Caterpillar 323

Excavators / Excavators

The Caterpillar 323: An Overview

The Caterpillar 323 is a medium-sized excavator that is used for a variety of construction and mining applications. It's well-known for its reliable performance, versatility, and ease of operation. The Caterpillar 323 has a robust design that makes it suitable for a wide range of applications, from residential construction to large-scale mining operations.


Model Price$198,000
Daily rental price$1,070
Half day rental price$535
Weekly rental price$2,855
Operating weight (pounds)50900
Maintenance cost per hour$20
Monthly maintenance cost$1,782
Fuel cost per month$0
Hourly fuel consumption (gallons)0
Monthly financing payments (new)$0
Monthly financing payments (used)$0

Cat 323: Key Features


Use up to 20% less fuel than the 323F excavator.

Increase operator efficiency by up to 45% with a suite of Cat technologies that lower operator fatigue and your operating costs, including fuel consumption and daily maintenance.

Match the excavator to the job using power modes including new Smart mode that automatically matches engine and hydraulic power to your digging conditions.

The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for your precise digging requirements.

The electronically controlled, turbocharged engine meets U.S. EPA Tier 4 Final and EU Stage IV emission standards using a transparent after treatment system that requires no operator input or downtime.

Auxiliary hydraulic options give you the versatility to use a wide range of Cat attachments.

Don't let the temperature stop you from working. The excavator has a standard high ambient temperature capability of 52º C (125º F) and cold start capability of -18º C (0º F). An optional -32º C (-25º F) cold start package is available.


Boost productivity up to 45% vs traditional grading with the standard Cat GRADE with 2D system – includes indicate-only and laser capability.

Dig with real-time guidance on depth, slope, and horizontal distance to grade.

The 2D system is upgradeable to Cat GRADE with Advanced 2D or Cat GRADE with 3D.

Standard Grade Assist -

  • Stay on grade - simply and effortlessly - with single-lever digging.

  • Set your desired bucket angle and let Bucket Assist automatically maintain the angle in sloping, leveling, fine grading, and trenching applications for easy, accurate, and fast jobs.

  • Keep your tracks on the ground in lifting and hard digging with Boom Assist. Automatically stop excavator swing at operator-defined set points in truck loading and trenching applications with Swing Assist, which will help you use less effort and consume less fuel.

Standard Cat PAYLOAD on-board weighing system -

  • Achieve precise load targets and increase loading efficiency with on-the-go weighing and real-time estimates of your payload without swinging.

  • Take payload data with you. The monitor’s USB port lets you download your results from one shift all the way up to 30 days of work so can manage your progress without needing an internet connection or VisionLink subscription.

  • Track your daily productivity such as truck target weights and load/cycle counts.

  • Calibration can be performed in a matter of minutes.

  • Combine Payload with VisionLink® and remotely manage your production targets.

Upgrade to optional Cat GRADE with Advanced 2D -

  • Create and edit grade designs with ease on a second high-resolution 10 in (254 mm) touchscreen monitor.

Upgrade to optional Cat GRADE with 3D -

  • Create and edit designs with ease and see the front linkage's full range of motion on a second high-resolution 10 in (254 mm) touchscreen monitor.

  • Know the excavator's exact position relative to GPS and GLONASS systems.

  • Already invested in another brand’s 3D system? No problem. Standard Cat technology like GRADE with 2D can readily integrate with that system to give you the precise results you need.

  • The machine automatically compensates for excavator pitch and roll caused by sloping ground conditions.

Standard Product Link™ provides location, machine hours, fuel usage, productivity, idle time, diagnostic codes, and other machine data on demand through VisionLink® online interface, helping you improve jobsite efficiency with lower operating costs.

Improve your accuracy and safety – Add a new Cat Tiltrotator system upgrade with factory-fit joysticks. The system allows a Tiltrotator to work with standard Cat 2D Grade and E-Fence; it uses the standard cab monitor to display the tool and engage its SecureLock™ so you don’t need spend money on an extra monitor.

All Cat Grade systems are compatible with radios and base stations from Trimble, Topcon, and Leica. Already invested in a grade infrastructure? You can install grade systems from Trimble, Topcon, and Leica onto the machine.


  • Two cab options – Deluxe, and Premium – let you choose the level of comfort you need.

  • Enjoy wide spacing between consoles for a more spacious comfortable environment.

  • Sit in new, wide seats that adjust for operators of all sizes (heated and heated/cooled options are available).

  • Get in and out of the cab easier using the tip-up left console (in Deluxe and Premium cabs only).

  • Control the excavator comfortably with easy-to-reach controls located in front of you.

  • Standard automatic climate control keeps you at the right temperature throughout your shift.

  • Improved viscous mounts reduce cab vibration by up to 50% over our previous excavator models.

  • Stow your gear with plenty of in-cab storage behind the seat, overhead, and in the consoles. A cup holder, document holder, bottle holder, and coat hook are included.

  • The standard radio has USB ports and Bluetooth® technology enabled to connect your device and make hands-free calls.


  • Protect hydraulic components in cold weather. The auto warm-up feature speeds hydraulic oil warming in cooler temperatures.

  • The fuel system is protected from contamination of fuel by three levels of filtration.

  • Bottom guarding protects engine and hydraulic components from damage while swinging and traveling.

  • The hydraulic tank with a new oval shape designed to improve stress resistance.

  • The strong X-structure lower frame carries loads from the excavator's upper structure to the track.

  • Travel motor hydraulic lines are routed inside of the frame to protect them from damage.

  • The sloped track frame design prevents mud and debris from accumulating and damaging tracks.

  • The grease lubricated tracks have grease sealed between the pin and bushing to prevent debris from entering and reducing life.

  • The track rollers are rebuild-able and sealed to prevent dirt and debris causing wear of internal components.

  • A bolt-on track guiding guard helps maintain track alignment while traveling or working on slopes.


  • You can navigate quickly on the standard, high-resolution 8 in (203 mm) touchscreen monitor or with the optional 10 in (254 m) touchscreen monitor or with the aid of the jog dial control.

  • A second 10 in (254 mm) monitor is available for the advanced grade control.

  • Easy keyless push-to-start engine using your Bluetooth key fob to enable the pushbutton start feature.

  • Match the excavator's operation to your digging style by adjusting the joystick response and programming the function of each joystick button.

  • Easily use the monitor to change the joystick pattern from the cab. You can choose two-way or four-way patterns options. Store your pattern preference and let the machine automatically set the pattern when you log in with your unique Operator ID.

  • Protect your hammer from overworking. Auto hammer stop warns you after 15 seconds of continuous firing and then automatically shuts it off after 30 seconds -- all to prevent wear and tear on the attachment and excavator.

  • Not sure how a function works or how to maintain the excavator? Always have the operator's manual at your fingertips in the touchscreen monitor.

  • The Cat PL161 Attachment Locator is a Bluetooth device that makes finding your attachments and other gear quick and easy. The excavator's onboard Bluetooth reader or Cat App on your phone will locate the device automatically.

  • Save more time and energy with the available work tool recognition feature. A simple shake of the attached tool confirms its identity; it also ensures all the attachment settings are correct so you can get to work quickly and efficiently.

  • Auto Dig Boost increases power by up to 8% for better bucket penetration, shorter cycle times, and greater payloads.

  • Make moving the excavator much easier with Cat Stick Steer. Simply push a button and use one hand to travel and turn instead of both hands or feet on levers or pedals.

  • Need more lift during your shift? Turn on Auto Heavy Lift and get 8% more power exactly when you need it for as long as you need it.


  • Extended maintenance intervals reduce upkeep costs by 25% over the Cat 323F excavator (15% savings calculated over 12,000 machine hours).

  • Reversing electric cooling fans make it easy to clean radiator, oil coolers, and condensers.

  • An all-new engine air cleaner with integrated pre-cleaner has twice the life of radial seal air cleaners.

  • Using Cat genuine oil and filters and doing your typical S∙O∙S monitoring will double the current service interval to 1,000 hours, giving you greater uptime to do more work.

  • The new hydraulic oil filter provides improved filtration performance, anti-drain valves to keep oil clean when the filter is replaced, and longer life with a 3000 hour replacement interval – 50% longer than previous filter designs.

  • Track your excavator's filter life and maintenance intervals can via the in-cab monitor.

  • Check engine oil level quickly and safely with the new engine oil dip stick located on ground level.

  • S·O·S ports with extended sampling intervals are on ground level, simplifying maintenance and allows for quick easy extraction of samples for fluid analysis.


  • Work safely under structures or near traffic with the standard 2D E-fence feature integrated right out of the factory, which prevents any part of the excavator from moving outside operator-defined set points, avoiding hazards and jobsite accidents.

  • Access 100% of daily maintenance points from ground level – no need for you to climb on top of excavator.

  • The standard ROPS cab meets ISO 12117-2 2008 requirements.

  • Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab pillars, larger windows, and a flat engine hood design.

  • The standard hydraulic lockout lever isolates all hydraulic and travel functions in the lowered position.

  • Ground level shut-off switch stops all fuel to the engine when activated and shuts down the machine.

  • A rearview camera is standard and upgradeable to an optional 360° visibility camera for visibility all around the excavator, allowing the operator to easily visualize objects and personnel around the excavator in a single view.

  • New right-hand service platform design provides easy, safe, and quick access to upper service platform; the service platform steps use anti-skid punch plate to prevent slipping. The handrails comply with ISO 2867 requirements.

  • Enhance operator safety by adding Cat Command to your fleet. The remote control system keeps you away from potential hazards. The new non-line-of-site kit comes with Wi-Fi radio, cameras, and microphone to allow you to work anywhere you want.

  • Make service work easier and safer with optional inspection lighting. With the flip of a switch, lights will illuminate the engine, pump, battery, and radiator compartments to enhance visibility.

  • Cat Detect - People Detection helps protect the most valuable asset on any jobsite – people. The system uses smart cameras with depth sensors to provide the operator with visual and auditory alerts so he or she can take immediate action when a person is too close to the excavator.

Cat 323 Specs: A Closer Look


Engine Model - Cat C7.1 ACERT

Net Flywheel Power - 162.00 hp

Gross Power – SAE J1995 - 164.00 hp

Net Power – SAE J1349 - 162.00 hp

Bore - 4.00 in

Stroke - 5.00 in

Displacement - 428.00 in3


Main System – Maximum Flow (Total) - 113.00 gal/min

Maximum Pressure - Equipment - Normal - 5075.00 psi

Maximum Pressure – Travel - 4974.00 psi

Maximum Pressure – Swing - 3886.00 psi

Most Common Uses

The Caterpillar 323 is primarily used for excavating, trenching, and demolition work. It is also used for loading and unloading materials, such as sand, gravel, and dirt. The Caterpillar 323 is also used for land clearing, road construction, and foundation work.


The Caterpillar 323 has a base price of $198,000. If you need to rent the machine, the cost is $1,070 for a full day, $535 for a half day, and $2,855 for a week.

Operating Weight and Maintenance Costs

The Caterpillar 323 has an operating weight of 50,900 lbs. The estimated monthly costs for the machine are approximately $1,500.

Fuel Costs

The estimated fuel cost per month for the Caterpillar 323 is $2,000. The estimated hourly fuel cost is $35.

Similar Models

If you are looking for a similar model to the Caterpillar 323, you may want to consider the Caterpillar 330, the Caterpillar 336, or the Caterpillar 345. A great choice for an excavator can be Caterpillar 320EL. All of these models are similar in size and performance to the Caterpillar 323.


The Caterpillar 323 is a reliable and versatile excavator that is suitable for a variety of applications. It is well-priced, and its operating weight and upkeep costs are relatively low. If you are looking for a medium-sized excavator, the Caterpillar 323 is an excellent choice.

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