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Toro Groundsmaster® 4300

Toro Groundsmaster® 4300

The Groundsmaster® 4300-D has a lightweight footprint and CrossTrax™ 4-wheel drive for superior hill-climbing. Each of its five Contour™ Plus cutting units closely follows contours for an even cut on undulating terrain.

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• Quick and easy access to all major service areas.
• Optimized design and use of lightweight materials means less weight and turf compaction without sacrificing performance and functionality.
• The Groundsmaster® Contour Series mowers provide the productivity you need, no matter the size. Mow up to 10.6 acres (4.3 hectares) per hour to get the job done fast.
• The Contour™ Plus cutting technology takes quality of cut to a whole new level. Air inlet pockets keep the grass standing tall for the cleanest possible cut and a modified rear discharge opening disperses clippings more evenly. An optional mulching kit and optional high height of cut blade are also available.
• Based off our patented series/parallel 3-wheel drive kit, the CrossTrax® system automatically transfers power from the front tires to the opposite rear tires to minimize spinouts and maximize traction on wet terrain.
• All of the indicators and controls to operate the unit are conveniently located on the right armrest. Control console pivots back for right hand entry and exit. Tilt steering, deluxe suspension seat, improved visibility and lower operating noise enhance the operator experience and help to reduce fatigue.
• Proven rugged frame, drivetrain, and components ensure durability and long life. Heavy-duty welded steel decks and frames provide extra durability and long life.

Air Filter: Dry, replaceable primary and optional safety element.
Armrests: Standard
Battery: 12V
Blade Style/Type: Rotary
Blade Type (Description): 22” (55.9 cm) long, 2.5” (6.4 cm) wide, 0.25” (0.64 cm) thick combination blades.
Cab Unit: N/A
Controls: Single foot-operated traction pedal. Hand-operated key ignition switch, cutting unit raise/lower switch, cutting unit engage switch, parking brake switch, cruise control switch, and headlight switch all positioned on right hand pivoting control console.
Cooling System Description: Rear-mount, cross-flow 7-row radiator with 6.3 fins per inch, 5.5 quart (5.2 liter) capacity.
Cup Holder: Standard
Cutting Unit Accessories: Leaf Mulching Kit, Combination Blade, Angle Sail Blade, Atomic Mulching Blade, Rear Roller Scraper Kit, Sectional Rear Roller, 22” Rotary Replacement Cutting Unit
Cutting Unit Lift/Lower: Joystick control for deck raise and lower.
Cutting Unit Type/Configuration: Five Contour™ Plus 22” (55.9 cm), rear-discharge rotary cutting units with rear roller on each deck. 90” (229 cm), overlap 5” (12.7 cm), overhang 1” (2.5 cm)
Deck Construction: Cutting chamber is 10-gauge steel constructed chambers with 12-gauge welded reinforcements. Spindle support is 3/16” (0.48 cm) high-strength steel and 10-gauge exterior channels. Cutting unit frame is welded 1.5” (3.8 cm) square x 0.25” (0.6 cm) wall tube with 7-gauge side supports. Spindle support 3/16” (0.48 cm) high-strength steel and 10-gauge exterior channels.
Drivetrain: Diesel
Electrical System: 12-volt battery with 540 CCA, 55 amp alternator. Overload protection with automotive-type fuses.
Engine Cooling: Liquid Cooled
Fuel / Power Source: Diesel / Biodiesel
Fuel Capacity: 13.5 U.S. gal. (51.1 L)
Gauges/Instrumentation: InfoCenter™: Onboard LCD display shows gauges, alerts/faults, service reminders, electrical system diagnostics. Indicates fuel level, coolant temp, low oil pressure, alternator, engine hours, engine rpm, voltage, counterbalance settings, glow indicator, lift/lower indicator.
Ground Clearance: 5" (12.7 cm)
Ground Following: 6” (15.3 cm) anti-scalp cups on each blade.
Ground Speed - Forward: 0 - 10 mph (0 - 16.1 km/h)
Ground Speed - Reverse: 0 - 4 mph (0 - 6.4 km/h)
Height: 86" (215 cm) with 2-post ROPS
Height of Cut Range: 0.75” - 4” (1.9 cm - 10.2 cm) in 0.25” (0.6 cm) increments.
Hydraulic Cylinders: Two remote spin-on filters: main system, and traction charge.
Hydraulic Fluid Capacity: 14 U.S. gal. (53 L)
Hydraulic Fluid Type: Toro PX™ Extended Life Hydraulic Fluid
Implement Drive: Hydraulic, direct coupled to spindle.
IntelliDash™ Capable: No
Interlocks: Prevents engine from starting unless traction pedal is in neutral and deck is disengaged. If operator leaves seat with deck engaged, decks stop. If operator leaves the seat with the unit out of neutral, engine stops. Mowing only permitted in low range. Engine stops if parking brake engaged and traction pedal not in neutral.
Lighting: Standard
Main Frame/Chassis: All welded formed-steel frame with integral tie-down anchors.
Max Slope Angle: Refer to operator's manual.
Mowing Rate (Productivity): Up to 6.4 acres/hr (2.6 hectacres/hr)
Mowing Speed: 0 - 7 mph (0 - 11.3 km/h)
Number of Blades: 5
Oil Capacity: 5.5 U.S. qt. (5.2 L)
Oil Cooler Description: Double row, single-pass oil cooler that tilts out for cleaning.
Optional Accessories: Air-ride Seat Suspension, Two-post ROPS Extension System, White Sunshade, Red Sunshade, Operator Fan Kit, Diagnostic Display Box, Golf Ball Operator Guard
Overall Width: 96.3" (245 cm) (outside of decks)
Parking/Service Brakes: 8” mechanical drum-type front wheel brakes. Brakes may be actuated for service braking via left foot pedal. Integrated foot pedal lock provides parking brake. Dynamic braking through hydrostatic traction drive system.
Power Steering: Yes
Power Train (Engine Description): Yanmar® 3-cylinder, liquid-cooled, turbo-charged diesel, 43.4 hp (32.4 kW), 88.5 ft.-lbs. of torque, 91.4 cu. in. (1.5 liter) displacement. EPA Tier IV Final and Stage V compliant.
Product Length: 126" (320 cm)
Rollers: Per deck: Two 5” (12.7 cm) diameter front rollers with sealed stainless steel bearings, one 3” (7.6 cm) diameter rear roller with greaseable stainless steel bearings.
Safety/Operator Safety: 2-post ROPS and seat belt standard.
Seat: Mechanical suspension seat standard with pivoting LH armrest, pivoting RH control arm and retractable seat belt.
Spindle Assembly: Ductile cast iron spindle housing. Dual greaseable tapered roller bearings. 1.25” (3.2 cm) diameter solid cold finished steel spindle shaft. Splined connection between spindle shaft and pulley. Welded blade retainer plus anti-scalp cups.
Starting: Key Start
Steering System Description: Rear wheel, power steering with an independent hydraulic pump circuit.
Tires - Front: 26.5" x 14" - 12", 6-ply
Tires - Rear: 20" x 12" - 10", 6-ply
Tool Box: Standard
Traction Drive: 4WD
Traction Drive (System): Front drive wheels powered by a hydrostatic pump with individual wheel motors. Parallel / Series Hydrostatic, closed loop 4 wheel drive, forward direction only. Variable displacement piston pump with direct displacement control, Standard all-wheel drive with CrossTrax® All-Wheel Drive system, which transfers power from the front wheels to the opposite rear wheels via independent rear wheel motors.
Transport Width: 88.3" (224 cm) (outside of front tires), front track width the same. Rear track width: 54" (137 cm)
Weight: Traction Unit Weight: 3,205 lbs (1454 kg) - with full fluids and 5 cutting units. Cutting Unit Weight: 140 lbs (64 kg) – single cutting unit assembly only.
Wheelbase: 60" (152.4 cm)
Width of Cut: 90” (229 cm)

Additional information

Fuel/Power Source

Width of Cut


The Groundsmaster® 4300-D has a lightweight footprint and CrossTrax™ 4-wheel drive for superior hill-climbing. Each of its five Contour™ Plus cutting units closely follows contours for an even cut on undulating terrain.