730 EJ Articulated Truck

730 EJ Articulated Truck

360° Exterior View

The Cat 730 EJ with a 16.9 m³ (22.1 yd³)/27.1 tonnes (30 tons) capacity, offers demonstrated reliability and durability, high performance and productivity and a new world-class cab to improve ...
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Engine Model
Cat® C13
No Engine De-rating Below
Engine Model - U.S. EPA Tier 4 Final/EU Stage V
Cat C13
Peak Engine Torque Speed
Net Power - SAE J1349
Gross Power - SAE J1995
Peak Engine Torque Gross (SAE J1995)
Net Power - ISO 14396
The 730 EJ meets Tier 4 Final and Stage V emission standards.
Note (4)
Net power when the fan is at maximum speed is 274 kW (367 hp) per the SAE reference conditions.
Note (3)
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 (2)
The power ratings apply at rated speed of 1,800 rpm when tested under the conditions for the specified standard.
Note (1)
The references to Tier 4 Final/Stage V include U.S. EPA Tier 4 Final, EU Stage V, Japan 2014 (Tier 4 Final), and Korea Tier 4 Final emission standards.
Note (5)
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 certificatio
Peak Engine Torque Net (ISO 14396)


Rated Payload
30ton (US)

Body Capacities

Heaped (SAE 2:1)


Forward - 1
Forward - 2
Forward - 3
Forward - 4
Forward - 5
Forward - 6
Reverse - 1

Service Refill Capacities

Fuel Tank
108.8gal (US)
Cooling System
21.9gal (US)
Hydraulic System
29.1gal (US)
Engine Crankcase
10gal (US)
12.4gal (US)
Final Drives/Differential
33gal (US)
Output Transfer Gear Box
6.3gal (US)
DEF Tank
5.3gal (US)

Sound Levels

Interior Cab
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.
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 72 dB(A), for the cab offered by Caterpillar, when properly installed and maintained and tested with the


ISO 3450 – 2011
Cab - FOPS
ISO 3449 Level II – 2005
Cab - ROPS
ISO 3471 – 2008
ISO 5010 – 2007

Operating Weights

Front Axle - Rated Load
Total - Loaded
Center Axle - Loaded
Rear Axle - Empty
Rear Axle - Rated Load
Front Axle - Loaded
Center Axle - Empty
Total - Rated Load
Front Axle - Empty
Total - Empty
Rear Axle - Loaded
Center Axle - Rated Load


Lock to Lock
4.75 seconds @ 60 rpm

Body Plate

High strength Brinell HB450 wear resistant steel

Turning Circle

Turning Dimensions - Clearance Radius
Turning Dimensions - SAE Turning Radius
Turning Dimensions - Steer Angle - Left/Right
Turning Dimensions - Inside Radius
Turning Dimensions - Aisle Width
Dimensions are for machines equipped with 750/65 R25 tires.

Optimal Loader/Truck Pass Matching

Hydraulic Excavators: 336F/336F XE - Passes
An optimum system match gives you a major productivity advantage. The 730 EJ is an excellent match for the Cat 349F and 336F Hydraulic Excavators; and Cat 972M, 966M, 962M and 950M Wheel Loaders. Having matched loading and hauling tools results in increas
Hydraulic Excavators: 349F/349F XE - Passes
Wheel Loaders: 966M/966M XE - Passes
Wheel Loaders: 972M/972M XE - Passes
Wheel Loader: 962M - Passes
Wheel Loader: 950M - Passes

Eject/Retract Times

Retract Time
Eject Time


  • Every Tier 4 Final/Stage IV and EU Stage V Cat engine is equipped with a combination of proven electronic, fuel, air and aftertreatment components.
  • Maximized uptime and reduced cost with world-class support from the Cat dealer network.
  • Minimized impact of emission systems: designed to be transparent to the operator without requiring interaction.
  • Delivering better fuel economy with minimized maintenance costs while providing the same great power and response.
  • Advanced MEUI-C injector platforms deliver increased injection pressures and more precise fuel rates. These durable injectors enhance responsiveness while controlling soot.
  • All Cat engines feature innovative air-management systems that optimize airflow and enhance power, efficiency and reliability.
  • The Cat NOx Reduction System (NRS) captures and cools a small quantity of exhaust gas, then routes it back into the combustion chamber where it drives down combustion temperatures and reduces NOx emissions.
  • Cat engines equipped with a Selective Catalytic Reduction (SCR) system inject Diesel Exhaust Fluid (DEF) into the exhaust to reduce NOx emissions. DEF is a precisely mixed solution of 32.5 percent high purity chemical grade urea and 67.5 percent de-ionized water.


  • Advanced Automatic Traction Control (AATC) engages inter and cross-axle differential locks on-the-go giving the operator optimum traction as conditions change.
  • Clutches release automatically to avoid conflict during tight turns.
  • AATC reduces tire and driveline wear, eliminating lost efficiency that can occur with improper manual operation.
  • The new ejector body eject/retract switch initiates automated control of machine systems to stop machine travel and eject the loaded material at proper rpm.
  • Hill Assist automatically engages the service brakes if the operator removes his foot from the brake pedal while on a grade reducing potential "roll-back ."
  • The waiting brake system automatically applies the service brakes when the neutral gear is selected, allowing easy control of machine functions at the load or dump area.


  • All three axles promote stability using oscillating a-frames with lateral tie rods. Operate at productive speeds with confidence while virtually eliminating impact loads on truck components.
  • The front suspension oscillates ±6° controlled by large-bore, low-pressure cylinders to assist in a smooth ride.
  • The rear suspension features a walking beam and long-life suspension mounts optimizing ride and load retention.
  • New fully enclosed wet disc brake systems inside of axles keeps contaminants out extending machine life and ensuring uptime.


  • Spacious cab delivers comfort all shift long and is 4dB quieter than prior model.
  • Unique combination eject/transmission lever is intuitive and enhances cycle times with fewer control movements.
  • Trainer/passenger seat is fully padded with wide, retractable seat belt for security and comfort.
  • New large side storage box is heated/cooled by the HVAC system.
  • Air-suspension seat offers greater comfort, with a greater range of adjustments. Fore/aft isolation dramatically reduces vibrations and jolts. Every operator will find a adjustments to ensure comfort and control all shift long.
  • Standard cooling/heating system ensures comfort in all conditions.
  • Optional four-point seat belt is available to help operator stay in position and comfortable in rugged terrain.
  • Integrated, wrap-around dash means all gauges and controls are easy to monitor and access. Automotive feel with Caterpillar's renowned industrial strength.
  • Color display panel provides performance and condition pages, and includes video feed from the rearview camera and machine payload (when fitted).
  • Optional Bluetooth™ entertainment system allows operator to stay in hands-free phone contact.



  • Box section front frame absorb is stiff to handle torque loads. Frame design decreases stress at the hitch and optimizes suspension geometry.

  • Rear frame features twin-box construction minimizing stress points and enhancing service life.

  • Front axle suspension provides excellent ride via a three-point oscillating design.

  • Articulating/oscillating hitch provides steering control and keeps all wheels on the ground in the toughest terrain.

  • Ejector body design provides a large target area for consistent high-load carrying capacity increasing productivity. The blade and body aid in clean material discharge and avoiding carry-back.

  • Output transfer gear distributes power to tractor and trailer for optimum traction. Wet clutch ensures longevity.

  • Dual-circuit, all-wheel braking system uses full-power hydraulic system actuating enclosed, oil immersed, multi-disc brakes. Independent front and rear circuits and accumulators deliver smooth control.

  • Center axle parking brake is elevated away from damage. Spring applied with hydraulic release.


  • Cat Product Link wirelessly connect you to your equipment, giving you valuable insight into how your machine or fleet is performing. The system tracks location, hours, fuel usage, productivity, idle time, and diagnostic codes through the online VisionLink user interface so you can make timely, fact-based decisions to maximize efficiency, improve productivity, and lower costs.
  • Cat Production Measurement brings payload weighing to the cab to help optimize job site efficiency and productivity. Operators can view real-time load weights on the integrated display and know precisely when target is achieved, while cab-mounted external payload lights on all four corners signal the loader operator when to stop, reducing the risk of machine overloading. Operators can track daily productivity from the cab, with quick access to truck payload weights, loads and cycle counts, and daily totals; or remotely via LINK technologies.
  • Cat Detect with Stability Assist warns the operator if machine is approaching a pre-set angle during operation; when driving and tipping. If using the assisted hoist, the machine will stop hoisting the body and give an audible and visual warning. The system monitors angles of tractor, trailer and grade independently. This increases operator awareness of machine stability during operation. All tractor and/or trailer rollover events are logged and reported via VisionLink.


  • Caterpillar design, manufacturing and customer service help ensure peak performance and uptime.
  • Long service intervals keep your machine operating.
  • Lubrication points are grouped near the hitch for fast, easy routine maintenance.
  • Universal joints are sealed and lubed for long life.
  • Optional Autolube system saves time and includes alerts via Product Link for low levels and fault codes.
  • Radiator package is located behind the cab for protection and uses extended-life coolant to stretch change intervals.
  • Electrical Service Center is located inside the cab and provides a power port, diagnostic connector and Cat Data Link connector for use with Electronic Technician (ET) software-equipped laptop computer.
  • Easy access to transmission, drive shafts, hydraulic pumps and electrical and hydraulic interfaces provided with tilt-to-side cab and access panel.
  • Service points are conveniently located on the left side of the engine, under the electrically raised hood.


  • Caterpillar designs and functions with great concern for the environment.
  • Cat C13 engine incorporates the Cat Clean Emission Module (CEM) to meet Tier 4 Final/Stage IV emission standards. The system uses both Ultra-low-sulfur diesel (ULSD) fuel or up to B20 bio-diesel blended with ULSD.
  • All Cat C Series Articulated Trucks are designed for long lifecycles with machines using reman components and machine rebuilds to maximize use of every part, minimizing waste.
  • Volume of both hydraulic and engine oil systems has be reduced meaning less waste when oils are replaced.


  • Seat belt in use indicator (four-point seat belt available as an option)
  • Operator presence detection (prevents gear engagement when operator is not seated)
  • Additional mirror for front of machine visibility
  • Cab mounted, wide angled, folding mirrors
  • Heated mirrors (optional)
  • Body raised visual indicator
  • Cab integral Roll Over Protection System (ROPS) and Falling Object Protection System (FOPS)
  • Electro-hydraulic secondary steering system automatically activates in forward/reverse or when stationary if low pressure is sensed and can be manually selected for machine recovery purposes
  • Extensive handrails
  • External electrical system disconnect switch for easy access from outside of the machine
  • Fire extinguisher in-cab mounting point
  • Fully raised body locking pin
  • Ground level external engine fuel cut-off switch provides easy access outside of the machine
  • In-cab emergency brake switch (tertiary)
  • Internal and external grab handles
  • LED-flashing beacon (optional)
  • Maximum speed limiter
  • Multiple camera compatible
  • New access lights
  • Rearview camera system is fitted as standard
  • Reversing indicator
  • Slip resistant walkways – punched steel plate
  • The parking brake functions are spring applied and hydraulic released
  • Cat Detect with Stability Assist

Standard Equipment:

Optional Equipment:

    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    Optional Equipment
    • Engine block heater
    • Cold weather start attachment
    • Cat Production Measurement payload monitoring system
    • Fast fuel fill
    • Cold weather coolant –51° C (–60° F)
    • Exhaust heated body
    • Ether start
    • Bluetooth radio stereo system
    • Auto lube installation for automatic greasing of bearings
    • Flashing LED beacon
    • Four-point seat belt
    • Fuel additive – anti-waxing
    • Heated rearview motorized mirrors
    • Machine Security System (MSS)
    • Product Link Elite: PLE631 (satellite), PLE641 (cellular)
    • Roof mounted High Intensity Discharge (HID) work lights
    • Sound suppression (only standard in Europe)
    • Heated/cooled seat
    • Infrared glass – high ambient cab
    • Window blinds
    • Wheel chocks