Cub Cadet 1861 garden tractor specs and service data

The Cub Cadet 1861 is a garden tractor model manufactured from 1991 to 1992 by Cub Cadet (a part of MTD). It was available in two-wheel drive (2WD) version.

The Cub Cadet 1861 is equipped with a 691 cc (42.2 cu·in) two-cylinder gasoline engine with 79.0 mm (3.11 in) of the cylinder bore and 70.0 mm (2.76 in) of the piston stroke, and a shaft-driven hydrostatic transmission with infinite forward and reverse gears.

The Cub Cadet 1861 garden tractor features:

The Kohler Magnum M18 gasoline engine which produces 18.2 PS (13.4 kW; 18.0 HP) at 3,600 rpm of horsepower
Manual steering
Disc brakes
Open operator station
Category 0 rear hitch (optioanl)
Independent front PTO with electric clutch and 3600 rpm

General specifications

General Specifications
Model	Cub Cadet 1861
Tractor type	Garden tractor
Production years	1991-1992
Factory	–
Dimensions and weight
Length	1,820 mm (71.7 in)
Width	950 mm (37.4 in)
Height	1,110 mm (43.7 in)
Wheel base	1,180 mm (46.5 in)
Ground clearance	150 mm (5.9 in)
Weight	379 kg (836 lbs)
Fuel capacity
Fuel tank capacity	18.9 liters (5 US gal.; 4.2 Imp. gal)

Engine

Engine Specifications
Engine model	Kohler M18
Engine type	4-stroke, L-head (side valve), V-twin
Displacement	691 cm², (42.2 cu·in)
Bore and stroke	79.0 mm X 70.0 mm (3.11 in X 2.76 in)
Max. horsepower	18.2 PS (13.4 kW; 18.0 HP) at 3,600 rpm
Starting system	Electirc starter, 12V
Cooling system
Cooling system	Forced air
Air cleaner	Replaceable, paper element
Fuel system
Fuel system	Carburetor
Fuel pump type	Mechanical
Fuel filter type	In-line
Compression pressure
Normal:	7.7-8.4 kg/cm² (7.6-8.3 bar, 110-120 psi) / 1,000 rpm
Valve clearance
Intake valve clearance:	0.076-0.152 mm (0.003-0.006 in)
Exhaust valve clearance:	0.278-0.354 mm (0.011-0.014 in)
Oil system
Lubricating system	Full pressure with oil filter
Oil filter:	Full-flow type
Oil type:	API SF or SG
Recommended oil:	Summer: SAE 30W Winter: SAE 5W-20, 5W-30
Oil capacity:	1.9 L (2.0 US. qt, 1.7 Imp. qt.)
Ignition system
Spark plug:	Champion RV17YC
Spark plug gap:	0.89 mm (0.035 in)
Spark plug torque:	18 N·m (1.8 kg·m, 13.3 ft·lb)

Transmission and chassis

Chassis, steering and brakes
Chassis	4×2 2WD
Steering type	Manual
Brakes	Disc
Transmission
Transmission manufacturer or model	–
Transmission type	Shaft-driven hydrostatic
Gears	Infinite forward and reverse
Speed	Forward: 12.1 kmh (7.5 mph) Reverse: 6.4 kmh (4 mph)

Tires

Tires
Front tires	Lawn/turf: 16×6.50-8
Rear tires	Lawn/turf: 23×10.50-12

Rear Hitch

Three-Point Hitch
Category	0 (optional)
Control type	–
Lift capacity (at ends)	–

PTO (Power take-off shaft)

PTO
Front PTO type	Independent with electric clutch
Front PTO speed	3,600 rpm

Electrical system

Electrical system
Ground	Negative
Charging system	Alternator
Charging amps	15A
Battery	12V, CCA 440A

Serial numbers

Cub Cadet 1861 serial numbers
1991	811672
1992	821101

Attachments

Cub Cadet 190357: 38″ mid-mount mower deck with 2-blade and hydraulic lift
Cutting width	960 mm (38 in)
Cutting height	38-101 mm (1.5-4.0 in)
Deck style	Stamped
Cub Cadet 190358: 44″ mid-mount mower deck with 3-blade and hydraulic lift
Cutting width	1,110 mm (44 in)
Cutting height	38-113 mm (1.5-4.5 in)
Deck style	Stamped
Cub Cadet 190336: 46″ mid-mount mower deck with 3-blade and hydraulic lift
Cutting width	1,160 mm (46 in)
Cutting height	38-113 mm (1.5-4.5 in)
Deck style	Stamped
Cub Cadet 190359: 50″ mid-mount mower deck with 3-blade and hydraulic lift
Cutting width	1,270 mm (05 in)
Cutting height	38-113 mm (1.5-4.5 in)
Deck style	Stamped
Cub Cadet 190375: 42″ front-mount blade
Cutting width	1,110 mm (42 in)
Cub Cadet 190376: 54″ front-mount blade
Cutting width	1,370 mm (54 in)
Cub Cadet 190450: 45″ front-mount two-stage snowblower
Cleaning width	1,140 mm (45 in)
Drive type	Belt

Author: Sergei Wers
About: Co-founder and CEO of a multi-brand auto repair shop (engine repair, chassis repair, body repair and painting) for over 15 years. I have been developing internet sites with technical specifications for more than seven years.

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We try to use official documentation and verify the published data, but errors may occur. In addition, specifications of machinery and equipment may vary depending on markets and modifications. We do not recommend the use of this data for spare parts or repairs. Use official service manuals or parts catalogs for your product.

Cub Cadet 1861