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Kubota JB18

The Kubota JB18 is a tractor produced by Kubota. It is equipped with a 61.1 ci 1.0 L engine. The listed engine power is Diesel (listed): 18.2 hp / 13.6 kW. Transmission: 6 forward and 2 reverse. Operating weight: 1301 lbs 590 kg.

Engine Power
Diesel (listed): 18.2 hp / 13.6 kW
Fuel & Capacities
3.7 gal 14.0 L
Transmission
6 forward and 2 reverse
Operating Weight
1301 lbs 590 kg

Overview

No photo available
2006 - 2008 JB Bullstar SeriesSub-Compact Utility tractor JB Bullstar Series Sub-Compact Utility tractor
Production
Manufacturer
Kubota
Sub-Compact Utility tractor
Variants
JB18
wheeled
JB18-PC
half-track
Kubota JB18 Engine
Kubota 1.0L 3-cyl diesel
Fuel tank
3.7 gal 14.0 L
Engine details ...
Kubota JB18 Transmission
6-speed
Transmission details ...
Kubota JB18 Power
Engine
18.2 hp 13.6 kW
Mechanical
Four-wheel drive
Steering
manual
Steering
power OptOptional
Wet disc brakes
Two-post ROPS.
Tractor hitch
Rear Type
0
Power Take-off (PTO)
Rear PTO
540 (1.375)
Rear PTO Type
551:2600
967:2600
Dimensions & Tires
Wheelbase
50 inches 127 cm
Weight
1301 lbs 590 kg
Front tire
5.00-12
Rear tire
8-18
Full dimensions and tires ...
Electrical
Ground
negative
Battery volts
12

Engine

Engine Detail — 61.1 ci / 1.0 L Diesel

Manufacturer
Kubota D1005
Fuel Type
Diesel
Configuration
3-cylinder, liquid-cooled
Displacement
61.1 ci 1.0 L
Bore/Stroke
2.99x2.90 inches 76 x 74 mm
Power
18.2 hp 13.6 kW
Rated RPM
2600
Starter
electric
Starter volts
12

Transmission

Transmission — 6 forward and 2 reverse

Gears
6 forward and 2 reverse
Clutch
dry disc
Three gears, plus reverse, in two ranges.
JB18 speeds

Dimensions

Kubota JB18 Tires
Standard tires (ag)
Front: 5.00-12. Rear: 8-18
Dimensions
Wheelbase
50 inches 127 cm
Length
80.5 inches 204 cm
Width
38.2 inches 97 cm
Height
72.4 inches 183 cm
Weight
1301 lbs 590 kg
Ground clearance
11.2 inches 28 cm
Front tread
29.5 inches 74 cm
Rear tread
28.4/30.3 inches 72/76 cm

Recommended Implements & Sizing Guide

Engineering recommendations for Kubota JB18 based on its 18.2 HP power envelope and ASAE agricultural standards.

Implement & OperationRecommended SizeWorkload RatingEngineering Notes
Moldboard PlowPrimary Tillage
1 to 2 Bottom (12")1 - 2 铧 (30 cm)Light DutyIdeal for garden plots and light sandy soil.
Rotary Cutter / MowerMowing & Clearing
4 ft (48 in)1.2 mLight DutyPasture clipping and light brush under 1" diameter.
Rotary TillerSeedbed Prep
42 to 48 in105 - 120 cmLight DutyCovers compact tractor tire width.
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.

Fluids, Capacities & Working Autonomy

Standard fluid requirements, service intervals, and continuous runtime estimates for Kubota JB18.

Estimated Continuous Field Runtime: 3.9 hrs

Approximately 3.9 hours of continuous field operation at ~75% rated power on a full tank (3.7 gal / 14 L).

Estimated 75% Load Fuel Burn~0.9 gal/hr (3.6 L/hr)

Engine Crankcase Oil

SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours

Transmission & Hydraulic System

UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours

Engine Cooling System

50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours

Kubota JB18 Specification Unit Converter

Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota JB18.

Converted Equivalents:

Horsepower (HP)18.2 hp
Kilowatts (kW)13.6 kW
Metric Horsepower (PS / CV)18.5 PS

Direct Competitor Comparison

Compare Kubota JB18 against same-era industry alternatives in the same horsepower class.

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Kubota

Kubota JB18

Engine Power:Diesel (listed): 18.2 hp / 13.6 kW
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