Acremaster 403 tractor

Acremaster 403

Power

308 hp

Production

1978-1984

Engine

Diesel, 10-cylinder

Transmission

Acremaster

Weight

21605 lbs [9800 kg]

Drive

4WD

From the same series:

402
404

Introduction

Acremaster 403 Four-Wheel Drive Tractor

The Acremaster 403 is a heavy-duty four-wheel drive tractor produced in Merredin, Australia, between 1978 and 1984. Designed for large-scale agricultural operations, it belongs to the 400-series line, focusing on high-traction performance and durability.

Engine and Performance

The tractor is powered by a liquid-cooled Mercedes-Benz OM403 V10 diesel engine. With a displacement of 16.0 liters, it produces 308 hp (229.7 kW) at a rated speed of 2350 RPM. The engine delivers a maximum torque of 759.7 lb-ft (1030.2 Nm) at 1500 RPM, providing the necessary pulling power for intensive field work.

Transmission Systems

The machine offers two transmission configurations to suit different operational requirements. The standard Acremaster gear transmission provides 9 forward and 3 reverse speeds. Alternatively, a Twin Disc 1400 power shift transmission is available, offering 12 forward and 2 reverse speeds, allowing for smoother gear transitions under load.

Mechanical Design and Dimensions

Built on an articulated chassis, the 403 features four-wheel drive and articulated power steering to assist in maneuvering the heavy frame. The unit weighs 21,605 lbs (9,800 kg) and measures 599 cm in length and 382 cm in width. It is equipped with 23.1x30 agricultural tires on both the front and rear axles to manage traction requirements.

Operator Environment

The tractor comes standard with an enclosed cab designed to improve operator conditions during long work shifts. The cab is equipped with factory-installed air-conditioning to maintain environmental control.

Conclusion

The Acremaster 403 is a robust, high-horsepower tractor engineered for demanding traction tasks. Its combination of a high-displacement V10 engine, multiple transmission options, and stable articulated platform makes it a suitable machine for large-acreage farming and heavy-duty agricultural applications.

Production Information of Acremaster, 403

  • Four-wheel Drive (4WD) tractor
  • Built in Merredin, Australia
ManufacturerAcremaster

Dimension and Tires Information of Acremaster, 403

Length236.2 inches [599 cm]
Weight21605 lbs [9800 kg]
Width150.4 inches [382 cm]
Height (exhaust)129.9 inches [329 cm]
Ag front23.1x30
Ag rear23.1x30

Engine Specifications of Acremaster, 403

  • Mercedes-Benz OM403
  • Liquid-cooled V10
  • Diesel
  • 10-cylinder
Torque RPM1500
Displacement973.3 ci [16.0 L]
Compression17.5:1
Bore/Stroke4.92x5.12 inches [125 x 130 mm]
Starter typeElectric
Torque759.7 lb-ft [1030.2 Nm]
Rated RPM2350
Power308 hp [229.7 kW]

Transmission Information of Acremaster, 403

Transmission variants 1

TransmissionAcremaster
TypeGear
Gears9 forward and 3 reverse

Transmission variants 2

TransmissionTwin Disc 1400
TypePower shift
Gears12 forward and 2 reverse
  • 9-speed gear
  • 12-speed power shift

Mechanical Specs of Acremaster, 403

  • Four-wheel drive
  • Articulated power steering
  • Cab standard with air-conditioning.

Power Information of Acremaster, 403

Engine308 hp [229.7 kW]

Where it sits

With 308 HP, the Acremaster 403 sits between 402 (249 HP) and 404 (390 HP) in Acremaster's range. Its power puts it in the 96th percentile of 1970s models in our database (1259 machines).

Frequently asked questions

How much horsepower does the Acremaster 403 have?

The Acremaster 403 delivers 308 HP.

What years was the Acremaster 403 produced?

The Acremaster 403 was produced in 1978-1984.

What engine does the Acremaster 403 have?

The Acremaster 403 is powered by a Diesel, 10-cylinder engine.

What transmission does the Acremaster 403 use?

The Acremaster 403 uses a Acremaster transmission.

How much does the Acremaster 403 weigh?

The Acremaster 403 weighs 21605 lbs [9800 kg].

Is the Acremaster 403 4WD?

The Acremaster 403 is available in 4WD.

Compare the Acremaster 403 with another model