kg)
Weight FrontMount™ Power Unit only750 lbs. (340.2 kg)750 lbs. (340.2 kg)
Weight Mower Deck290 lbs. (131.5 kg)370 lbs. (167.8 kg)
Weight Mulch Kit25 lbs. (11.3 kg)29 lbs. (13.2 kg)
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