Kubota B5100 - Horsepower, Weight, Specs, Problems, Price & More

The Kubota B5100 tractor is powered by a Kubota 0.5L 2-cyl diesel engine that provides 12hp / 8.9kW of horsepower and torque. It has a 4x2 2WD/4x4 MFWD 4WD drive configuration and a unsynchronized gear transmission.

• Engine
• Transmission
• Brakes
• Steering
• Common Problems
• What Users Like
• Technical Specifications

Engine

The engine is a Kubota Z500-1A diesel 2-cylinder liquid-cooled with a displacement of 31ci / 0.5L and bore/stroke of 2.625x2.75inches / 67x 70 mm. It has a power output of 12hp / 8.9kW and a rated rpm of 3000. The engine uses glow plugs for pre-heating and has a starter power of 1.1hp / 0.8kW. The coolant capacity is 3.2qts / 3.0L.

Transmission

The transmission is a 6-speed unsynchronized gear with three gears, plus reverse, in two ranges. The engine power output is 12hp / 8.9kW and the PTO (claimed) is 10hp / 7.5kW. The transmission is suitable for light-duty applications and has a dry disc clutch. The oil capacity is 9.0qts / 8.5L.

Brakes

The brakes are mechanical wet disc type. The Kubota B5100 tractor has a differential lock that is mechanical rear. The chassis is 4x2 2WD/4x4 MFWD 4WD. The engine is a Kubota Z500-1A diesel 2-cylinder liquid-cooled with a displacement of 31ci / 0.5L and bore/stroke of 2.625x2.75inches / 67x 70 mm. The cab is an open operator station with a two-post fixed ROPS available.

Steering

The steering is manual and uses a Kubota 0.5L 2-cylinder diesel engine. The fuel tank capacity is 2.1gal / 7.9L. The steering is suitable for light-duty applications and provides good maneuverability. The Kubota B5100 tractor has a differential lock that is mechanical rear.

Common Problems

Users have reported issues with the engine overheating during extended use. The brakes have been known to wear out quickly and require frequent maintenance. The transmission can be difficult to shift, especially when cold. The steering can be stiff and unresponsive at times. The hydraulics have been known to leak oil and require frequent maintenance.

What Users Like

Users appreciate the compact size and maneuverability of the Kubota B5100 tractor. The tractor is easy to operate and maintain, making it a popular choice for small farms and residential use. The tractor is also versatile, with the ability to handle a variety of tasks such as mowing, tilling, and hauling. Users also appreciate the fuel efficiency of the Kubota diesel engine, which helps to keep operating costs low.

Kubota B5100 Technical Specifications

Power
Engine	12hp / 8.9kW
Pto (claimed)	10hp / 7.5kW
Engine Detail
Description	Kubota Z500-1A diesel 2-cylinder liquid-cooled
Displacement	31ci / 0.5L
Bore/stroke	2.625x2.75inches / 67x 70 mm
Power	12hp / 8.9kW
Pre-heating	glow plugs
Rated Rpm	3000
Starter Volts	12
Starter Power	1.1hp / 0.8kW
Coolant Capacity	3.2qts / 3.0L
Engine
Description	Kubota 0.5L 2-cyl diesel
Fuel Tank	2.1gal / 7.9L
Transmission
Type	unsynchronized gear
Gears	6 forward and 2 reverse
Clutch	dry disc
Oil Capacity	9.0qts / 8.5L
Description	Three gears, plus reverse, in two ranges.
Mechanical
Chassis	4x2 2WD/4x4 MFWD 4WD
Differential Lock	mechanical rear
Steering	manual
Brakes	mechanical wet disc
Cab	Open operator station. Two-post fixed ROPS available.
Transmission	6-speed unsynchronized gear
Tires
Ag Front	4.00-9 (2WD)/4.50-10 (4WD)
Ag Rear	7.00-16
Lawn/turf Front	18x6.50-8
Lawn/turf Rear	27x8.50-15
Dimensions
Wheelbase	46.5inches / 118cm
Length	71.6inches / 181cm
Width	36.25inches / 92cm
Height (steering Wheel)	44.1inches / 112cm
2wd Weight	805lbs / 365kg
4wd Weight	893lbs / 405kg
4wd Clearance (front Axle)	8.625inches / 21cm
2wd Clearance (rear Axle)	10.25inches / 26cm
2wd Front Tread	26inches / 66cm
4wd Front Tread	26.4inches / 67cm
Rear Tread	25/29inches / 63/73 cm
Dimensions And Tires
Wheelbase	46.5inches / 118cm
Weight	805 to 893 pounds
Front Tire	4.00-9
Rear Tire	7.00-16
Hydraulics
Type	open center
Pump Flow	3.17gpm / 12.0lpm
Tractor Hitch
Rear Type	I
Rear Lift	300lbs / 136kg
Electrical
Ground	negative
Battery Volts	12
Battery Ah	35
Power Take Off Pto
Rear Pto	transmission
Rear Rpm	540/1000
Front Rpm	3000
Variants
B5100dt	4WD
B5100e	2WD
Engine Oil
Oil Capacity	2.4qts / 2.3L
Oil Change	75 h

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