Compare/Kubota KL40Z vs Kubota L3970

Kubota KL40Z vs Kubota L3970

Verdict: Kubota KL40Z vs Kubota L3970

The Kubota KL40Z and the Kubota L3970 are both tractors — here is how they stack up on the figures that matter. Both are rated at the same 39 hp. Kubota KL40Z is the lighter machine (1,814 kg vs 4,057 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Kubota L3970 is the newer design (2026 vs 2012). Use the full side-by-side spec tables below to weigh the details against your own operation, and confirm with a dealer demo.

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Tell us about your operation

Acreage600 acBudgetMain crop / use

Fit & specs

Kubota

Fit score

Best match

Clear

Kubota

Fit score

Best match

Clear

Rated power

39 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

KubotaReference

Three range transmission. Twelve forward, eight reverse, in creeper and medium range. Six forward, four reverse, in high-speed range.Reference

liquid-cooledReference

Variants

KL40Z

wheeledReference

—

KL40Z-PC

half-trackReference

—

Engine

Fuel tank

39.0 LReference

—

Engine

29.4 kWReference

—

Displacement

2.2 LReference

1.8 LReference

Bore/Stroke

87 x 92 mmReference

87 x 102 mmReference

Power

29.4 kWReference

—

Rated RPM

2600Reference

2300Reference

Starter

electricReference

Starter volts

12Reference

Fuel Type

dieselReference

—

No of Cylinders

4 cylinderReference

—

Rated engine speed

2,600 rpmReference

—

Bore and stroke

3.43x3.64 inchesReference

—

Cooling system

liquid-cooledReference

—

Engine (gross)

—

29.1 kWReference

Power (gross)

—

29.1 kWReference

Fuel system

—

common rail direct injectionReference

Torque

—

148.3 NmReference

Transmission

Dual DriveReference

—

Type

continuously-varaible transmissionReference

hydrostaticReference

Gears

30 forward and 20 reverseReference

infinite forward and reverse (3-range)Reference

Clutch

dry discReference

—

Transmission Type

CVTReference

—

Wheel Drive

4WDReference

—

PTO & Hydraulics

Rear Type

IReference

Rear PTO Type

540 (1.375)Reference

Engine RPM

-770@2600Reference

540@2299Reference

PTO (claimed)

—

23.0 kWReference

Rear valves

—

3Reference

Pump flow

—

37.2 lpmReference

Rear lift (at ends)

—

1700 kgReference

Rear lift (at 24"/610mm)

—

1200 kgReference

Rear PTO

—

independentReference

Dimensions

Wheelbase

188 cmReference

195 cmReference

Weight

1814 kgReference

4057 to 4387 poundsReference

Front tire

8-18Reference

7.00-16Reference

Rear tire

12.4-28Reference

12.4-24Reference

Standard tires (ag)

Front: 8-18. Rear: 12.4-28Reference

Front: 7.00-16. Rear: 12.4-24Reference

Length

338 cmReference

309 cmReference

Width

152 cmReference

151 cmReference

Height (ROPS)

231 cmReference

246 cmReference

Height (cab)

228 cmReference

231 cmReference

Ground clearance

40 cmReference

34 cmReference

Front tread

119 cmReference

115 cmReference

Rear tread

120 to 143 cmReference

119 to 148 cmReference

ROPS Weight

—

1840 kgReference

Cab Weight

—

1989 kgReference

Electrical

Ground

negativeReference

Battery volts

12Reference

Battery CCA

—

680Reference

Capacities

Capacity

134.1 ciReference

—

Power

Max Power

39.4 hpReference

—

PTO

Rear PTO Power

AvailableReference

—

Rear PTO RPM

540 RPMReference

—

Engine Speed on Rear PTO speed

1,298@2,600 rpmReference

—

Steering & brakes

Brakes

mechanical wet discReference

—

Steering type

powerReference

—

Hydraulics

Rear Hitch category (SAE designation)

Category IReference

—

Dimensions & weight

Height Over Cab

228.1 cmReference

—

Height Over ROPS

231.9 cmReference

—

Overall Length

338.6 cmReference

—

Overall Width

152.4 cmReference

—

Overall weight

1,814.8 kgReference

—

Wheels & tyres

Rear Wheel Type

12.4-28Reference

—

Rear wheel tread range

47.6 to 56.3 inchesReference

—

Front Wheel Type

45,522Reference

—

Front Wheel tread range

119.9 cmReference

—

General

Rollover protective structure

Two-post ROPSReference

—

Operator station

Cab Availability

AvailableReference

—

Kubota L3970 attachments

Attachment overview

Kubota BH92A Backhoe

Backhoe type

—

Kubota BH92A BackhoeReference

Transport height

—

260 cmReference

2-Foot flat digging depth

—

265 cmReference

Reach from pivot

—

381 cmReference

Loading height

—

224 cmReference

Bucket Rotation

—

180°Reference

Fit score weighs budget, operation size, crop match and data confidence against the details above. It’s guidance, not advice — always confirm with a dealer demo.