854F-E34TA Industrial Open Power Unit

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Our 854F-E34TA Industrial Open Power Unit (IOPU) delivers exceptional power density and torque, while meeting the toughest EU Stage IV/U.S. EPA Tier 4 Final emission standards. The engine, built on the trusted and proven core of the 850 Series, is ideal for a range of off-highway applications and can be integrated into your machine with ease. We've worked with OEMs to optimise the engine's fuel consumption and keep your ownership costs low.


3.4 litre

75-86 kW (101-115 hp)

Designed to meet EU Stage IV/U.S. EPA Tier 4 Final emission standards

The 854F-E34TA IOPU is a turbocharged, air-to-air chargecooled 3.4 litre 4 cylinder unit capable of producing 86 kW (115 hp). It has high power density and excellent torque all in a compact design, allowing for easy integration into applications that are tight on spaces.

Power Rating

Minimum Power 101.0 HP 75.0 kW Less
Maximum Power 115.0 HP 86.0 kW Less
Rated Speed 2200-2500 rpm 2200-2500 rpm Less
Maximum Torque 350.0 lb-ft @ 2500 rpm 475.0 Nm @ 2500 rpm Less

Emission Standards

Emissions EU Stage IV/U.S. EPA Tier 4 Final EU Stage IV/U.S. EPA Tier 4 Final Less


Bore 3.9 in 99.0 mm Less
Stroke 4.3 in 110.0 mm Less
Displacement 207.5 in³ 3.4 l Less
Aspiration Turbocharged aftercooled Turbocharged aftercooled Less
Rotation from Flywheel End Anti-clockwise Anti-clockwise Less
Cooling System Liquid Liquid Less
Combustion System Direct injection Direct injection Less
Number of Cylinders 4 inline 4 inline Less
Compression Ratio 17:1 17:1 Less
Cycle 4 stroke 4 stroke Less

Aftertreatment Dimensions* - SCR

Diameter 9.8 in 251.0 mm Less
Length 22.3 in 568.0 mm Less
Weight 44.0 lb 20.0 kg Less


Note 1 *Final dimensions dependent on selected options *Final dimensions dependent on selected options Less

Engine Dimensions*

Dry Weight 897.0 lb 407.0 kg Less
Width 27.3 in 694.0 mm Less
Length 46.0 in 1166.0 mm Less
Height 37.6 in 957.0 mm Less

Aftertreatment Dimensions* - DOC

Diameter 11.6 in 296.0 mm Less
Weight 22.0 lb 10.0 kg Less
Length 13.5 in 342.8 mm Less

A lifetime of low cost

Excellent fuel consumption, 500 hour oil change intervals, long-lasting quality components and cost-saving aftertreatment options all add up to an engine that will deliver the durable power you need at a low cost.

Fuel economy

Our 854F-E34TA IOPU engine is designed to provide excellent fuel economy and we've worked closely with OEMs to optimise fuel consumption in the engine, matching the operating cycles of a wide range of equipment and applications.

Reliable power in a compact package

The 854F-E34TA IOPU provides an impressive 75-86 kW (101-115 hp) and 475 Nm of torque. Our world-class manufacturing processes coupled with a proven core engine design ensure reliability, quiet operation and many hours of productive life. The engine's compact design makes it suitable for a range of off-highway applications.

854F-E34TA Industrial Open Power Unit Standard Equipment

Aftertreatment technology
  • DOC - Diesel Oxidation Catalyst
  • SCR - Selective Catalytic Reduction

Air inlet system
  • Standard air cleaners

Control system
  • All connectors and wiring looms waterproof and designed to withstand harsh off-highway environments
  • Flexible and configurable software features and J1939 standard communications I/O
  • Full electronic control system
  • Fully integrated, engine-mounted engine control module

Flywheels and flywheel housing
  • SAE3 configuration

Fuel system
  • Electronic high pressure common rail
  • Engine-mounted fuel filters

Power take-off
  • SAE A flange on left-hand side

Standard emissions control equipment
  • NRS – NOx Reduction System