Kubota G1800

Kubota G1800The Kubota G1800 is a garden tractor model from the G series, manufactured from 1989 to 2000 by Kubota. It was available in two-wheel drive (2WD) version.

The Kubota G1800 is equipped with a 656 cc (40.0 cu·in) three-cylinder diesel engine with 64.0 mm (2.52 in) of the cylinder bore and 68.0 mm (2.68 in) of the piston stroke, and a hydrostatic transmission with infinite forward and reverse gears.

The Kubota G1800 garden tractor features:

  • The Kubota D662 diesel engine which produces 16.2 PS (11.9 KW; 16.0 HP) at 3,200 rpm of horsepower
  • Manual type (2WS or 4WS) steering
  • Internal expanding shoe type brakes
  • Open operator station
  • 19.0 liters (5.0 US gal.; 4.2 Imp. gal) fuel tank

General specifications

General Specifications
ModelKubota G1800
Tractor typeGarden tractor
Production years1989-2000
Factory
Dimensions and weight
Length1,865 mm (73.4 in)
Width 2WS: 960 mm (37.8 in)
4WS: 1,034 mm (40.7 in)
Height1,110 mm (43.7 in)
Wheelbase1,270 mm (50 in)
Ground clearance 2WS: 150 mm (5.9 in)
4WS: 105 mm (4.1 in)
Weight 2WS: 320 kg (705 lbs)
4WS: 340 kg (750 lbs)
Fuel capacity
Fuel tank capacity19.0 liters (5.0 US gal.; 4.2 Imp. gal)

Engine

Engine
Engine modelKubota D662 (Same as: D662-L)
Engine type4-stroke, vertical, three-cylinders
Displacement656 cm3, (40.0 cu·in)
Compression ratio:23.0:1
Cylinder bore:64.0 mm (2.52 in)
Piston stroke:68.0 mm (2.68 in)
Gross horsepower16.2 PS (11.9 KW; 16.0 HP) at 3,200 rpm
Max. torque
Emission type
Cooling systemLiquid-cooled
Lubricating systemForced lubrication by pump
Combustion chamberSpherical type (N-TVCS)
Fuel injection pumpBosch MD type mini pump
Injection nozzleBosch throttle type (DN4PD62)
Fuel usedDiesel fuel No.2-D
Starting systemElectric starter (12V, 0.8 kW)
Starting support deviceGlow plug in combustion chamber
GovernorCentrifugal ball mechanical governor
PTO shaft rotationCounterclockwise (from PTO shaft side)
Dimensions (L x W X H)426 x 398 x 519 mm (16.8 x 15.7 x 20.4 in)
Dry weight73.7 kg (162.5 lbs)
Cylinder compression pressure
Cylinder compression:29.0-33.0 kgf/cm2 (2.84-3.24 MPa, 412-469 psi)
Compression differential limit between cylinders:10% or less
Valve clearance
Intake valve clearance:0.145-0.185 mm (0.0057-0.0073 in)
Exhaust valve clearance:0.145-0.185 mm (0.0057-0.0073 in)
Oil system
Lubrication system:Forced lubrication by pump
Oil type:API CD or CE
Oil capacity:3.0 liters (3.17 US.qts, 2.64 Imp. qts)
Oil filter:Full flow paper filter (cartridge type)
Oil pressure: At idle spped: 98 kPa (1.0 kgf/cm2, 14 psi)
At rated speed: 196-441 kPa (2.0-4.5 kgf/cm2, 29-64 psi)
Fuel system
Fuel injection pumpBosch MD-type mini pump
Injection nozzleBosch throttle type
Fuel injection pressure13.73-14.71 MPa (140-150 kgf/cm2, 1991-2133 psi)
Cooling system
Type:Pressurized radiator, forced circulation with water pump
Thermostat’s valve opening temperature:69.5-72.5°C (157.1-162.5°F)
Temperature at which thermostat completely opens:85°C (185°F)
Coolant capacity:3.3 liters (3.49 US.qts, 2.9 Imp. qts)

Transmission and chassis

Chassis, steering and brakes
Chassis2WD
Steering typeManual type (2WS or 4WS)
BrakesInternal expanding shoe type
Transmission
Transmission manufacturer or model
Transmission typeHydrostatic
GearsInfinite forward and reverse
Speed Forward: 13.0 kmh (8.1 mph)
Reverse: 6.0 kmh (3.7 mph)
Transmission oil capacity5.7 L (1.5 US. gal, 1.3 Imp. gal.)

Tires

Tires
Front tires Lawn/turf: 16×6.50-8
Rear tires Lawn/turf: 23×10.50-12 (2WS), 23×8.50-12 (4WS)

Electrical system

Electrical system
GroundNegative
Charging systemAC dynamo (12V, 150W)
Charging amps
Battery12V, 45Ah

Attachments

Kubota RC48: 48″ mid-mount mower deck with three-blades
Cutting width1,224 mm (48.0 in)
Cutting height36-90 mm (1.4-3.5 in)
Number of blades3
Kubota RC54: 54″ mid-mount mower deck with three-blades
Cutting width1,370 mm (54.0 in)
Cutting height38-102 mm (1.5-4.0 in)
Number of blades3
Kubota TG2001: 48″ front-mount blade
Cutting width1,224 mm (48.0 in)
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.

ATTENTION! Dear visitors, this is an informational database of technical specifications, we are not a parts supplier or a marketplace.

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.

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