360°Exterior View
360°Interior View
360°Exterior View
360°Interior View

730C EJ Articulated Truck

  • Overview
  • Finance With CavPower
  • Optional Services
  • View product Download


Optimized Performance, Proven Reliability


Class Leading Transmission Technology

Automatic Traction Control (ATC)

The Most Advanced Traction Control System

Suspension and Brakes

Performance and Comfort

Operator Comfort

Improved Productivity from a Confident Operator

Ease of Operation

Designed around the Operator

Ejector Body

Disperse Loads on-the-go for Faster Cycles and Lower Spreading Costs


Proven Durability and Reliability

Product Link

User Friendly Secure Application


Maximum Uptime and Reduced Costs

Customer Support

Complete Peace of Mind


Safety at the Forefront of Design


Making Sustainable Progress Possible

Engine Technology

The Cat C13 ACERT engine continues the evolutionary, incremental improvements that provide breakthrough engine technology built on systems and components developed by Caterpillar with proven reliability.

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.

Engine Compression Brake

The Cat C13 ACERT engine compression brake improves retarding response and increases retarding power.

Retarder Power

Increased power capability gives operators greater control on short, steep grades and minimizes the need to apply the service brakes, resulting in extended service brake life. It retains four modes of operation, with three stages of retardation, so operators can match the level of retarding to the grade resistance.

Electronic Transmission

The Cat CX31 six-speed forward one-speed reverse Electronic Clutch Pressure Controlled (ECPC) transmission featuring Advanced Productivity Electronic Control Strategy (APECS) delivers smooth shifting with strong acceleration and high productivity. The Cat C13 ACERT engine coupled with the CX31 transmission deliver increased forward and reverses rimpull. Featuring:

  • A speed hold/limiting function allows the machine speed to be limited in one km/h or one mph steps to conform to site speed restrictions.
  • Critical gearshifts maintain direct drive lock-up, and eliminate dropping into converter drive. This maintains ground speed during shifts on grades.
  • The transmission automatically modifies shift points to best suit operating conditions.
  • Retarding levels are automatically reduced on lesser grades in lower gears.

Torque Converter

A large diameter torque converter, configured for off highway applications, allows the engine power to be transmitted more efficiently to the lower power train.

Automatic Traction Control (ATC)

Fully Automatic Traction Control (ATC), with 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, eliminating 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. Clutches are engaged proportionally, from 0% to 100%, as ground conditions dictate. ATC eliminates wheel spin in soft underfoot ground conditions or on slippery grades. It also reduces tire and driveline abuse caused by improper manual operation of the differential clutches. The ATC allows ‘true’ 6×6 drive with proportionally open differentials for best power efficiency.

Front Suspension

The three-point front suspension oscillates ±6° to provide a smooth ride, allowing the operator to travel at speed over rough terrain. It softens impact loads on structures and components using an oscillating A-frame with a lateral tie rod to control axle sideways movement. Large bore, low-pressure cylinders are purpose designed for tough applications and offer a soft, smooth ride.

Rear Suspension

The rear suspension features walking beam geometry with Caterpillar designed, long life, rear suspension mounts, which provide a reliable and stable ride for excellent load retention.

Mounting Points

Suspension mounting points are integrated into the axle housing, increasing reliability.

Service Brakes

Dual-circuit, all wheel braking system. Full power hydraulic system actuates self-cleaning caliper disc brakes with independent front and rear circuits and accumulators.

Parking Brake

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

Ride Comfort

The three-point front suspension with its oscillating axle and low-pressure ride struts, combined with the center-mounted cab, offer 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 730C EJ features a large two-person cab, offering comfortable working space for both the operator and passenger with large storage compartments. The 725C, 730C, 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 seat belt 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.

Ergonomic Layout

The controls and layout of the cab are designed to make operation as easy as your car. Quick, easy to read and simple to operate, the controls and gauges on the 730C EJ 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), secondary steer, heated seat (optional), machine security system (optional), A/C and cigar lighter. The Color Multi-Purpose Display (CMPD) unit incorporates the messenger and rear camera display. The cab provides an automotive feel with the industrial strength you would expect from Caterpillar.

Color Multi-Purpose Display (CMPD)

The cab features 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 transmission lever offers excellent comfort and control for transmission selection, hold and neutral lock. The hoist lever provides easy, comfortable operation.


The ejector body offers clean load ejection and the capability to work in areas with restricted overhead clearance and soft underfoot conditions.


The 730C EJ shares the versatility of the Standard 730C Articulated Truck, operating in the same conditions but offering unique capabilities that stretch the operation envelope.


The truck can eject and spread the material while moving, reducing additional spreading and dozing equipment. On‑the-go ejecting results in faster cycle times and reduced power train loads.


Ejecting the load without raising the body increases stability, allowing load dispersal on inclines, side slopes and in very soft underfoot conditions especially on landfill sites.

Overhead Clearance

The truck can eject in areas with reduced overhead clearance, such as around overhead lines or in tunneling and underground operations.


The body design eliminates material sticking to the body, which increases productivity, improves fuel efficiency and lowers cost per ton.


The ejector blade is made from high-strength steel and uses technology similar to that proven in Cat wheel tractor-scrapers.


A three-stage, high-speed, double-acting cylinder is specifically designed for horizontal mounting and smooth load ejection.

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

The four plate box constructed rear frame minimizes stress concentrations and provides low weight with long service life.


Reinforced body is made from thick high-yield, heat-treated Brinell hardened steel (Brinell 450 on the base and Brinell 400 on the sides) that provides exceptional durability. Ejector top rails are made from high-strength alloy steel. For optimum durability and wear life, the ejector body is designed to work in applications where the material consists of rocks smaller than 152 mm (6 in) in diameter.


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

The two-piece construction of the hitch features a durable cast steel head bolted to a hard wearing forged steel tube.

Cat Product Link*

Cat Product Link allows remote monitoring of the Articulated Truck to improve overall fleet-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
  • Robust new hardware
  • Remarkably intuitive web-based interface
  • Satellite and cellular coverage
  • Open-system design for mixed-fleet use

Long Service Intervals

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

Lube Points

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

Service Points

Mounted on the left side of the engine under the electrically raised hood:

  • Engine dipstick and fill cap
  • Transmission dipstick and fill cap
  • Air, fuel water separator and fuel filters
  • Electrically operated fuel-priming pump
  • Coolant level indicator and fill cap are outside the cab.

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 of 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.


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, contact 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 www.cat.com.

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 rearview or when reverse gear is selected
  • The secondary and parking brake functions are spring applied and hydraulic 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
  • 75 mm (3 in) wide seat belts for operator/trainer and passenger
  • Wide angled mirrors for excellent rear visibility
  • Sweeping hood design for panoramic forward visibility
  • Extensive handrails
  • Body raised alarm
  • Heated mirrors (optional)
  • LED-flashing beacon (optional)
  • LED width position marker lights for easier night time working
  • Operator selectable machine speed limiting function

The 730C EJ is designed to maximize efficiency and productivity while conserving natural resources.

Air Quality

The Cat C13 ACERT meets U.S. EPA Tier 2 Final/EU Stage II emission requirements.

Recycle Waste

The Caterpillar Design, Manufacturing, Assembly and Test Site at Peterlee in England recycle 98% of all waste produced with zero waste to landfill. The 730C EJ is manufactured to be rebuilt and remanufactured to reduce waste and replacement costs. The 730C EJ is an efficient, productive machine that is designed to conserve our natural resources for generations ahead.

Engine Model Cat C13 ACERT
Gross Power - SAE J1995 280.0 kW (375.0 hp)
Net Power - SAE J1349 274.0 kW (367.0 hp)
Bore 130.0 mm (5.12 in)
Stroke 157.0 mm (6.18 in)
Displacement 12.5 L (763.0 in3)
Engine Model - U.S. EPA Tier 2/EU Stage ll Cat® C13 ACERT™
Net Power - ISO 14396 276.0 kW (370.0 hp)
No Engine De-rating Required Below 3990.0 m (13100.0 ft)
Peak Engine Torque Gross (SAE J1995) 1830.0 N·m (1350.0 lb ft)
Peak Engine Torque Net (ISO 14396) 1810.0 N·m (1335.0 lb ft)
Peak Engine Torque Speed 1200.0 RPM (1200.0 RPM)
Rated Payload 28.0 tonnes (31.0 tons)
Body Capacities
Heaped SAE 2:1 16.9 m3 (22.1 yd3)
Struck 13.5 m3 (17.7 yd3)
Forward 1 8.0 km/h (5.0 mph)
Forward 2 15.0 km/h (9.0 mph)
Forward 3 22.0 km/h (14.0 mph)
Forward 4 34.0 km/h (21.0 mph)
Forward 5 47.0 km/h (29.0 mph)
Forward 6 55.0 km/h (34.0 mph)
Reverse 1 9.0 km/h (6.0 mph)
Operating Weights
Front Axle - Empty 15250.0 kg (33620.0 lb)
Center Axle - Empty 5740.0 kg (12655.0 lb)
Rear Axle - Empty 5410.0 kg (11927.0 lb)
Total - Empty 26400.0 kg (58202.0 lb)
Front Axle - Rated Load 670.0 kg (1478.0 lb)
Center Axle - Rated Load 13725.0 kg (30258.0 lb)
Rear Axle - Rated Load 13725.0 kg (30258.0 lb)
Total - Rated Load 28120.0 kg (61994.0 lb)
Front Axle - Loaded 15920.0 kg (35098.0 lb)
Center Axle - Loaded 19465.0 kg (42913.0 lb)
Rear Axle - Loaded 19135.0 kg (42185.0 lb)
Total - Loaded 54520.0 kg (120196.0 lb)
Service Refill Capacities
Fuel Tank 412.0 L (108.8 gal)
Cooling System 83.0 L (21.9 gal)
Hydraulic System 110.0 L (29.0 gal)
Engine Crankcase 40.0 L (10.5 gal)
Transmission 35.0 L (9.2 gal)
Final Drives/Differential 135.0 L (35.7 gal)
Output Transfer Gear Box 24.0 L (6.3 gal)
Ejector Cycle Times
Eject Time 12.0 Seconds (12.0 Seconds)
Retract Time 15.0 Seconds (15.0 Seconds)
Sound Levels
Interior Cab 76.0 dB(A) (76.0 dB(A))
Brakes ISO 3450 - 2011
Cab/FOPS ISO 3449 Level II - 2005
Cab/ROPS ISO 3471 - 2008
Steering ISO 5010 - 2007
Lock to Lock 4.75 seconds @ 60 rpm
Body Plate
Type High Strength Brinell HB450 Wear Resistant Steel
Turning Circle
Note Dimensions are for machines equipped with 750/65 tires.
Turning Dimensions - Aisle width 5424.0 mm (214.0 in)
Turning Dimensions - Clearance radius 8075.0 mm (300.0 in)
Turning Dimensions - Inside radius 3749.0 mm (148.0 in)
Turning Dimensions - SAE turning radius 7470.0 mm (286.0 in)
Turning Dimensions - Steer angle - left/right 45.0 Degrees (45.0 Degrees)

Standard Equipment

  • Air conditioning with R134A refrigerant
  • Air vents, adjustable
  • Auto shift six-speed forward and one reverse, transmission
  • Back up alarm
  • Cat C13 ACERT engine with Advanced Combustion Emissions Reduction Technology
  • Cat rearview camera
  • 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 differential locks for all axles
  • Dual circuit caliper disc brakes – all wheels
  • Ejector body, adapted for exhaust heat
  • Electrical system, 24 volt, 5A 24- to 12-volt converter
  • Electro hydraulic hoist control
  • Glass windows:
    • laminated and tinted-front
    • toughened and tinted-sides and rear
  • Ground speed limiting function
  • Guards: rear window, radiator, crankcase and axle
  • Headlights
  • Heater and defroster with four-speed fan
  • Horn, electric
  • Lights: cab interior, front, width marker, side, rear, two reversing/work light, two stop/tail lights, front and rear direction indicators
  • Mirrors, main and auxiliary, left and right
  • Mud flaps, wheel arch and body mounted with transportation tie backs
  • Product Link PL 522 (U.S./Canada/Europe/Turkey/Australia/New Zealand)
  • Retarder: engine compression brake
  • ROPS/FOPS cab, Machine Operation Monitoring System includes
    • Action lamp, engine oil pressure, primary steering system, left turn signal, high beam, coolant temperature, tachometer, parking brake, fuel level, right turn signal, transmission oil temperature, brake system, transmission hold, hoist control, hydraulic system, charging system, retarder, transmission fault, traction control system, check engine lamp
  • Liquid Crystal Display (LCD)
    • Alert indicator, selected gear and direction, speed or auto shift, review Operation and Maintenance Manual (OMM), primary steering failure, secondary steering failure, Machine Security System (MSS), secondary steering energy source engaged, hour meter and retarder active
  • Seat, fully adjustable, air suspension
  • Seat, padded companion/trainer
  • Secondary steering – electronic
  • S•O•S sampling valves
  • Spill guard, front, integral part of fabricated body. (Pivoting for transportation)
  • Starting receptacle, electric, remote
  • Storage: cup holder, flask receptacle, under seat storage, door pocket, behind seat storage, coat hook
  • Sun visor
  • Tailgate
  • Three axle, six-wheel drive
  • Tilt and telescopic steering wheel
  • Tires, six 750/65, radial
  • Tow pin, rear
  • Two seat belts, operator’s 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)

Optional Equipment

  • Auto lube installation for automatic greasing of bearings
  • CD/Radio, heavy duty with auxiliary input
  • Cold weather coolant -51° C (-60° F)
  • Cold weather start attachment
  • Engine block heater
  • Ether start
  • Exhaust heated body
  • Fast fuel fill
  • Flashing LED Beacon
  • Fuel additive-anti-waxing
  • Heated seat
  • Heated rearview motorized mirrors
  • Machine Security System (MSS)
  • Product Link PL 321, PL 523 (where available)
  • Roof mounted, HID, work lights

Enquiry Form

This site is protected by reCAPTCHA and the Google Privacy Policy and Terms of Service apply.