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Model Number 991004 991005 991006
Description Promaster 100 Promaster 100 Promaster 100
Engine
18 HP 2-cyl Air Cooled 18 Hp 2 cyl Air Cooled 18 HP 2 cyl Air Cooled
Engine Manufacturer Kohler Kohler Kohler
Model Number MV18S-PS-58550 MV18S-PS-61541 MV18S-PS-61541
Fuel and Capacity - gals (L) Unleaded
3.5 (13.2)
Unleaded
3.5 (13.2)
Unleaded
3.5 (13.2)
Idle RPM 1125-1275 1125-1275 1125-1275
Governed RPM 3225-3375 3225-3375 3225-3375
Air Cleaner Paper Element/Foam
Precleaner
Paper Element/Foam
Precleaner
Paper Element/Foam
Precleaner
Charging Capacity 15 AMP 15 AMP 15 AMP
Fuel Filter 120 Micron 120 Micron 120 Micron
Engine Oil SAE 30 SAE 30 SAE 30
Crank Case Capacity- pints (L) 4 (1.9) 4 (1.9) 4 (1.9)
Spark Plug and Gap 0.025 0.025 0.025
Battery 12 Volt 255CCA 12 Volt 255CCA 12 Volt 255CCA
Hour Meter Standard Standard Standard
Seat High Back High Back High Back
Brakes N/A N/A N/A
Steering Twin T-Bar Twin T-Bar Twin T-Bar
Turning Radius True Zero Turn True Zero Turn True Zero Turn
Tire Size Rear 18 x 8.5 - 8 4PLY 18 x 8.5 - 8 4PLY 18 x 8.5 - 8 4PLY
Rear Tire Pressure 20-25 psi (138-172 kN/m) 20-25 psi (138-172 kN/m) 20-25 psi (138-172 kN/m)
Tire Size Front 11 x 4 - 4 4 PLY 11 x 4 - 4 4 PLY 11 x 4 - 4 4 PLY
Front Tire Pressure 12-15 psi (83-103 kN/m) 12-15 psi (83-103 kN/m) 12-15 psi (83-103 kN/m)
Diagnostic Light Oil Pressure Oil Pressure Oil Pressure
Transmission
Hydrostatic Hydrostatic Hydrostatic
Hydro Pump Hydro Gear Variable Pump Hydro Gear Variable Pump Hydro Gear Variable Pump
Wheel Motor White Hydraulic (102) White Hydraulic (102) White Hydraulics (102)
Forward Speeds 0-5.7 mph (0-9.1 kph) 0-5.7 mph (0-9.1 kph) 0-5.7 mph (0-9.1 kph)
Reverse Speed 0-1.4 mph (0-2.3 kph) 0-1.4 mph (0-2.3 kph) 0-1.4 mph (0-2.3 kph)
Hydraulic Fluid Mobil Super HP 20W50 Mobil Super HP 20W50 Mobil Super HP 20W50
Hydraulic System Capacity -
pints (L)
8 (3.8) 8 (3.8) 8 (3.8)
Drive Clutch N/A N/A N/A
Lift System Manual Manual Manual
Power Take Off Electric Electric Electric
Attachments
Mower Pan 50 Inch 3 Spindle 40 Inch 3 Spindle 50 Inch 3 Spindle
Bagger System N/A N/A N/A
Sno-Thro N/A N/A N/A
Dozer Blade N/A N/A N/A
Mulching Kit N/A N/A N/A
Deck Lift Kit 79100100 79100100 79100100