Kubota M6121
The Kubota M6121 is a tractor produced by Kubota. It is equipped with a 373.7 ci 6.1 L engine. The listed engine power is Diesel (gross): 115 hp / 85.8 kW. Transmission: 30 forward and 15 reverse. Operating weight: 15212 lbs 6900 kg.
Engine Power
Diesel (gross): 115 hp / 85.8 kW
Fuel & Capacities
87.2 gal
330.1 L
Transmission
30 forward and 15 reverse
Operating Weight
15212 lbs
6900 kg
Overview
 | 2018 - 2020
Utility tractor |
|---|
Production | |
|---|---|
Manufacturer | Kubota |
Utility tractor | |
Kubota M6121 Engine | |
|---|---|
Kubota 6.1L 4-cyl diesel | |
Fuel tank | 87.2 gal
330.1 L |
Exhaust fluid (DEF) | 10 gal
37.9 L |
Engine details ...  | |
Kubota M6121 Transmission | |
|---|---|
30-speed six-speed power shift | |
Transmission details ...  |
Kubota M6121 Power | |
|---|---|
Engine (gross) | 115 hp
85.8 kW |
Engine (max) | 150 hp
111.9 kW |
Mechanical | |
|---|---|
Four-wheel drive | |
Cab standard with air-conditioning. |
Hydraulics | |
|---|---|
Type | load sensing |
Valves | 3 |
Pump flow | 29.1 gpm
110.1 lpm |
Tractor hitch | |
|---|---|
Rear Type | III |
Control | lower-link draft sensing |
Rear lift | 16535 lbs
7500 kg |
20723 lbsOptOptional
9399 kg | |
Front lift | 8598 lbs
3900 kg |
Power Take-off (PTO) | |
|---|---|
Rear PTO | independent |
Rear PTO Type | 540/540E/1000/1000E |
Front PTO Type | 1000 |
Dimensions & Tires | |
|---|---|
Wheelbase | 107.1 inches
272 cm |
Weight | 15212 lbs
6900 kg |
Front tire | 540/65R28 |
Rear tire | 650/65R38 |
Full dimensions and tires ...  | |
Electrical | |
|---|---|
Ground | negative |
Charging system | alternator |
Charging amps | 150 |
200 OptOptional | |
Battery CCA | 1400 |
Battery volts | 12 |
Battery AH | 170 |
Engine
Engine Detail — 373.7 ci / 6.1 L Diesel
Manufacturer | Kubota V6108 |
Configuration | turbocharged intercooled diesel, 4-cylinder 16-valve, liquid-cooled |
Displacement | 373.7 ci
6.1 L |
Bore/Stroke | 4.65x5.51 inches
118 x 140 mm |
Rated Power (gross) | 115 hp
85.8 kW |
Maximum Power (gross) | 150 hp
111.9 kW |
Rated RPM | 2100 |
Torque | 442.5 lb-ft
600.0 Nm |
Torque RPM | 1500 |
Starter | electric |
Starter volts | 12 |
Transmission
Transmission — 30 forward and 15 reverse six-speed power shift
Type | six-speed power shift |
Gears | 30 forward and 15 reverse |
Clutch | electro-hydraulic wet disc |
Six power shift gears in five synchronized ranges with power shuttle. | |
Dimensions
Kubota M6121 Tires | |
|---|---|
Standard tires (ag) | Front: 540/65R28. Rear: 650/65R38 |
Dimensions | |
|---|---|
Wheelbase | 107.1 inches
272 cm |
Length | 187.8 inches
477 cm |
Width | 98.4 inches
249 cm |
Height (cab) | 119.3 inches
303 cm |
Shipping weight | 15212 lbs
6900 kg |
Recommended Implements & Sizing Guide
Engineering recommendations for Kubota M6121 based on its 115 HP power envelope and ASAE agricultural standards.
| Implement & Operation | Recommended Size | Workload Rating | Engineering Notes |
|---|---|---|---|
Moldboard PlowPrimary Tillage | 4 to 5 Bottom (16-18")4 - 5 铧 (40-45 cm) | Heavy Duty | Heavy primary tillage; semi-mounted hitch recommended. |
Rotary Cutter / MowerMowing & Clearing | 10 to 12 ft Flex-Wing3.0 - 3.6 m 折叠双翼 | Heavy Duty | Wide swath pasture and crop residue shredding. |
Rotary TillerSeedbed Prep | 90 to 120 in Heavy Duty230 - 300 cm 重型旋耕机 | Commercial / Field Scale | Deep intensive seedbed preparation for commercial row crops. |
Disc HarrowSecondary Tillage | 10 to 14 ft Tandem / Offset3.0 - 4.2 m 重型交错耙 | Heavy Duty | Aggressive residue cutting in corn/cotton stubble. |
Hay BalerHay & Forage | 5x6 Round Baler or 3x3 Mid Square1.5x1.8 m 大圆捆或中型方捆机 | Heavy Duty | High density baling; requires minimum 85 PTO HP. |
Sizing & Soil Condition NoteActual implement sizing varies depending on local soil conditions (heavy clay vs sandy loam), field slope, and operating speed. Heavy tillage implements may require front ballast weights and wheel weights.
Fluids, Capacities & Working Autonomy
Standard fluid requirements, service intervals, and continuous runtime estimates for Kubota M6121.
Estimated Continuous Field Runtime: 14.6 hrs
Approximately 14.6 hours of continuous field operation at ~75% rated power on a full tank (87.2 gal / 330.1 L).
Estimated 75% Load Fuel Burn~6 gal/hr (22.6 L/hr)
Engine Crankcase Oil
SAE 15W-40 (Heavy Duty Diesel)
Standard Spec: API CK-4 / CJ-4 Heavy Duty
Service Interval: 150 – 250 Hours
Transmission & Hydraulic System
UTTO (Universal Tractor Transmission Oil)
Standard Spec: ISO VG 46 / 68 (Wet Brake & Trans Compatible)
Service Interval: 600 – 1000 Hours
Engine Cooling System
50/50 Ethylene Glycol Pre-mix
Standard Spec: ASTM D6210 / Heavy-Duty OAT Antifreeze
Service Interval: 2 Years / 1500 Hours
Kubota M6121 Specification Unit Converter
Convert power, fluid capacities, and operating weights between metric and imperial standards for Kubota M6121.
Converted Equivalents:
Horsepower (HP)115 hp
Kilowatts (kW)85.8 kW
Metric Horsepower (PS / CV)116.6 PS
Direct Competitor Comparison
Compare Kubota M6121 against same-era industry alternatives in the same horsepower class.
Current Model
Kubota
Kubota M6121
Engine Power:Diesel (gross): 115 hp / 85.8 kW
★ Baseline Reference
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