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Cub Cadet RZT-50 Zero Turn Mower Specs

Cub Cadet RZT-50 Engine

Briggs Engine

Engine Model ............... Briggs and Stratton 407577
Engine Type ............... 4-cycle V-twin OHV vertical-shaft air-cooled gasoline engine
Number of Cylinders ............... 2
Displacement, cu.in (cc) ............... 40.03 (656)
Cylinder Bore, in (mm) ............... 2.97 (75.0)
Piston Stroke, in (mm) ............... 2.89 (73.0)
Rated Engine Power, hp (kW) ............... 22.0 (16.3)
Rated Engine Speed, rpm ............... 3300
Idle Speed, rpm ............... 1600
Cylinder Bore Type ............... Cast iron sleeve
Fuel System Type ............... Carburetor
Carburetor Type ............... Float-feed
Fuel Pump ............... Pulse type
Governor Type ............... Mechanical
Lubrication System ............... Full pressure
Air Cleaner ............... Paper cartridge with a foam pre-cleaner
Cooling System ............... Forced air
Ignition System ............... Electronic
Spark Plug Gap, in (mm) ............... 0.030 (0.76)
Magneto Air Gap, in (mm) ............... 0.008-0.012 (0.20-0.30)
Valve Lash (Intake), in (mm) ............... 0.005 (0.127)
Valve Lash (Exhaust), in (mm) ............... 0.005 (0.127)
Fuel Tank Capacity, gal (L) ............... 3.0 (11.4)
Oil Capacity, qts (L) ............... 2.0 (1.9)
Starting System ............... Electric starter
Electrical System Rating, Volts ............... 12
Charging System ............... Alternator
Alternator Rating, Amps ............... 15

Kawasaki FH661V Engine

Engine Model ............... Kawasaki FH661V
Engine Type ............... 4-cycle V-Twin cylinder vertical shaft OHV air cooled gasoline engine
Number of Cylinder ............... 2
Displacement, cu.in (cc) ............... 41.2 (675)
Cylinder Bore, in (mm) ............... 2.96 (75.2)
Piston Stroke, in (mm) ............... 2.99 (76.0)
Engine Power, Hp (kW) ............... 22.0 (16.3)
Rated Engine Speed, rpm ............... 3600
Compression Ratio ............... 8.1:1
Compression Release ............... Automatic
Direction of Rotation ............... Counterclockwise (PTO Shaft)
Choke Control ............... Automatic with throttle control
Fuel System ............... Carburetor
Carburetor Type ............... Float with fixed main jet, twin barrel
Fuel Pump Type ............... Diaphragm type pulse pump
Governor Type ............... Mechanical
Lubricating System ............... Pressure feed by positive displacement pump
Oil Filter Type ............... Cartridge type full flow filter
Air Cleaner Type ............... Dual stage element, dry type
Cooling System ............... Forced air cooling by fan
Ignition System ............... Flywheel magneto transistor type
Starting System ............... Electric starter
Fuel Tank Capacity, gal (L) ............... 3.0 (11.4)
Oil Capacity, qts (L) ............... 1.9 (1.8)
Electrical System Rating, Volts ............... 12
Charging System ............... Alternator
Alternator Rating, Amps ............... 15

Kawasaki FR651V Engine

Engine Model ............... Kawasaki FR651V
Engine Type ............... 4-cycle vertical shaft V-twin OHV air-cooled gasoline engine
Number of Cylinders ............... 2
Cylinder Liners ............... Cast iron
Displacement, cu.in (cc) ............... 44.3 (726)
Cylinder Bore, in (mm) ............... 3.07 (78.0)
Piston Stroke, in (mm) ............... 2.99 (76.0)
Engine Power, Hp (kW) ............... 22.0 (16.3)
Rated Engine Speed, rpm ............... 3600
Maximum Torque, Nm (ft-lb) ............... 53.2 (39.2)
Torque Speed, rpm ............... 1800
Compression Ratio ............... 8.2:1
Fuel System ............... Carburetor
Carburetor Type ............... Float type with fixed main jet, single barrel
Fuel Pump ............... Diaphragm type pulse pump
Fuel Type ............... Gasoline (86 or higher)
Governor Type ............... Flyweight all speed governor
Lubrication System ............... Pressure feed by positive displacement pump
Cooling System ............... Forced-air
Oil Filter ............... Cartridge type full flow
Air Cleaner ............... Single stage element, dry type
Ignition System ............... Transistorized-flywheel magneto
Starting System ............... Electric starter
Fuel Tank Capacity, gal (L) ............... 3.0 (11.4)
Oil Capacity, qts (L) ............... 2.0 (1.9)
Electrical System Rating, Volts ............... 12
Charging System ............... Alternator
Alternator Rating, Amps ............... 15

Kohler Engine

Engine Model ............... Kohler Courage SV720
Engine Type ............... 4-cycle V-twin cylinder OHV vertical shaft air-cooled gasoline engine
Number of Cylinders ............... 2
Displacement, cu.in (L) ............... 44.2 (0.725)
Engine Bore, in (mm) ............... 3.27 (83.0)
Engine Stroke, in (mm) ............... 2.64 (67.0)
Rated Engine Power, hp (kW) ............... 22.0 (16.3)
Rated Engine Speed, rpm ............... 3600
Maximum Torque, Nm (ft-lbs) ............... 58.3 (43.1)
Torque Speed, rpm ............... 2800
Compression Ratio ............... 9.0:1
Fuel System ............... Carburetor
Carburetor Type ............... One-Barrel, fixed main jet
Fuel Pump ............... Pulse type
Lubrication System ............... Full pressure
Oil Filter ............... Full-flow type
Air Cleaner Type ............... Dual element
Ignition System Type ............... Electronic
Spark Plug Type ............... Champion RC12YC
Spark Plug Gap, in (mm) ............... 0.03 (0.76)
Module Air Gap, in (mm) ............... 0.011-0.013 (0.28-0.33)
Intake Valve Clearance, in (mm) ............... 0.005 (0.127)
Exhaust Valve Clearance, in (mm) ............... 0.005 (0.127)
Fuel Tank Capacity, gal (L) ............... 3.0 (11.4)
Oil Capacity, qts (L) ............... 2.0 (1.9)
Electrical System Rating, Volts ............... 12
Charging System ............... Alternator
Alternator Rating, Amps ............... 15

Power Take Off

Mid PTO Operational Type ............... Independent
PTO Clutch ............... Electric
PTO Drive Type ............... Belt-driven

Cub Cadet RZT50 Transmission

Transmission Model ............... Hydro-Gear EZT
Transmission Type ............... Hydrostatic
Number of Forward Gears ............... Infinite
Number of Reverse Gears ............... Infinite
Oil Capacity, qts (L) ............... 4.0 (3.75)
Maximum Forward Speed, mph (kph) ............... 6.0 (9.6)
Maximum Reverse Speed, mph (kph) ............... 3.0 (4.8)

Wheels and Tires

Drive Wheels ............... 2WD 4x2
Steering Configuration ............... Front steer
Steering System ............... Differential power
Front Tire Size (Std) ............... 11x4.00-5
Front Tire Size (Opt) ............... 13x5.00-6
Rear Tire Size ............... 18x9.50-8

Dimensions and Weight

Wheelbase, in (mm) ............... 43.5 (1100)
Overall Length, in (mm) ............... 67 (1700)
Overall Width, in (mm) ............... 54 (1370)
Weight, lb (kg) ............... 527 (240)

Mower Deck

Mower Deck Type ............... Mid-mount
Number of Blades ............... 3
Cutting Width, in (mm) ............... 50 (1270)
Cutting Height, in (mm) ............... 1.5-4.0 (37-102)
Blade Engagement ............... Electric
Anti-Scalp Wheels ............... 2
Lift System ............... Manual