Engine ModelCat® C18 ACERT™
Bore5.7 in (145 mm)
Stroke7.2 in (183 mm)
Displacement1106 in³ (18.1 l)
The Cat 740 EJ with a 23 m3 (30.1 yd3) 38 tonnes (42 tons) capacity brings a new level of operator comfort and features to the market in addition to the durability, high productivity and lower operating costs Cat Articulated Trucks are known for.
The all-new operator cabin is a leap into the next generation for Articulated Trucks, providing our operators the best place to help build the future.


Engine ModelCat® C18 ACERT™
Bore5.7 in (145 mm)
Stroke7.2 in (183 mm)
Displacement1106 in³ (18.1 l)
Engine Model - U.S. EPA Tier 4 Final, EU Stage IV, Japan 2014, Korea Tier 4 FinalCat C18 ACERT
Gross Power - SAE J1995511 HP (381 kW)
Net Power - ISO 14396504 HP (376 kW)
Net Power - SAE J1349496 HP (370 kW)
Rated Payload42 ton (US) (38 t)
Heaped (SAE 2:1)30.1 yd³ (23 m³)
Struck23.5 yd³ (18 m³)
Forward - 13.8 mile/h (6.1 km/h)
Forward - 25 mile/h (8.1 km/h)
Forward - 37 mile/h (11.2 km/h)
Forward - 48.8 mile/h (14.1 km/h)
Forward - 511.6 mile/h (18.7 km/h)
Forward - 614.2 mile/h (22.9 km/h)
Forward - 719.6 mile/h (31.5 km/h)
Reverse - 14 mile/h (6.4 km/h)
Reverse - 29.1 mile/h (14.6 km/h)
Interior Cab72 dB(A) (72 dB(A))
Center Axle - Empty17095 lb (7754 kg)
Center Axle - Loaded57214 lb (25952 kg)
Center Axle - Rated Load40120 lb (18198 kg)
Front Axle - Empty44849 lb (20343 kg)
Front Axle - Loaded48548 lb (22021 kg)
Front Axle - Rated Load3534 lb (1603 kg)
Rear Axle - Empty16515 lb (7491 kg)
Rear Axle - Loaded56637 lb (25690 kg)
Rear Axle - Rated Load40120 lb (18198 kg)
Total - Empty78623 lb (35663 kg)
Total - Loaded162399 lb (73663 kg)
Total - Rated Load83776 lb (38000 kg)
TypeHigh Strength Brinell HB450 Wear Resistant Steel
Fuel Tank145.3 gal (US) (550 l)
Cooling System23.7 gal (US) (90 l)
Engine Crankcase13.7 gal (US) (52 l)
DEF Tank5.3 gal (US) (25 l)
Steering/Hoist Hydraulic System36.9 gal (US) (140 l)
Transmission - OTG19.8 gal (US) (75 l)
Brake Cooling Tank17.7 gal (US) (67 l)
Lock to Lock4.8 seconds @ 60 rpm
BrakesISO 3450 – 2011
Cab - FOPSISO 3449 Level II – 2005
Cab - ROPSISO 3471 – 2008
SteeringISO 5010 – 2007
NoteDimensions are for machines equipped with 29.5R25 tires.
Turning Dimensions - Aisle Width233 in (5925 mm)
Turning Dimensions - Clearance Radius356 in (9045 mm)
Turning Dimensions - Inside Radius173 in (4413 mm)
Turning Dimensions - SAE Turning Radius339 in (8624 mm)
Turning Dimensions - Steer Angle - Left/Right45 deg
Forward - 823.5 mile/h (37.9 km/h)
Eject (automatic)16 s (16 s)
Eject (manual)17 s (17 s)
Retract (automatic)21 s (21 s)
Retract (manual)21 s (21 s)
Base0.55 in (14 mm)
Chute0.55 in (14 mm)
Front0.28 in (7 mm)
Side0.43 in (11 mm)
EmissionsThe 740 EJ meets Tier 4 Final/Stage IV emission standards.
No Engine De-rating Required Below10000 ft (3050 m)
Note (1)The power ratings apply at rated speed of 1,700 rpm when tested under the conditions for the specified standard.
Note (2)The net power advertised is the power available at the flywheel when the engine is equipped with alternator, air cleaner, muffler and fan at minimum speed.
Note (3)Net power when the fan is at maximum speed is 348 kW (467 hp) per the SAE reference conditions.
Note (4)DEF used in Cat SCR systems must meet the requirements outlined in the International Organization for Standardization (ISO) standard 22241-1. ISO 22241-1 requirements are met by many brands of DEF, including those that carry the AdBlue or API certifications.
Peak Engine Torque Gross (SAE J1995)1931 ft·lbf (2618 N·m)
Peak Engine Torque Net (SAE J1349)1887 ft·lbf (2558 N·m)
Peak Engine Torque Speed1200 r/min (1200 r/min)
Hydraulic Excavator: 374 - Passes5
Hydraulic Excavator: 390 - Passes4
NoteAn optimum system match gives you a major productivity advantage. Having matched loading and hauling tools results in increased production and lower system costs per unit of volume moved.
Wheel Loader: 972 - Passes4-5
Wheel Loader: 980 - Passes4-5
Wheel Loader: 982 - Passes4
Axles - Each15.8 gal (US) (60 l)
Final Drive - Each1.3 gal (US) (5 l)
Note (1)The operator sound exposure Leq (equivalent sound pressure level) measured according to the work cycle procedures specified in ANSI/SAE J1166 OCT98 is 76 dB(A), for the cab offered by Caterpillar, when properly installed and maintained and tested with the doors and windows closed.
Note (2)Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in noisy environments.
Forward - 934 mile/h (54.8 km/h)

Benefits and Features

Offering both automatic and manual options, the system gives operators flexibility to choose their preferred method of control. When using the automatic system to eject a load statically, the machine neutralizes the transmission, applies the service brakes and ejects the blade at the required engine rpm. On-the-go ejection can be controlled by the operator to spread material as required. Automatic use can reduce operator interactions by up to 50 percent depending on the site ejecting procedure.

Waiting brake, transmission hold and machine speed limiter functions are easily accessed using the buttons on the lever. The park brake has also been incorporated giving operation a more automotive feel. No separate switch is now needed; you just push the lever into park.

This provides a greater number of operators with the ability to tailor their seating position for a more comfortable working day. The seat can be selected with variable climate control as an option.

A reduction to in-cab noise (–7 dB from previous model) contributes to a more comfortable working environment for the operator, all day, every day.

Every Tier 4 Final/Stage IV Cat engine with ACERT Technology is equipped with a combination of proven electronic, fuel, air and aftertreatment components. The right technologies fine-tuned for the right applications result in:

  • All new Eco mode, which can provide an average reduction in fuel consumption of 5 percent over normal operation.
  • High machine performance across all applications.
  • Enhanced reliability through commonality and simplicity of design.
  • Maximized uptime and reduced cost with world-class support from the Cat dealer network.
  • Minimized impact of emission systems: designed to operate without requiring interaction.
  • Durable designs with long life to overhaul.
  • Delivering better fuel economy with minimized maintenance costs while providing the same great power and response.

DEF is a precisely mixed solution of 32.5 percent high purity chemical grade urea and 67.5 percent de-ionized water.

The Cat High Density Power Shift (HDPS) nine-speed forward two-speed reverse transmission, designed specifically for Articulated Trucks, features Advanced Productivity Electronic Control Strategy (APECS) and Electronic Clutch Pressure Control (ECPC) that deliver smooth gear changes with improved acceleration and higher productivity.

Speed hold/limiting function allows the machine speed to be limited in 1 km/h or 1 mph steps to conform to site speed restrictions.

Gearshifts are configured to maintain direct drive lock-up, and reduce dropping into converter drive. Decreasing the use of torque converter drive aids in maintaining ground speed and gradeability.

Variable gearshift points are used based on the operating conditions, which also aid in maintaining ground speed during gear changes on grades.

Clutches are automatically disengaged when ground conditions allow, maximizing efficiency when steering or when on uneven ground.

AATC reduces tire and driveline abuse, eliminating lost machine efficiencies caused by improper manual operation of the differential clutches, and reducing the cost of premature tire replacement.

The 740 EJ shares the versatility of the 745, operating in the same conditions, but offering unique capabilities that stretch the operation envelope.

The introduction of the new combined eject/transmission lever gives you the option to auto eject, as well as full manual control.

Cat Connect makes smart use of technology and services to improve your job site efficiency. Using the data from technology-equipped machines, you'll get more information and insight into your equipment and operations than ever before.

Cat Connect technologies offer improvements in these key areas:

Equipment Management – increase uptime and reduce operating costs.

Productivity – monitor production and manage job site efficiency.

Safety – enhance job site awareness to keep your people and equipment safe.

All Cat Articulated Trucks are designed to maximize efficiency and productivity while conserving natural resources.