Masport Contractor® ST S21 3’n1 SP K

The Masport Contractor ST S21 3’n1 SP K is built for demanding commercial mowing. Featuring a Kawasaki FJ180V engine, 3-speed transmission, and a 21-inch heavy-duty steel chassis, it delivers powerful, consistent performance for large properties and professional operators across the Tweed Coast.

$1,799.00

All products on our website are available for click and collect. As an authorised dealer for the Tweed Coast and Northern Rivers, Masport, Briggs and Stratton, and Atom, all power equipment is pre-set up and ready to go, complete with a full tank of fuel.

All products are covered by the manufacturer’s standard warranty, and we register your purchase with the manufacturer on your behalf. As an authorised warranty agent, we are your point of contact for all warranty claims.

The Masport Contractor® ST S21 3’n1 SP K is the ultimate professional mower for commercial operators, acreage owners, and anyone who demands precision and durability. Powered by a Kawasaki 179 cc OHV Series FJ180V IC 4-stroke engine with automatic mechanical de-compression for effortless starts, this mower delivers exceptional torque and reliability under heavy workloads.

The 21-inch (540 mm) deep-draw heavy-duty steel chassis is built to handle sand, impact, and tough mowing conditions. Combined with the GT Agility PRO 3-Speed Commercial Transmission and Masport Quadcut® 4-Blade Disc System, it offers superior catching, mulching, and discharge performance. Heavy-duty cast alloy wheels, steel bumpers, and reinforced handles ensure this mower stands up to daily use with minimal downtime.

Key Features:

  • Cut, Catch, Mulch & Rear Discharge functionality
  • Powered by commercial-grade Kawasaki 179 cc OHV Series FJ180V IC 4-stroke engine
  • Automatic mechanical de-compression for easy starting
  • Cast-iron sleeve in cylinder for extended engine life
  • 540 mm (21″) deep-draw heavy-duty steel chassis
  • GT Agility PRO 3-Speed Commercial transmission (3.74 – 6.63 km/h)
  • Masport Quadcut® 4-Blade Disc System for superior cutting and catching
  • Steel front bumper and engine guard for protection
  • Heavy-duty cast aluminium wheels with sealed ball bearings
  • Upturned soft-grip handle with reinforced bracing and 3-position locking system
  • Large 80 L commercial Dacron catcher with dust cover
  • Rear discharge chute and zone start for easy operation
Mulching Capable Yes
Variable Speed Self Propelled 3-Speed Transmission
Adjustable Wheel Bearings Precision 6202 Sealed Bearings
Zone Start Yes
Rear Discharge Chute Yes
Engine MakeKawasaki
Engine ModelOHV Series FJ180V IC
Engine Type4 Stroke
Engine Capacity179 cc
Power Rating (Torque)10.0 Nm
Starting SystemHeavy Duty Recoil Starter
Cutting Width540 mm (21")
Cutting Height Range13 mm – 60 mm
Cutting MethodsCut, Catch, Mulch, Rear Discharge
Number of Blades4
Cutting SystemMasport Quadcut® Blade Disc System
Cutting Height Steps11
Cutting Height AdjustmentSingle Point
Drive SystemGT Agility PRO 3-Speed Commercial
Ground Speed1st – 3.74 km/h, 2nd – 5.11 km/h, 3rd – 6.63 km/h
Chassis MaterialDeep Draw Heavy Duty Steel
Upper Handlebar TypeUpturned with Soft Grip
Handlebar Retainer3-Position Handle Locking
Lower Handlebar TypeReinforced
Catcher TypeDacron Catcher with Dust Cover
Catcher Volume80 L
Wheel Bearing TypePrecision 6202 Sealed Ball Bearings
Wheel Type & SizeCast Aluminium Front 200 mm (8") and Rear 225 mm (9¼")
Weight59.6 kg