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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 IIIB 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.


Engine Model Cat® C15 ACERT™ Cat® C15 ACERT™ Less
Gross Power - SAE J1995 489.0 hp 365.0 kW Less
Net Power - SAE J1349 474.0 hp 354.0 kW Less
Bore 5.4 in 137.0 mm Less
Stroke 6.75 in 171.5 mm Less
Displacement 926.0 in3 15.2 L Less
Engine Model Tier 4 Interim/EU Stage IIIB Cat® C15 ACERT™ Cat® C15 ACERT™ Less
Net Power - ISO 14396 484.0 hp 361.0 kW Less


Rated Payload 43.5 tons 39.5 tonnes Less

Body Capacities

Heaped SAE 2:1 31.4 yd3 24.0 m3 Less
Struck 24.2 yd3 18.5 m3 Less
Tailgate Heaped SAE 2:1 33.5 yd3 25.5 m3 Less
Tailgate Struck 25.5 yd3 19.5 m3 Less


Forward 1 5.5 mph 8.9 km/h Less
Forward 2 7.5 mph 12.1 km/h Less
Forward 3 10.2 mph 16.4 km/h Less
Forward 4 13.7 mph 22.0 km/h Less
Forward 5 18.6 mph 30.0 km/h Less
Forward 6 25.1 mph 40.0 km/h Less
Forward 7 34.0 mph 54.7 km/h Less
Reverse 1 5.2 mph 8.4 km/h Less
Reverse 2 7.2 mph 11.6 km/h Less

Sound Levels

Interior Cab 79.0 dB(A) 79.0 dB(A) Less

Operating Weights

Front Axle - Empty 45737.0 lb 20746.0 kg Less
Center Axle - Empty 15864.0 lb 7196.0 kg Less
Rear Axle - Empty 14255.0 lb 6466.0 kg Less
Total - Empty 75857.0 lb 34408.0 kg Less
Front Axle - Rated Load 11488.0 lb 5211.0 kg Less
Center Axle - Rated Load 37889.0 lb 17186.0 kg Less
Rear Axle - Rated Load 37889.0 lb 17186.0 kg Less
Total - Rated Load 87263.0 lb 39582.0 kg Less
Front Axle - Loaded 57223.0 lb 25956.0 kg Less
Center Axle - Loaded 53753.0 lb 24382.0 kg Less
Rear Axle - Loaded 52144.0 lb 23652.0 kg Less
Total - Loaded 163120.0 lb 73990.0 kg Less

Body Plate Thickness

Front 0.31 in 8.0 mm Less
Scow 0.63 in 16.0 mm Less
Side 0.47 in 12.0 mm Less
Base 0.63 in 16.0 mm Less

Service Refill Capacities

Fuel Tank 149.3 gal 565.0 L Less
Cooling System 21.1 gal 80.0 L Less
Hydraulic System 85.0 gal 322.0 L Less
Engine Crankcase 9.0 gal 34.0 L Less
Transmission 19.0 gal 72.0 L Less
Final Drives/Differential 60.8 gal 230.0 L Less
Output Transfer Gear Box 4.8 gal 18.0 L Less

Body Hoist

Raise Time 12.0 Seconds 12.0 Seconds Less
Lower Time 7.0 Seconds 7.0 Seconds Less


Lock to Lock 4.6 seconds @ 60 rpm 4.6 seconds @ 60 rpm Less


Brakes ISO 3450 - 1996 ISO 3450 - 1996 Less
Cab/FOPS ISO 3449 Level II - 2005 ISO 3449 Level II - 2005 Less
Cab/ROPS ISO 3471 - 2008 ISO 3471 - 2008 Less
Steering ISO 5010 - 2007 ISO 5010 - 2007 Less

Turning Circle

Note Dimensions are for machines equipped with 29.5R25 tires. Dimensions are for machines equipped with 29.5R25 tires. Less
Turning Dimensions - Aisle width 224.2 in 5694.0 mm Less
Turning Dimensions - Clearance radius 338.4 in 8595.0 mm Less
Turning Dimensions - Inside radius 161.5 in 4101.0 mm Less
Turning Dimensions - SAE turning radius 320.4 in 8138.0 mm Less
Turning Dimensions - Steer angle - left/right 45.0 Degrees 45.0 Degrees Less

Engine with ACERT™ Technology

Innovative technologies optimize performance.


Proven Reliability.

Suspension and Automatic Traction Control (ATC)

Performance and Productivity.

Operator Comfort

High productivity from a comfortable, confident operator.

Ease of Operation

Designed for ease of use - allows the operator to focus on production.

Durability and Reliability

High machine availability maximizes productivity and lowers costs.

Product Link

A secure and user-friendly application.


More time on production.

Complete Customer Support

Cat® dealer services help you operate longer with lower costs.


Designed with safety as the first priority.


Resourceful in every way.

740B Standard Equipment

Air conditioning with R134A refrigerant

Air vents, adjustable

Automatic Traction Control (ATC)

Auto shift seven-speed forward and two-speed reverse transmission

Back up alarm

Body, adapted for exhaust heat

Cat® C15 engine with ACERT™ Technology

Cat Clean Emission Module (CEM) an exhaust aftertreatment package

Color Multi-Purpose Display (CMPD) incorporating the Cycle Counter and rearview Camera Screen

CD/Radio, heavy duty ready

Differentials, standard with automatic clutched cross-axle and inter-axle differential locks for all axles

Electrical system: 24 volt, 5A 24- to 12-volt converter

Electro hydraulic hoist control

Ether starting aid

Glass windows, laminated and tinted, front

Glass windows, toughened and tinted, sides and rear

Guards: rear window, radiator, crankcase and axle

Headlights, four

Heater and defroster with four-speed fan

Horn, electric

Lights: cab interior, front, side, rear, two reversing/working lights, two stop/tail lights, side width marker, front and rear direction indicators

Mirrors, main and auxiliary, left and right

Mud flaps, wheel arch and body mounted, with transportation tie backs

Oil-cooled brakes, enclosed

Operator and passenger grab hand rails

Product Link where applicable

Retarder, Engine compression brake

ROPS/FOPS cab, with full instrumentation, including:
  • Instrument cluster display module
  • Indicator lamps: left turn, secondary steering, primary steering loss, front and center axle brake temp (735B/740B and 740B Ejector only), brake oil pressure, action lamp, transmission fault, park brake, charging system status, differential lock fault, body not in float, right turn, high beam, transmission hold, machine filter warning, retarder, retarder up shift warning
  • Gauges: engine oil pressure, engine coolant temperature, torque converter oil temperature, fuel level, fuel tank level gauge
  • LCD warnings/indicators: Gear, Alert, Speed, Soot, DPF Regeneration, Engine hours, Primary Steer, 2nd Steer, Machine Security (MSS), Retarder
  • Meters: service hour meter, speedometer, tachometer

Seat, fully adjustable, air suspension

Seat, padded passenger

Secondary steering - electronic

S∙O∙SSM sampling valves

Spill guard, front, integral part of fabricated body

Starting receptacle, electric, remote

Storage - two cup holders, flask receptacle, under seat storage, door pocket, behind seat storage, coat hook

Sun visor

Three-axle, six wheel drive

Tilt and telescopic steering wheel

Tires, 29.5R25, radial

Towing eyes, front and rear tow pin

Two seat belts, retractable

Vandalism protection: lockable caps for fuel tank and hydraulic oil tank

Windows opening side, tinted

Windshield wiper and washer, two speed, intermittent (front)

Windshield wiper and washer, two speed, (rear)

740B Optional Equipment

Autolube installation for automatic greasing of bearings

Body liners

CD/Radio, heavy duty with auxiliary input

Cold Weather Coolant (-51° C/-59.8° F)

Cold weather start attachment

Engine Block Heater

Exhaust heated body

Fast fuel fill

Flashing LED Beacon

Fuel Additive - Anti-Waxing

Heated rearview motorized mirrors

Heated seats

Product Link PL 321, PL 522 and PL 523 (where available)

Roof mounted work lights

Long wheel base rear chassis (OEM)

Machine Security System (MSS)

  • Scissor-type