| Manufacturer | Kubota |
| Price | - |
| Model | M8-181 |
| Equipment Type | Row-Crop Tractors |
| Factory | Winnigpeg, Manitoba, Canada |
OCED TRACTOR TEST 2217 2
| Description | Diesel 30-speed 4WD June 22 - 25, 2020 Link: OCED Tractor Test 2217 file PTO performance Drawbar performance |
| Max power | 158.26hp / 118.0kW |
| Fuel use | 9.9gal/hour / 37.5l/hour |
| Power at rated engine speed | 163.60hp / 122.0kW |
| Power at rated PTO speed | 167.00hp / 124.5kW |
| Max pull | 21975lbs / 9967kg |
KUBOTA M8-181 POWER
| Engine | 180hp / 134.2kW |
| PTO (claimed) | 145hp / 108.1kW |
| Drawbar (tested) | 158.26hp / 118.0kW |
| PTO (tested) | 169.73hp / 126.6kW |
ENGINE DETAIL
The Kubota M8-181 features a powerful Cummins B6.7 diesel engine with a displacement of 6.7 liters, offering 180 horsepower at 2,100 RPM, which is optimal for heavy-duty tasks like plowing and hauling. Its Tier 4 emissions compliance ensures lower environmental impact, making it suitable for operations in regulated areas. However, maintenance of the advanced emissions system could be a challenge, so operators need to be vigilant about servicing to maintain performance and compliance.
| Description | Cummins B6.7 diesel 6-cylinder liquid-cooled |
| Displacement | 408.3ci / 6.7L |
| Bore/Stroke | 4.21x4.88inches / 107x 124 mm |
| Emissions | Tier 4 |
| Power | 180hp / 134.2kW |
| Rated RPM | 2100 |
| Starter | electric |
| Starter volts | 12 |
KUBOTA M8-181 ENGINE
The Kubota M8-181, powered by a Cummins 6.7L 6-cylinder diesel engine, delivers robust performance optimal for heavy-duty agricultural tasks. Its substantial fuel tank capacity of 99 gallons allows for extended operational duration, reducing downtime for refueling, while the 9-gallon DEF tank ensures compliance with stringent emission regulations. Consideration should be made for potential higher fuel consumption during intensive operations, which may necessitate strategic refueling planning.
| Description | Cummins 6.7L 6-cyl diesel |
| Fuel tank | 99gal / 374.7L |
| Exhaust fluid (DEF) | 9 gal /34.1 L |
TRANSMISSIONS OVERVIEW
The Kubota M8-181 features a sophisticated 30-speed six-speed power shift continuously-variable transmission, providing exceptional flexibility in speed selection and efficiency across various applications. This transmission system allows for smooth power delivery and optimal torque management, enhancing productivity during tasks such as tilling or hauling. However, operators may need time to adapt to its complexity, which could pose a learning curve for those familiar with simpler transmission types.
| Description | 30-speed six-speed power shift continuously-variable transmission |
TRANSMISSION 1
The Kubota M8-181 features a six-speed power shift transmission, facilitating smooth gear transitions and enhancing operator efficiency. With a total of 30 forward and 15 reverse gears, it allows for precise speed control across diverse agricultural tasks, from plowing to transport. However, the complexity of power shift systems may necessitate additional training for operators unfamiliar with advanced transmission technologies.
| Type | six-speed power shift |
| Gears | 30 forward and 15 reverse |
TRANSMISSION 2
The Kubota M8-181 tractor features a continuously-variable transmission (CVT), allowing for seamless adjustments in speed without the need for multiple gear shifts, enhancing operator comfort and efficiency. The infinite forward and reverse capabilities provide superior maneuverability, making it ideal for tasks such as precision fieldwork and transport in tight spaces. However, potential maintenance costs for CVTs can be higher than traditional systems, necessitating regular servicing to ensure optimal performance.
| Type | continuously-variable transmission |
| Gears | infinite forward and reverse |
MECHANICAL
The Kubota M8-181 features a robust 4x4 MFWD chassis, enhancing traction and stability across diverse terrains, ideal for heavy-duty agricultural tasks. Its 30-speed six-speed power shift continuously-variable transmission allows for optimized power delivery and efficiency, benefiting operators in both high-speed transport and low-speed field work. Additionally, the hydraulic trailer brakes provide responsive stopping power, ensuring safety when towing loads, but may require additional maintenance compared to mechanical systems.
| Chassis | 4x4 MFWD 4WD |
| Steering | power |
| Trailer brakes | hydraulic |
| Cab | Cab standard with air-conditioning. |
| Transmissions | 30-speed six-speed power shift continuously-variable transmission |
HYDRAULICS
| Type | closed-center load sensing |
| Rear valves | 3 to 5 |
| Pump flow | 31.7gpm / 120.0lpm/42.2gpm / 159.7lpm |
| SCV flow | 31.7gpm / 120.0lpm |
| Steering flow | 11.1gpm / 42.0lpm |
TRACTOR HITCH
| Rear Type | III/IIIN |
| Rear lift (at 24 | 12478lbs / 5660kg/15543lbs / 7050kg |
| Front Hitch | IIIN |
| Front lift | 8818lbs / 3999kg |
POWER TAKE-OFF (PTO)
| Rear PTO | independent |
| Clutch | electro-hydraulic |
| Rear RPM | 540/1000 (1.375)/1000 (1.75) |
| Front RPM | 1000 (1.375) |
DIMENSIONS
| Wheelbase | 114inches / 289cm |
| Height | 128inches / 325cm |
| Shiping weight | 19510lbs / 8849kg |
| Rear axle | Bar: 4.13 by 118inches / 104by 2997 mm |
DIMENSIONS & TIRES
The Kubota M8-181 has a wheelbase of 114 inches, providing stability and improved traction, especially on uneven terrain. Weighing 19,510 lbs, its mass aids in better ground contact and lifting capacity, making it suitable for heavy-duty applications. However, this weight also presents challenges in maneuverability in tighter spaces and increases transportation costs.
| Wheelbase | 114inches / 289cm |
| Weight | 19510lbs / 8849kg |
KUBOTA M77 LOADER
| Height (to pin) | 181.2inches / 460cm |
| Clearance, dumped bucket | 143.1inches / 363cm |
| Dump angle | 54° |
| Clearance, level bucket | 169.4inches / 430cm |
| Rollback angle | 49° |
| Breakout force (at pin) | 6940lbs / 3147kg |
| Breakout force (at 800mm) | 10140lbs / 4599kg |
| Lift to full height (at pin) | 5200lbs / 2358kg |
| Lift to full height (at 800mm) | 5490lbs / 2490kg |
ELECTRICAL
| Ground | negative |
| Battery volts | 12 |