Compare/Kubota M135GX vs Kubota M6121

Kubota M135GX vs Kubota M6121

Verdict: Kubota M135GX vs Kubota M6121

The Kubota M135GX and the Kubota M6121 are both tractors — here is how they stack up on the figures that matter. Kubota M135GX leads on rated power with 118 hp against 115 hp. Kubota M135GX is the lighter machine (4,705 kg vs 6,900 kg), which helps on soft ground and transport, while the heavier model carries more ballast for traction-limited draft work. Kubota M6121 holds more fuel (330.1 L vs 190.0 L) for longer stints between fills. Kubota M6121 is the newer design (2018 vs 2012). In short: choose the Kubota M135GX for outright pulling power, or the Kubota M6121 if a tighter budget and lighter footprint matter more. Compare the full spec tables below before booking a demo.

Tune the fit score

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

118 hp

115 hp

Confidence

98%

Guide price

—

Overview

Manufacturer

KubotaReference

Eight power shift gears in three ranges. Power shuttle.Reference

Six power shift gears in five synchronized ranges with power shuttle.Reference

Differential lock

electro-hydraulic front and rearReference

—

Steering

hydrostatic powerReference

—

Engine

Fuel tank

190.0 LReference

330.1 LReference

Engine

100.7 kWReference

—

Displacement

6.1 LReference

Bore/Stroke

118 x 140 mmReference

Emissions

Interim Tier IVReference

—

Emission control

exhaust gas recirculation and diesel particulate filter (DPF) (EGR)Reference

—

Power

100.7 kWReference

—

Fuel system

common rail direct injectionReference

—

Air cleaner

dual dry elementReference

—

Rated RPM

2200Reference

2100Reference

Starter

electricReference

Starter volts

12Reference

Fuel Type

dieselReference

—

No of Cylinders

4 cylinderReference

—

Rated engine speed

2,200 RPMReference

—

Bore and stroke

4.65x5.51 inchesReference

—

Cooling system

liquid-cooledReference

—

Exhaust fluid (DEF)

—

37.9 LReference

Engine (gross)

—

85.8 kWReference

Engine (max)

—

111.9 kWReference

Rated Power (gross)

—

85.8 kWReference

Maximum Power (gross)

—

111.9 kWReference

Torque

—

600.0 NmReference

Torque RPM

—

1500Reference

Transmission

Intelli-Shift CreeperReference

—

Type

eight-speed power shiftReference

six-speed power shiftReference

Gears

32 forward and reverseReference

30 forward and 15 reverseReference

Transmission Type

PowershiftReference

—

Wheel Drive

4WDReference

—

PTO & Hydraulics

PTO (claimed)

88.0 kWReference

—

Valves

2 to 4Reference

3Reference

Pump flow

70.8 lpmReference

110.1 lpmReference

Steering flow

60.6 lpmReference

—

Rear Type

IIReference

IIIReference

Control

electronic lower-link draft controlReference

lower-link draft sensingReference

Rear lift (at 24"/610mm)

4285 kgReference

—

Rear Arms

telescopic lower link endsReference

—

Rear PTO

independentReference

Clutch

electro-hydraulic wet discReference

Rear PTO Type

540/1000 (1.375)Reference

540/540E/1000/1000EReference

Rear lift

—

9399 kgReference

Front lift

—

3900 kgReference

Front PTO Type

—

1000Reference

Dimensions

Wheelbase

268 cmReference

272 cmReference

Weight

4705 kgReference

6900 kgReference

Front tire

14.9R24Reference

540/65R28Reference

Rear tire

18.4R38Reference

650/65R38Reference

Ag front

14.9R24Reference

—

Ag rear

18.4R38Reference

—

Length

436 cmReference

477 cmReference

Width

217 cmReference

249 cmReference

Height

287 cmReference

—

Ground clearance

56 cmReference

—

Front axle

Suspended 4WDReference

—

Front tread

177 to 187 cmReference

—

Rear tread

159 to 209 cmReference

—

Standard tires (ag)

—

Front: 540/65R28. Rear: 650/65R38Reference

Height (cab)

—

303 cmReference

Shipping weight

—

6900 kgReference

Kubota M135GX attachments

M135GX Serial Number Location

Electrical

Ground

negativeReference

Charging system

alternatorReference

Charging amps

80Reference

200Reference

Battery CCA

1090Reference

1400Reference

Battery volts

12Reference

Battery AH

160Reference

170Reference

Battery size

160 AHReference

—

Total cold cranking amps

1,090 CCAReference

—

General

Make & Model

KubotaReference

—

SCV control

JoystickReference

—

Front Axle Type

4WD | Suspended 4WDReference

—

Capacities

Capacity

374 ciReference

—

Hydraulics

Capacity Valves

16 ValvesReference

—

Remote Valves

2 to 4 ValvesReference

—

Steering & Implements flow

16 gpm (18.7 gpm)Reference

—

Rear Hitch category (SAE designation)

Category IIReference

—

Rear Hitch Sensing Type

electronic lower-link draft controlReference

—

Power

Max Power

135 hpReference

—

PTO

PTO Power

118 hpReference

—

Rear PTO Power

AvailableReference

—

Rear PTO RPM

540 RPMReference

—

Steering & brakes

Brakes

hydraulic wet discReference

—

Steering type

hydrostatic powerReference

—

Dimensions & weight

Overall Height

287.5 cmReference

—

Overall Length

436.1 cmReference

—

Overall Width

217.9 cmReference

—

Overall weight

4,705.1 kgReference

—

Wheels & tyres

Rear Wheel Type

ag: 18.4R38Reference

—

Rear wheel tread range

62.6 to 82.3 inchesReference

—

Front Wheel Type

ag:14.9R24Reference

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Front Wheel tread range

69.9 to 73.8 inchesReference

—

Operator station

Cab Availability

AvailableReference

—

Cab Air conditioning, temperature differential

Grand X Cab standard with air-conditioningReference

—

Seat Suspension

TRUEReference

—

Kubota M6121 attachments

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.