Kubota L3970: all source data
All 52 values recorded for this model, as the source lists them and in its units. The spec sheet shows the same data checked, typed and converted.
Overview
Production| Manufacturer | Kubota |
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| (no label) | Compact Utility tractor |
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| (no label) | Original price was $34,979 in 2026 |
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Engine| (no label) | Kubota 1.8L 3-cyl diesel |
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Transmission| (no label) | hydrostatic |
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Power| Engine (gross) | 39 hp | 29.1 kW |
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| PTO (claimed) | 30.9 hp | 23.0 kW |
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Mechanical| (no label) | Four-wheel drive |
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| (no label) | Power steering |
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| (no label) | Wet disc brakes |
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| (no label) | Two-post folding ROPS. Cab optional with air-conditioning. |
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Hydraulics| Rear valves | 3 |
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| Pump flow | 9.83 gpm | 37.2 lpm |
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Hitch| Rear Type | I |
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| Rear lift (at ends) | 3748 lbs | 1700 kg |
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| Rear lift (at 24"/610mm) | 2646 lbs | 1200 kg |
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Pto| Rear PTO | independent |
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| Rear PTO Type | 540 (1.375) |
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| Engine RPM | 540@2299 |
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Dimensions| Wheelbase | 77 inches | 195 cm |
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| Weight | 4057 to 4387 pounds |
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| Front tire | 7.00-16 |
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| Rear tire | 12.4-24 |
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Electrical| Ground | negative |
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| Battery CCA | 582 |
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| Battery CCA | 680 |
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| Battery volts | 12 |
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Engine
Engine detail| (no label) | Kubota D1803 |
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| (no label) | turbocharged diesel |
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| (no label) | 3-cylinder |
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| (no label) | liquid-cooled |
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| Displacement | 111.4 ci | 1.8 L |
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| Bore/Stroke | 3.43x4.03 inches | 87 x 102 mm |
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| Power (gross) | 39 hp | 29.1 kW |
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| Fuel system | common rail direct injection |
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| Rated RPM | 2300 |
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| Torque | 109.4 lb-ft | 148.3 Nm |
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| Starter | electric |
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| Starter volts | 12 |
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Transmission
Transmission| Type | hydrostatic |
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| Gears | infinite forward and reverse (3-range) |
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Dimensions
Tires| Standard tires (ag) | Front: 7.00-16. Rear: 12.4-24 |
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Dimensions| Wheelbase | 77 inches | 195 cm |
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| Length | 121.9 inches | 309 cm |
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| Width | 59.8 inches | 151 cm |
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| Height (ROPS) | 97.2 inches | 246 cm |
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| Height (cab) | 91.3 inches | 231 cm |
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| ROPS Weight (ROPS) | 4057 lbs | 1840 kg |
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| Cab Weight (Cab) | 4387 lbs | 1989 kg |
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| Ground clearance | 13.5 inches | 34 cm |
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| Front tread | 45.5 inches | 115 cm |
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| Rear tread | 47.2 to 58.3 inches | 119 to 148 cm |
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