Kubota STV40 - Horsepower, Weight, Specs, Problems, Price & More

The Kubota STV40 tractor is powered by a Kubota 1.8L 3-cyl diesel engine that provides of horsepower and torque. It has a 4x4 MFWD 4WD drive configuration and a hydrostatic transmission.

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

Engine

The engine is a Kubota D1803M diesel 3-cylinder liquid-cooled with a displacement of 111.4ci / 1.8L and bore/stroke of 3.4x4.0inches / 86x 102 mm. It has a gross power of 34.7hp / 25.9kW and a rated power of 37.8hp / 28.2kW at 2700 rpm. The engine is started electrically with 12 volts. It is a reliable and efficient engine that provides enough power for the tractor to perform various tasks.

Transmission

The transmission is hydrostatic with infinite (3-range) forward and reverse gears. The engine (gross) produces 34.7hp / 25.9kW, the engine (net) produces 37.8hp / 28.2kW, and the PTO (claimed) produces 30.6hp / 22.8kW. The hydrostatic transmission provides smooth and easy operation, making it ideal for various applications. It is also efficient and requires minimal maintenance. The transmission is a key component of the tractor that ensures the power generated by the engine is transmitted to the wheels effectively.

Brakes

The brakes are wet disc, which provides reliable and efficient stopping power. The Kubota STV40 has a mechanical rear differential lock that ensures the tractor maintains traction on uneven terrain. The engine produces a gross power of 34.7hp / 25.9kW and a rated power of 37.8hp / 28.2kW at 2700 rpm. The brakes are a crucial safety feature that ensures the tractor can stop quickly and safely. The wet disc brakes are durable and require minimal maintenance.

Steering

The steering is power-assisted, making it easy to maneuver the tractor in tight spaces. The Kubota STV40 has a fuel tank capacity of 7.7gal / 29.1L, which provides enough fuel for extended use. The steering is a critical component of the tractor that ensures the operator can control the tractor effectively. The power-assisted steering reduces operator fatigue and makes it easier to operate the tractor for extended periods.

Common Problems

Users have reported issues with the chassis, which can be prone to rusting if not properly maintained. The differential lock can also be problematic, with some users reporting issues with engagement. The power steering system can be prone to leaks, which can cause the steering to become stiff. The brakes can also be problematic, with some users reporting issues with the brake pads wearing quickly. The cab can be noisy, which can be a problem for some users. The hydrostatic transmission can also be problematic, with some users reporting issues with overheating.

What Users Like

Users appreciate the versatility of the Kubota STV40, which can be used for various tasks, including mowing, tilling, and hauling. The standard tires (ag) provide excellent traction on various terrains, making it ideal for use on farms and other outdoor settings. The lawn/turf front and rear tires are also appreciated by users who use the tractor for landscaping. The industrial front and rear tires are ideal for use in construction and other heavy-duty applications. Users also appreciate the fuel efficiency of the Kubota D1803M engine, which provides enough power for the tractor to perform various tasks while consuming minimal fuel.

Kubota STV40 Technical Specifications

Power
Engine (gross)	34.7hp / 25.9kW
Engine (net)	37.8hp / 28.2kW
Pto (claimed)	30.6hp / 22.8kW
Engine Detail
Description	Kubota D1803M diesel 3-cylinder liquid-cooled
Displacement	111.4ci / 1.8L
Bore/stroke	3.4x4.0inches / 86x 102 mm
Power (gross)	34.7hp / 25.9kW
Rated Power (ece R24)	37.8hp / 28.2kW
Rated Rpm	2700
Starter	electric
Starter Volts	12
Engine
Description	Kubota 1.8L 3-cyl diesel
Fuel Tank	7.7gal / 29.1L
Transmission
Type	hydrostatic
Gears	infinite (3-range) forward and reverse
Mechanical
Chassis	4x4 MFWD 4WD
Differential Lock	mechanical rear
Steering	power
Brakes	wet disc
Cab	Two-post ROPS. Cab optional.
Transmission	hydrostatic
Tires
Standard Tires (ag)	Front: 6.00-12. Rear: 9.5-22
Lawn/turf Front	24x8.50-14
Lawn/turf Rear	13.6-16
Industrial Front	23x8.50-14
Industrial Rear	12.4-16
Dimensions
Wheelbase	63.4inches / 161cm
Length	105.5inches / 267cm
Width	48inches / 121cm *Minimum width with R1 tires.
Height (rops)	92.5inches / 234cm
Height (cab)	85inches / 215cm
Rops Weight	2150lbs / 975kg
Cab Weight	2502lbs / 1134kg
Ground Clearance	9.3inches / 23cm
Front Tread	40.6inches / 103cm
Rear Tread	37.4 to 42.1inches / 94to 106 cm
Dimensions And Tires
Wheelbase	63.4inches / 161cm
Weight	2150 to 2502 pounds
Front Tire	6.00-12
Rear Tire	9.5-22
Hydraulics
Pressure	2461psi / 169.7bar
Pump Flow	6.1gpm / 23.1lpm
Tractor Hitch
Rear Type	I
Control	position control
Rear Lift (at Ends)	2535lbs / 1149kg
Electrical
Ground	negative
Charging System	alternator
Battery Volts	12
Power Take Off Pto
Rear Pto	independent
Rear Rpm	540 (1.375)
Engine Rpm	2500@2734
Mid Rpm	2500

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