Cub Cadet 86

The Cub Cadet 86 is a garden tractor model from the 1X8/1X9 series, manufactured from 1971 to 1974 by Cub Cadet (a part of International Harvester) in Louisville, Kentucky, USA. It was available in two-wheel drive (2WD) version.

The Cub Cadet 86 is equipped with a 305 cc (18.6 cu·in) single-cylinder gasoline engine with 74.62 mm (2.94 in) of the cylinder bore and 69.85 mm (2.75 in) of the piston stroke, and a gear type transmission with 3 forward and 1 reverse gear (6 forward and 2 reverse gear with creeper).

The Cub Cadet 86 garden tractor features:

• The Kohler K181 gasoline engine which produces 8.2 PS (6.0 kW; 8.0 HP) at 3,600 rpm of horsepower
• Manual steering
• Mechanical disc brakes
• Open operator station
• Independent front PTO with mechanical clutch
• Transmission rear PTO with 515 rpm (optional)

General specifications

General Specifications
Model	Cub Cadet 86
Tractor type	Garden tractor
Production years	1971-1974
Factory	Louisville, Kentucky, USA
Dimensions and weight
Length	1,750 mm (68.9 in)
Width	830 mm (32.7 in)
Height (steering wheel)	1,040 mm (40.9 in)
Wheel base	1,110 mm (43.7 in)
Ground clearance	150 mm (5.9 in)
Weight	–
Fuel capacity
Fuel tank capacity	7.6 liters (2 US gal.; 1.7 Imp. gal)

Engine

Engine Specifications
Engine model	Kohler K181
Engine type	4-stroke, L-head (side valve), single-cylinder
Displacement	305 cm3, (18.6 cu·in)
Bore and stroke	74.62 mm X 69.85 mm (2.95 in X 2.75 in)
Max. horsepower	8.2 PS (6.0 kW; 8.0 HP) at 3,600 rpm
Cooling system	Forced air
Lubricating system	Splash type
Ignition system	Battery ignition system
Fuel system	Carburetor
Fuel used	Unleaded gasoline (octane number 86 or higher)
Starting system	Electric starter
Governor	Centrifugal governor
Valve clearance
Intake valve clearance:	0.15-0.20 mm (0.0059-0.0079 in)
Exhaust valve clearance:	0.43-0.48 mm (0.0169-0.0189 in)
Oil system
Lubrication system:	Splash type
Oil type:	API SF or SG
Recommended oil:	Summer: SAE 30W Winter: SAE 5W-20, 5W-30
Oil capacity:	1.2 L (1.27 US. qt, 1.06 Imp. qt.)
Ignition system
Spark plug:	Champion RJ8C
Spark plug gap:	0.65 mm (0.0256 in)
Spark plug torque:	27 N·m (2.8 kg·m, 19.9 ft·lb)

Transmission and chassis

Chassis, steering and brakes
Chassis	4×2 2WD
Steering type	Manual
Brakes	Mechanical disc
Transmission
Transmission manufacturer or model	–
Transmission type	Gear type with dry disc clutch
Gears	3 forward and 1 reverse
Speed	Forward: 10.9 kmh (6.8 mph) Reverse: 4.0 kmh (2.5 mph)
Transmission oil capacity	3.3 L (0.9 US. gal, 0.7 Imp. gal.)
Transmission № 2
Transmission manufacturer or model	–
Transmission type	Gear type with creeper and dry disc clutch
Gears	6 forward and 2 reverse
Speed	Forward: 10.9 kmh (6.8 mph) Reverse: 4.0 kmh (2.5 mph)
Transmission oil capacity	3.5 L (0.9 US. gal, 0.8 Imp. gal.)

Tires

Tires
Front tires	Lawn/turf: 4.80×4.00-8
Rear tires	Lawn/turf: 6-12

Rear Hitch

Three-Point Hitch
Category	Sleeve hitch (optional)
Control type	–
Lift capacity (at ends)	–

PTO (Power take-off shaft)

PTO
Front PTO type	Independent with mechanical clutch
Front PTO speed	–
Rear PTO type	Transmission (optional)
Rear PTO speed	515 rpm

Electrical system

Electrical system
Ground	Negative
Charging system	Generator (Delco-Remy)
Charging amps	15A
Battery	12V

Serial numbers

Cub Cadet 86 serial numbers
1971	400001
1972	417643
1973	457305
1974	495749
Final	529811

Attachments

Cub Cadet: 38″ mower deck with 3-blade
Cutting width	960 mm (38 in)
Cutting height:	20-100 mm (1-4 in)
Cub Cadet: 44″ mower deck with 3-blade
Cutting width	1,110 mm (42 in)
Cutting height:	20-100 mm (1-4 in)
Cub Cadet: 50″ mower deck with 3-blade
Cutting width	1,270 mm (48 in)
Cutting height:	20-100 mm (1-4 in)
Cub Cadet QA-36A: 36″ front-mount snow blower with manual lift
Cleaning width	910 mm (36 in)
Cub Cadet QA-42A: 42″ front-mount snow blower with manual lift
Cleaning width	1,060 mm (42 in)