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CAT Articulated Trucks 740B

The new Cat® 740B with 39.5 tonnes (43.5 tons) rated payload offers proven reliability and durability, high productivity, superior operator comfort and lower operating costs.

The spacious two-person cab with forward facing passenger seat and off road oil/nitrogen front suspension cylinders keep the operator comfortable through out the working day.

The true “on-the-go” Automatic Traction Control (ATC) automatically modulates the correct level of Inter-Axle and Cross-Axle differential lock engagement which will improve cycle times and productivity. No operator interaction.

Strong, durable Cat ACERT™ engines with the Tier 4 Interim/EU Stage lllB exhaust emission solution and electronically controlled smooth shifting transmissions deliver high productivity with low fuel consumption. There are significant changes/improvements to the engine/transmission software that result in smoother gear changes.

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The new Cat® 740B with 39.5 tonnes (43.5 tons) rated payload offers proven reliability and durability, high productivity, superior operator comfort and lower operating costs.

The spacious two-person cab with forward facing passenger seat and off road oil/nitrogen front suspension cylinders keep the operator comfortable through out the working day.

The true “on-the-go” Automatic Traction Control (ATC) automatically modulates the correct level of Inter-Axle and Cross-Axle differential lock engagement which will improve cycle times and productivity. No operator interaction.

Strong, durable Cat ACERT™ engines with the Tier 4 Interim/EU Stage lllB exhaust emission solution and electronically controlled smooth shifting transmissions deliver high productivity with low fuel consumption. There are significant changes/improvements to the engine/transmission software that result in smoother gear changes.


Rated Payload
39.5 tonne

Service Refill Capacities

Final Drive
72 L
72 L
Hydraulic System
328 L
Engine Crankcase*
38 L
Output Transfer Gear Box
Cooling System
80 L
Fuel Tank
560 L


Gross Power – SAE J1995
365 kW
Net Power – SAE J1349
354 kW
Net Power – ISO 14396
361 kW
137 mm
171.5 mm
15.2 L
Engine Model


Forward 3
16.4 km/h
Forward 4
22 km/h
Reverse 1
8.4 km/h
Forward 5
30 km/h
Forward 6
40 km/h
Forward 7
54.7 km/h
Reverse 2
11.6 km/h
Forward 1
8.9 km/h
Forward 2
12.1 km/h


ISO 5010 – 2007
ISO 3450 – 1996
ISO 3449 Level II – 2005
ISO 3471 – 2008

Body Plate Thickness

8 mm
16 mm
12 mm
16 mm

Body Capacities

Heaped SAE 2:1
24 m3
Tailgate Heaped SAE 2:1
25.5 m3
Tailgate Struck
19.5 m3
18.5 m3

Operating Weights

Front Axle – Empty
20 664 kg
Center Axle – Empty
7229 kg
Rear Axle – Empty
6499 kg
Total – Empty
34 393 kg
Front Axle – Rated Load
5211 kg
Center Axle – Rated Load
17 186 kg
Rear Axle – Rated Load
17 186 kg
Total – Rated Load
39 582 kg
Front Axle – Loaded
25 875 kg
Center Axle – Loaded
24 415 kg
Rear Axle – Loaded
23 685 kg
Total – Loaded
73 975 kg

Body Hoist

12 Secon
7 Secon

Engine with ACERT™ Technology

ACERT Technology

The Cat® C15 ACERT engine continues the evolutionary, incremental improvements that provide breakthrough engine technology built on systems and components developed by Caterpillar with proven reliability.

Cat Clean Emissions Module (CEM)

CEM is an exhaust aftertreatment package consisting of a diesel particulate filter, and control systems. The CEM reduces particulate emissions using passive and active regeneration during normal engine operation.

Cat NOx Reduction System (NRS)

The Cat NOx Reduction System (NRS) captures and cools a small quantity of exhaust gas, then routes it into the combustion chamber where it drives down combustion temperatures and reduces NOx emissions.

Fuel Delivery

Mechanically actuated Electronic Unit Injection (MEUI-C) multiple injection fuel delivery involves a high degree of precision. Precisely shaping the combustion cycle lowers combustion chamber temperatures, generating fewer emissions and optimizing fuel combustion. This translates into more work output for your fuel cost.

Diesel Particulate Filter Regeneration


Regeneration is the removal of soot from the Diesel Particulate Filter (DPF). The Aftertreatment Regeneration Device (ARD) is used to regenerate the DPF.

The DPF traps both particulates and ash, the ash is removed at regular service intervals.

Modes of Regeneration

When set to automatic, regeneration will occur without any interaction from the operator. The three modes of regeneration shown below allow the articulated truck to adapt to specifi c site conditions in the most effi cient manner.

Automatic: “On-the-go” regeneration is initiated when the engine control module determines conditions are acceptable. The articulated truck is not required to stop working.

Automatic: Low Idle regeneration is initiated when the machine is in a reduced operating mode for a predetermined period of time, and a number of conditions are met. The system is designed so that the operator can interrupt regeneration at any time.

Manual: A manual regeneration is initiated by pressing the regeneration switch for 5 seconds. The machine must be brought to a non-operating mode in order to perform a manual regeneration.


Electronic Transmission

The Cat seven-speed forward two-speed reverse Electronic Clutch Pressure Controlled (ECPC) transmission features enhanced shift control logic with anti-hunt shift strategy for speed continuity, and to ensure constant shift times.

Min-max Governor Control

ECPC control is matched to the min-max governor control for precise smooth shifting.

Two Reverse Gears

The transmission arrangement provides a second reverse gear for improved performance when operating in longer rear hauling applications.

Smooth Transmission Gear Shifting

The 740B features ECPC Shift Torque Management (STM), with improved Shift Control Logic (SCL) and Part Throttle Shifting (PTS). These features allow smoother shifting and greater acceleration on grades while torque is maintained through the shift changes. SCL also provides automatic shift selection that is more specific to the desired machine operation, and downshifts when needed for maximum acceleration when increased throttle is applied. PTS allows shifting at lower speeds during part throttle operation, resulting in improved part throttle fuel economy, quieter machine operation, and better maneuvering in reduced speed operating conditions.

Suspension and Automatic Traction Control (ATC)

Front Suspension

The three-point front suspension oscillates ±6° to provide a smooth ride, allowing the operator to travel at speed over rough terrain and softening impact loads on structures and components. Large bore, low pressure cylinders are purpose designed for tough applications and offer a soft, smooth ride.

Rear Suspension

Features a walking beam geometry with Caterpillar designed rear suspension mounts which provide a reliable and stable ride for excellent load retention.

Automatic Traction Control

Fully Automatic Traction Control (ATC). Inter-Axle-Differential lock (IAD) and Cross-Axle-Differential locks (XAD) feature oil immersed clutches that require no operator input. Operation is seamless and smooth,and it eliminates wheel slip for maximum traction.

Sensors monitor the machine and wheel speeds, enabling instant response in low traction conditions.

Fully automatic, independent, IAD and XAD clutches are engaged on-the-go to optimize machine performance and control in all conditions. Clutches are automatically disengaged when ground conditions dictate, maximizing efficiency when steering or on uneven ground.

ATC eliminates wheel spin in soft under foot extreme ground conditions where little traction is available. It also reduces tire and driveline abuse eliminating lost effi ciency caused by improper manual operation of the differential clutches.

Retardation Control

The Cat engine compression brake control lever is positioned on the right-hand side of the steer column.

Four modes of operation with three steps of retardation, provide an optimum match between operating conditions and retarding power.

Operator Comfort

Ride Comfort

The three-point front suspension with its oscillating axle and low-pressure ride struts, combined with the center-mounted cab, offers unrivaled levels of ride comfort for the operator in all driving conditions. The operator remains comfortable and productive throughout the day.

Spacious Two-Person Cab

The 740B features a large two-person cab, offering comfortable working space for both the operator and passenger. The 735B, 740B and 740B EJ articulated trucks use the same spacious cab design.

Air Suspension Seat

The air suspension seat enhances operator comfort with a cushioned upper high back, adjustable damping with three settings, ride zone indicator and adjustable lumbar settings. It is fully adjustable to provide the optimal driving position.

Passenger Seat

Full-size passenger seat features a fully padded seat with a backrest and a wide, retractable seatbelt for a secure and comfortable ride. The passenger seat is positioned next to the operator seat, giving both the operator and passenger a clear view of the instrument panel, controls and the road.

Steering Column

A comfortable driving position is provided by a telescopic and tilt adjustable steering column.

Ease of Operation

Ergonomic Layout

The controls and layout of the cab are designed to make it as easy to operate as your car. Quick, easy to read and simple to operate, the controls and gauges on the 740B allow the operator to concentrate on production.


The integrated wrap-around dash puts all controls within easy reach of the operator. Featuring LED illuminated rocker switches for the dash dimmer, rear wash wiper, hazard warning, head lamp, work lamp, heated mirrors (optional), diff-lock, secondary steer, heated seat (optional), machine security system (optional), A/C and cigar lighter. Color Multi- Purpose Display (CMPD) unit incorporating the messenger and rearview display. Provides an automotive feel with the industrial strength you would expect from Caterpillar.

Color Multi Purpose Display (CMPD)

A multi screen display unit showing various levels of machine warning categories, performance and condition pages, including: Performance, Settings, Totals, Service, Machine Status, Operator, and Rearview Camera.

Warning Categories

The monitoring system provides four warning categories.

The first warning category requires only operator awareness.

The second warning category requires a change in machine operation or maintenance to the system.

The third warning category requires an immediate change of the machine operation.

The fourth category requires the operator to immediately stop the machine. The fourth category also requires the operator to immediately shut down the engine.

Viewing Area

The low sloping hood and placement of the cooling package behind the cab give the operator excellent all-around visibility. The large glass area and central operator position also provide excellent visibility.

Transmission and Hoist Levers

The hoist lever provides easy, comfortable operation. The transmission lever offers excellent comfort, and control for top gear limit, transmission hold and neutral lock.

Durability and Reliability

Front Frame

The front frame design features a large box section and wide, stiff frame beams to handle torque loads. The divergent frame design decreases stress in the hitch area and optimizes suspension geometry. The frame design makes maximum use of robotic welding for increased durability.

Rear Frame

Twin-box construction minimizes stress concentrations and provides low weight with long service life.


The three-point oscillating axle front suspension provides unparalleled ride quality. It also protects the truck from adverse road conditions by absorbing shock loads that would reach the frame.

Articulating/Oscillating Hitch

The articulating hitch provides the truck with steering articulation, and the oscillation ensures all-wheel ground contact in rough terrain.

Hitch Construction

Two-piece construction features a durable cast steel head bolted to a hard-wearing forged steel tube.

Fast Hoist Cycle Times

Fast body raise and lower times mean less time spent in the dump area.

Load-Carrying Capacity

The 740B has a large target area to provide consistently high load-carrying capacity. Its diverging flow design gives clean load ejection, which maximizes production and avoids the waste of material carry-back.

Output Transfer Gear

Provides lubrication of all bearings and clutches using a distributed-pressure lubricated and fi ltered system.

Enclosed, Oil-Cooled Brakes

High performance multi-plate, oil-immersed brakes are only required on front and center axles. These brakes provide outstanding stopping capability, while maintaining maximum durability and low wear characteristics.

Parking Brake

Fitted to the center axle in an elevated position, spring applied and hydraulically released.

Product Link

Cat Product Link*

Cat Product Link allows remote monitoring of the Articulated Truck to improve overall fl eet-management effectiveness. Product Link is deeply integrated into machine systems. Events and diagnostic codes, as well as hours, fuel, idle time and other detailed information are transmitted to a secure web based application, VisionLink™. VisionLink includes powerful tools to convey information to users and dealers, including mapping, working/idle time, fuel level and more.

* Product Link licensing not available in all areas. Please consult your Cat dealer for availability.

Key Points

    See your entire fleet at a glance
  • Monitor fuel usage
  • Set up site boundaries and security alerts
  • Click through to your Cat dealer for service and parts
  • Customize the alerts and displays that matter to you
  • Compare working time versus idle time
  • Reduce owning and operating costs
  • Get the right information to the right people at the right time
  • Vital Information Maintenance System (VIMS™) upgrades available

New Features

  • Completely updated
  • Robust new hardware
  • Remarkably intuitive web-based interface
  • Satellite and cellular coverage
  • Open-system design for mixed-fl eet use


Long Service Intervals

Long engine oil change and hydraulic oil change intervals reduce maintenance costs and downtime. Wheel-bearing adjustment is completely eliminated.

Lubrication Points

Lubrication points are grouped at the rear of the front frame and the front of the rear frame. Universal joints are lubricated for life, eliminating servicing. Autolube is optional.

Service Points

Engine and transmission dipstick and fill caps, air and fuel filters, and the fuel priming pump are all mounted on the left side of the engine under the electrically raised hood. Coolant level indicator and fill cap are outside the cab.


The radiator package is located behind the cab, which provides protection from frontal impacts and offers easy access to the inlet and outlet sides of the radiator. The Air To Air After Cooler (ATAAC) radiator is located at the front of the truck.

Extended Life Coolant

Extends the change interval and improves component life by reducing aluminum corrosion.

Electrical Service Center

Located inside the cab, this service center provides a power port, diagnostic connector and Cat Data Link connector.

Cat Data Link Connector

The Cat Data Link connector provides a plug-in using a laptop computer with Electronic Technician (ET) software.

Service Access

The cab tilts to the side to provide easy access underneath, which simplifies access to the transmission, drive shafts and hydraulic pumps. Machine electrical and hydraulic interfaces are located on the right side of the cab, behind a removable cab body panel for easy access.

Truck Transport

The suspension system eliminates the need to lower the suspension when transporting the truck, reducing maintenance and downtime.

Complete Customer Support


Make comparisons of the machines you are considering before you buy. Your Cat® dealer can help.


Consider the resale value, compare productivity and day-to-day operating costs and fuel consumption.


For the best operating techniques to increase productivity and your profit, turn to your Cat dealer for the latest training literature and trained staff.


Repair option programs guarantee the cost of repairs up front. Diagnostic programs such as S·O·SSM and Technical Analysis help you avoid unscheduled repairs.


Repair or rebuild? Your Cat dealer can help you evaluate the costs so you can make the right choice.

Product Support

Your local Cat dealership will be with you every step of the way with its unsurpassed worldwide parts support, trained technicians and customer support agreements.

For more complete information on Cat products, dealer services and industry solutions, visit us on the Web at


Product Safety

Caterpillar has been and continues to be proactive in developing machines that meet or exceed safety standards. Safety is an integral part of all machines and system designs.

Safety Features

  • Cab integral ROPS (Roll Over Protection System) and FOPS (Falling Object Protection System)
  • Rearview camera system provides a continuous panoramic rear view or when reverse gear is selected
  • The secondary and parking brake functions are spring applied and hydraulically released
  • Electro-hydraulic secondary steering system, automatically activates in forward/reverse or when stationary if low pressure is sensed. Can be manually selected for machine recovery purposes.
  • External engine fuel cut off switch for easy access from outside of the machine
  • External electrical system disconnect switch for easy access from outside of the machine
  • Slip resistant surfaces – punched steel plate
  • Hood raise and lower switch fitted at the LHS of dash
  • 75 mm (3 in) wide retractable seat belts for operator and passenger/trainee
  • Cab roof mounted work lights
  • Wide angled mirrors for excellent rear visibility
  • Sweeping hood design for panoramic forward visibility
  • Extensive hand rails
  • Body raised alarm
  • Heated motorized mirrors (optional)
  • LED fl ashing beacon


The 740B is designed to maximize efficiency and productivity while conserving natural resources.

Air Quality

The C15 ACERT engine incorporating the Cat Clean Emission Module (CEM) meets EPA Tier 4 Interim/Stage IIIB emissions requirements and is designed to incorporate Tier 4 Final/EU Stage IV emissions systems at future machine product introduction.

The C15 ACERT engine has the flexibility of running on either ultra-low-sulphur diesel (ULSD) fuel or bio-diesel blended with ULSD. All fuels must have no more than 15 ppm sulfur.

Re-cycle Waste

The Caterpillar Design, Manufacturing, Assembly and Test Site at Peterlee in England re-cycle 90% of all waste produced.

The 740B is manufactured to be rebuilt and remanufactured to reduce waste and replacement costs.

The 740B is an efficient, productive machine that is designed to conserve our natural resources for generations ahead.

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