Steyr M 9078 Tractor

Manufacturer Steyr
Price -
Model M 9078
Equipment Type -
Factory

STEYR M 9078 POWER

Engine 78hp / 58.2kW

ENGINES OVERVIEW

The Steyr M 9078 features a robust MWM 4.2L diesel engine or an alternative Sisu 4.4L diesel engine, both offering efficient performance for agricultural tasks. Key advantages include enhanced fuel efficiency and good torque output, which are vital for heavy-duty operations. However, the choice between engines may affect maintenance and parts availability, necessitating consideration of local support and service options.

Description MWM 4.2L 4-cyl diesel Sisu 4.4L 4-cyl

ENGINE DETAIL 1

The Steyr M 9078 tractor is powered by a MWM WD 401.81 turbo diesel engine, offering a good combination of power at 78 hp and decent torque at 220 lb-ft, making it suitable for various agricultural applications. With a displacement of 4.2L and a rated RPM of 2300, it operates efficiently within its power band, though the torque peak at 1500 RPM suggests optimal performance during low to mid-range tasks. A potential challenge may arise when operating at higher RPMs, as it may lead to increased fuel consumption and wear if not managed properly.

Description MWM WD 401.81 turbo diesel 4-cylinder
Displacement 253.6ci / 4.2L
Bore/Stroke 4.13x4.72inches / 105x 120 mm
Power 78hp / 58.2kW
Rated RPM 2300
Torque 220 lb-ft /298.3 Nm
Torque RPM 1500

ENGINE DETAIL 2

The Steyr M 9078 is powered by a Sisu 420.81 turbocharged 4-cylinder engine with a displacement of 4.4L, providing 78 hp and a peak torque of 225 lb-ft at 1300 RPM, which enables strong low-end performance suitable for heavy draft work. The bore and stroke dimensions (4.25 x 4.72 inches) suggest a balance of power delivery and efficiency, but may lead to higher wear rates in demanding applications. While its rated RPM of 2300 allows for decent operational speed, operators should consider the torque curve for optimal performance during varied load conditions to avoid potential strain on drivetrain components.

Description Sisu 420.81 turbo 4-cylinder
Displacement 268.3ci / 4.4L
Bore/Stroke 4.25x4.72inches / 108x 120 mm
Power 78hp / 58.2kW
Rated RPM 2300
Torque 225 lb-ft /305.1 Nm
Torque RPM 1300

STEYR M 9078 ENGINES

The Steyr M 9078 tractor is equipped with a choice of MWM 4.2L or Sisu 4.4L 4-cylinder diesel engines, which provide reliable power and efficiency for various farming tasks. The standard 26.4-gallon fuel tank can limit operational range, but the optional 39.6-gallon tank enhances endurance for extended tasks. This versatility allows farmers to choose the best engine and fuel configuration based on their specific workload and field requirements.

Description MWM 4.2L 4-cyl diesel Sisu 4.4L 4-cyl
Fuel tank 26.4gal / 99.9L/39.6gal / 149.9L optional

TRANSMISSION 1

The Steyr M 9078 features a synchro transmission with 16 forward and 8 reverse gears, allowing for smooth gear shifting and precise control during operation. This extensive gear range enhances versatility for various tasks, from plowing to transport, while maintaining optimal engine performance. However, operators may need to adapt to the shifting complexity, especially in demanding field conditions.

Transmission synchro
Gears 16 forward and 8 reverse

TRANSMISSION 2

The Steyr M 9078 features a synchronized transmission with 16 forward and reverse gears, providing operators with precise control over speed and torque for varying agricultural tasks. This extensive gear range enables optimal performance in diverse field conditions, enhancing productivity and efficiency. However, operators may face a learning curve with gear selection to maximize the tractor's capabilities effectively.

Transmission synchro
Gears 16 forward and reverse

MECHANICAL

The Steyr M 9078 offers versatile 2WD/4WD configurations, providing adaptability for different terrain conditions. Its hydrostatic power steering ensures enhanced maneuverability, particularly beneficial in tight spaces or during intricate tasks. The 16-speed transmission allows for precise control over speed and torque, making it suitable for a wide range of agricultural applications, though it may have a steeper learning curve for operators accustomed to simpler systems.

Chassis 4x2 2WD/4x4 MFWD 4WD optional
Steering hydrostatic power
Brakes disc
Transmission 16-speed

HYDRAULICS

Total flow 13.2gpm / 50.0lpm/22.2gpm / 84.0lpm optional

TRACTOR HITCH

Rear lift 10804.5lbs / 4900kg

POWER TAKE-OFF (PTO)

Rear RPM 430/540 / 750/1000

STEYR M 9078 TIRES

The Steyr M 9078 features a front tire size of 13.6R24 and a rear tire size of 16.9R34, providing a balanced footprint that enhances stability and traction on varied terrains. The larger rear tires are advantageous for improved pulling power, especially in broader agricultural tasks, but they may limit maneuverability in tighter spaces. Optimal scenarios for this tractor include heavy-duty fieldwork and transport operations over uneven or soft ground, where maximizing traction is critical.

Ag front 13.6R24
Ag rear 16.9R34

DIMENSIONS

Wheelbase 97.6inches / 247cm
Length 165.7inches / 420cm
Height 104.7inches / 265cm
Weight 8,710lbs / 3950kg

DIMENSIONS & TIRES

The Steyr M 9078 tractor, with a wheelbase of 97.6 inches (247 cm) and a substantial weight of 8,710 lbs (3950 kg), offers enhanced stability and traction for heavy-duty agricultural tasks. Its tire configuration, featuring a 9.00-16 front tire and a 16.9R34 rear tire, facilitates improved ground contact and flotation in varied field conditions. However, the tractor's size may limit maneuverability in tighter spaces, making it best suited for larger farms or open fields where stability and pulling power are prioritized.

Wheelbase 97.6inches / 247cm
Weight 8,710lbs / 3950kg
Front tire 9.00-16
Rear tire 16.9R34


Last Updated 2025-01-01
Stephen is a passionate tractor hobbyist with a deep-seated love for all things mechanized and agricultural. Growing up in a rural setting, he developed a fascination with these mighty machines that have played a crucial role in shaping the farming industry.

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