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Kubota STW37

The Kubota STW37 is a compact utility tractor produced from 2015 onward. It features a Kubota D1803 1.8L 3-cylinder liquid-cooled diesel engine delivering 34.7 hp net and 36.6 hp gross. The tractor has a hydrostatic transmission with infinite forward and reverse speeds across 3 ranges. It includes four-wheel drive, mechanical rear differential lock, power steering, and wet disc brakes. The STW37 offers a two-post folding ROPS with an optional cab with air-conditioning. Hydraulics provide 2461 psi pressure and 7.9 gpm pump flow. The tractor hitch is category I with position control. PTO options include independent rear and mid PTOs with multiple RPM settings. Dimensions include a 63.4 inch wheelbase, 115.8 inch length, and a width of 46.7 inches minimum with R1 tires. The tractor weighs between 2436 and 2756 pounds depending on configuration. Attachments include a 152 cm mid-mount mower deck and a front-end loader (LA454ST) with 1213 lbs lift capacity. Electrical system features a negative ground, alternator charging system, 60 amp cab charging, and 12 volt battery.
Kubota STW37compact utility tractorKubota D1803 enginehydrostatic transmission36.6 hp tractor1.8L diesel tractorKubota tractor specs
Power36 hp
Founded2015 - 2025
ModelSTW37

Technical Specifications

Detailed specifications and technical data for Kubota STW37

Power

Engine (net):34.7 hp (25.9 kW)
PTO (claimed):25.5 hp (19.0 kW)
Engine (gross):36.6 hp (27.3 kW)

Engine

Type:diesel
Model:Kubota D1803
Cooling:liquid-cooled
Starter:electric
Cylinders:3-cylinder
Rated RPM:2700
Bore/Stroke:3.4x4.0 inches (86 x 102 mm)
Displacement:111.4 ci (1.8 L)
Starter volts:12
Rated Power (net):34.7 hp (25.9 kW)
Rated Power (gross):36.6 hp (27.3 kW)

Electrical

Ground:negative
Battery volts:12
Charging system:alternator
Cab Charging amps:60

Hydraulics

Pressure:2461 psi (169.7 bar)
Pump flow:7.9 gpm (29.9 lpm)

Mechanical

ROPS:Two-post folding ROPS. Cab optional with air-conditioning.
Drive:Four-wheel drive
Brakes:Wet disc brakes
Power steering:yes
Differential lock:mechanical rear

Production

Type:Compact Utility tractor
Manufacturer:Kubota
Production years:2015 -

Attachments

60" Mower deck:Type mid-mount Kubota RCK-60, Cutting width 60 inches (152 cm)
Front-end loader:LA454ST Loader with 1213 lbs lift (full at pin) (550 kg), 37° dump, 46° rollback, 94.5 inches height (at pin) (240 cm), 72.8 inches clearance (dumped) (184 cm)
Mid-mount mower deck:152 cm

Transmission

Type:hydrostatic
Gears:infinite forward and reverse (3-range)

Tractor hitch

Control:position control
Rear Type:I

Dimensions & Tires

Width:46.7 inches (118 cm) *Minimum width with R1 tires.
Length:115.8 inches (294 cm)
Rear tire:9.5-22
Wheelbase:63.4 inches (161 cm)
Cab Weight:2756 lbs (1250 kg)
Front tire:6.00-12
Rear tread:37.4 to 42.1 inches (94 to 106 cm)
Front tread:40.2 inches (102 cm)
ROPS Weight:2436 lbs (1104 kg)
Height (cab):85.2 inches (216 cm)
Height (ROPS):92.5 inches (234 cm)
Lawn/turf rear:13.6-16
Lawn/turf front:24x8.50-14
Ground clearance:9.3 inches (23 cm)

Power Take-off (PTO)

Mid PTO:independent
Rear PTO:independent
Mid PTO Type:2500
Rear PTO Type:540 (1.375)
Engine RPM (540):540@2670
Engine RPM (800):800@2717
Engine RPM (1000):1000@2717
Engine RPM (Mid PTO):2500@2734

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