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Kubota B5100

The Kubota B5100 is a sub-compact utility tractor produced from 1978 to 1984 by Kubota in Japan. It features a 12 hp liquid-cooled 2-cylinder diesel engine, a 6-speed unsynchronized transmission, and is available in both 2WD and 4WD variants. The tractor offers mechanical rear differential lock, manual steering, mechanical wet disc brakes, and an open operator station with an optional two-post fixed ROPS. It has a rear Type I hitch with a 300 lbs lift capacity and PTO options including rear transmission-driven 540/1000 and front 3000 RPM PTO. The B5100 is designed for versatility in small-scale farming and landscaping tasks.
Kubota B5100tractorsub-compact utilitydiesel engine12 hp6-speed transmission2WD4WDPTOhydraulicsdimensions
Power12 hp
Founded1978 - 1984
ModelB5100

Technical Specifications

Detailed specifications and technical data for Kubota B5100

Power

Engine power:12 hp (8.9 kW)
PTO (claimed):10 hp (7.5 kW)

Tires

Ag rear:7.00-16
Ag front:4.00-9 (2WD), 4.50-10 (4WD)
Lawn/turf rear:27x8.50-15
Lawn/turf front:18x6.50-8

Engine

Type:diesel
Model:Kubota Z500-1A
Power:12 hp (8.9 kW)
Cooling:liquid-cooled
Cylinders:2-cylinder
Fuel tank:2.1 gal (7.9 L)
Rated RPM:3000
Bore/Stroke:2.625x2.75 inches (67 x 70 mm)
Pre-heating:glow plugs
Displacement:31 ci (0.5 L)
Starter power:1.1 hp (0.8 kW)
Starter volts:12
Coolant capacity:3.2 qts (3.0 L)
Engine oil capacity:2.4 qts (2.3 L)
Oil change interval:75 h

Dimensions

Width:36.25 inches (92 cm)
Length:71.6 inches (181 cm)
Wheelbase:46.5 inches (118 cm)
2WD Weight:805 lbs (365 kg)
4WD Weight:893 lbs (405 kg)
Rear tread:25/29 inches (63/73 cm)
2WD Front tread:26 inches (66 cm)
4WD Front tread:26.4 inches (67 cm)
Height (steering wheel):44.1 inches (112 cm)
2WD Clearance (rear axle):10.25 inches (26 cm)
4WD Clearance (front axle):8.625 inches (21 cm)

Electrical

Ground:negative
Battery AH:35
Battery volts:12

Hydraulics

Type:open center
Pump flow:3.17 gpm (12.0 lpm)

Mechanical

Drive:Two- or four-wheel drive
Brakes:Mechanical wet disc brakes
Steering:Manual
Operator station:Open operator station. Two-post fixed ROPS available.
Differential lock:mechanical rear

Production

Type:Sub-Compact Utility tractor
Built in:Japan
Variants:B5100DT 4WD, B5100E 2WD
Manufacturer:Kubota
Years produced:1978 - 1984

Transmission

Type:unsynchronized gear
Gears:6 forward and 2 reverse
Clutch:dry disc
Description:Three gears, plus reverse, in two ranges.
Oil capacity:9.0 qts (8.5 L)

Tractor hitch

Rear Type:I
Rear lift capacity:300 lbs (136 kg)

Power Take-off (PTO)

Rear PTO:transmission
Rear PTO Type:540/1000
Front PTO Type:3000

Related Models

Kubota B5200

Model:B5200

Kubota B6100

Model:B6100