The Model S platform success meant the designs could be pushed to enhance already proven lawnmower builds. Using Walker’s Grass Handling System™ (GHS) with Thru-Shaft™ PTO provides users with more power, higher speed and reduced weight – an ideal choice for demanding residential and commercial operators maintaining complex or large properties.


  • 18-HP, Briggs & Stratton Vanguard, 2 cyl OHV engine
  • Fuel Capacity: 7.2 L
  • Cooling System: air
  • Weight: 289 kg (w/o deck)
  • Speed: Variable 0–12 kph
  • Thru-shaft PTO
  • High performance engine with increased cooling system
  • Hydro Gear with remote expansion oil reservoir
  • Parking brake
  • Manual Clutch/Break