Masport Pro Power ST S21 Utility 850

Pro Power Series
The Masport Pro Power ST S21 Utility 850 mower is strong, reliable, and built to last. Featuring a Briggs & Stratton 850 Professional IC engine and a 21-inch heavy-gauge steel chassis, this side-discharge mower is designed for tough conditions and effortless operation across Tweed Coast lawns.

$949.00

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 Pro Power ST S21 Utility 850 from the Pro Power Series is a dependable, high-performance mower built for serious mowing conditions. With a Briggs & Stratton 190 cc OHV Series 850 Professional IC ReadyStart™ 4-stroke engine and a 21-inch (530 mm) heavy-duty steel chassis, it delivers the strength and reliability you need for commercial-level mowing power.

Designed for durability and efficiency, the cast-iron cylinder sleeve enhances engine longevity while the Masport Quadcut® 4-Blade Disc System provides a superior cut and cleaner discharge. Reinforced handles and adjustable dual bearing wheels ensure comfortable control, even on uneven ground.

Key Features:

  • Side discharge only — ideal for large or rough lawn areas
  • Powered by Briggs & Stratton 190 cc OHV Series 850 Professional IC ReadyStart™ 4-stroke engine
  • ReadyStart™ system — no priming required, easy starting
  • Cast-iron sleeve in cylinder for added durability
  • 530 mm (21″) heavy-duty steel chassis
  • Masport Quadcut® 4-Blade Disc System for superior cutting and airflow
  • Front and rear 200 mm (8″) adjustable dual bearing wheels
  • Comfortable upturned upper handle with soft grip
  • Reinforced lower handle for added strength
  • Camlocks for quick-release handle fold down
Adjustable Wheel Bearings Yes
Widecut Yes
Side Discharge Yes
Engine MakeBriggs & Stratton
Engine ModelOHV Series 850 Professional IC
Engine Type4 Stroke
Engine Capacity190 cc
Power Rating (Torque)8.5 ft/lb or 11.5 Nm
Starting SystemReadyStart™
Cutting Width530 mm (21")
Cutting Height Range13 mm – 78 mm
Cutting MethodsSide Discharge
Number of Blades4
Cutting SystemMasport Quadcut® Blade Disc System
Cutting Height Steps10
Cutting Height AdjustmentSingle Point
Drive SystemPush
Chassis MaterialHeavy Duty Steel
Upper Handlebar TypeUpturned with soft grip
Handlebar RetainerCamlocks
Lower Handlebar TypeReinforced
Wheel Bearing TypeAdjustable Dual Ball
Wheel Type & SizeMSV® Mag Front 200 mm (8") and Rear 200 mm (8")
Weight30.6 kg
Product Dimensions (W × H × L)645 mm × 960 mm × 1375 mm