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Medium Excavators(Non Current)

Caterpillar serves all regions of the world so we build many different configurations of hydraulic excavators. Your Cat® dealer has exact machine specifications available in your area to help you choose what will best meet your needs.

329E L/LN Hydraulic Excavator

If you are looking for more productivity and comfort, less fuel consumption and emissions, and easier and more sensible serviceability, you will find it in the all-new 329E and the E Series family of excavators.

  • Specification Summary

  • Engine Model Cat® C7.1 ACERT™
  • Net Flywheel Power 161 kW
  • Bore 105 mm²
  • Stroke 135 mm²
  • Product Brochure


Product Details


Engine Model Cat® C7.1 ACERT™
Net Flywheel Power 161 kW
Bore 105 mm²
Stroke 135 mm²
Displacement 7.01 l
Net Power - ISO 14396 - Imperial 179 kW
Net Power - ISO 14396 - Metric 181 kW
Net Flywheel Power - Imperial 161 kW
Net Power - ISO 14396 179 kW
Net Flywheel Power - Metric 163 kW


Operating Weight 31639 kg
Maximum Weight 31639 kg
Minimum Weight 28717 kg
Maximum Weight** 31639 kg
Minimum Weight* 28717 kg

Service Refill Capacities

Fuel Tank Capacity 520 l
Cooling System 44 l
Final Drive - Each 6 l
Hydraulic System - Including Tank 310 l
Hydraulic Tank 155 l
Swing Drive - Each 10 l
Engine Oil - With Filter 22.5 l

Swing Mechanism

Swing Speed 9.8 r/min


Maximum Drawbar Pull 247 kN
Maximum Travel Speed 5.1 km/h

Hydraulic System

Pilot System - Maximum Flow 23.1 l/min
Pilot System - Maximum Pressure 3920 kPa
Boom Cylinder - Bore 140 mm²
Boom Cylinder - Stroke 1407 mm²
Stick Cylinder - Bore 150 mm²
Stick Cylinder - Stroke 1646 mm²
Maximum Pressure - Travel 35000 kPa
Swing System - Maximum Flow 247 l/min
DB Bucket Cylinder - Bore 135 mm²
Main System - Maximum Flow - Total 494 l/min
Maximum Pressure - Equipment - Normal 35000 kPa
TB Bucket Cylinder - Bore 150 mm²
DB Bucket Cylinder - Stroke 1156 mm²
TB Bucket Cylinder - Stroke 1151 mm²
Maximum Pressure - Swing 27503 kPa
Maximum Pressure - Equipment - Heavy Lift 38000 kPa

Sound Performance

ISO 6396 - Operator Noise (Open) 77 dB(A)
ISO 6396 - Operator Noise (Closed) 72 dB(A)
ISO 6395 - Spectator Noise 105 dB(A)


Brakes ISO 10265 2008
Cab/FOGS ISO 10262 1998
Cab - ROPS ISO 12117-2:2008


Number of Shoes - Each Side - Long Undercarriage 50
Number of Shoes - Each Side - Long Narrow Undercarriage 50
Number of Track Rollers - Each Side - Long Undercarriage 9
Number of Track Rollers - Each Side - Long Narrow Undercarriage 9
Number of Carrier Rollers - Each Side - Long Undercarriage 2
Number of Carrier Rollers - Each side - Long Narrow Undercarriage 2


Reduced emissions, economical and reliable performance

Cat® C7.1 ACERT™ Engine

The Cat C7.1 ACERT engine delivers more horsepower using less fuel than the previous series engine.

Emissions Solution

The C7.1 ACERT engine is equipped to meet Stage IIIB emission standards. Driven by customer input, Caterpillar’s aftertreatment regeneration solution ensures the machine works as normal with no operator intervention needed. The machine comes with two modes of regeneration: automatic and manual. In automatic mode, the machine starts the regeneration process once the filtering system reaches a certain level and conditions are optimal. The system will not interrupt the work process and can regenerate during machine operation. Manual mode enables the operator to override the automatic mode. With a touch of a button inside the cab, this mode allows the operator to move the machine from flammable or heat-restricted areas before initiating the regeneration process.

Biodiesel-Ready Fuel System

The C7.1 ACERT engine is equipped with an electronic-controlled high-pressure fuel system that includes an electric priming pump and three-layer fuel hose to allow the use of biodiesel (meeting ASTM 6751 or EN 14214) up to B20 (biodiesel 20% mixture).

Cooling System

The cooling system features side-by-side and tilt-out radiators, oil cooler and air coolers for easy cleaning and a fan that automatically adjusts to ambient temperatures to help reduce fuel consumption and noise.

Speed and Power Control

The E Series features speed control to maintain a constant speed - regardless of load - to improve fuel economy. Three different power modes are offered: high power, standard power, and economy power. The operator can easily change between modes through the monitor or console switch to meet the needs for the job at hand - all to help manage and conserve fuel.

Operator Station

Comfort and convenience to keep people productive


The seat range includes air suspension, heated, and air cooled options. All seats include a reclining back, upper and lower seat slide adjustments, and height and tilt angle adjustments to meet operator needs for comfort and productivity.


The right and left joystick consoles can be adjusted to meet individual preferences, improving operator comfort and productivity during the course of a day. With the touch of a button, one-touch idle reduces engine speed to help save fuel; touch it again or move the joystick and the machine returns to normal operating level. The heavy lift mode increases machine system pressure to improve lift - a nice benefit in certain situations. Heavy lift mode also reduces engine speed and pump flow in order to improve controllability.


The 329E is equipped with a 7" LCD (Liquid Crystal Display) monitor that’s 40% bigger than the previous model’s with higher resolution for better visibility. In addition to an improved keypad and added functionality, it’s programmable to provide information in a choice of 42 languages to support today’s diverse workforce. An “Engine Shutdown Setting” accessible through the monitor allows owners and operators to specify how long the machine should idle before shutting down the engine, which can save significant amounts of fuel. The image of the rearview camera is displayed directly on the monitor. Up to two different camera images can be displayed on the screen at the same time.

Power Supply

Two 12-volt power supply sockets are located near key storage areas for charging electronic devices.


Storage spaces are located in the front, rear, and side consoles. A specific space near the auxiliary power supply holds MP3 players and cell phones. The drink holder accommodates large mugs with handles, and a shelf behind the seat stores large lunch or toolboxes.

Automatic Climate Control

The climate control system features five air outlets with positive filtered ventilation, which makes working in the heat and cold much more pleasant.


Power to move more dirt, rock, and debris with speed and precision

Hydraulic Horsepower

Hydraulic horsepower is the actual machine power available to do work through implements and work tools. It’s much more than just the engine power under the hood - it’s a core strength that differentiates Cat machines from other brands.

Main Control Valve and Auxiliary Valves

The 329E uses a high-pressure system to tackle the toughest of work in short order. The machine features a highly efficient and simple back-to-back main control valve to improve fuel consumption and reliability. Also, shortened spool lengths and a built-in drift reduction valve have been added for greater controllability.

Swing Priority Circuit

The swing priority circuit on the 329E uses an electric valve that’s operated by the machine’s Electronic Control Module (ECM). Compared to using a hydraulic valve, an electric valve allows for more finely tuned control, which is critical during material loading.


SmartBoom reduces stress and vibrations transmitted to the machine and provides a more comfortable environment. It is particularly well suited for the following applications:
  • Rock scraping. SmartBoom simplifies the task and allows the operator to concentrate on stick and bucket, while the boom freely goes up and down without using pump flow.
  • Hammer work. The front parts automatically follow the hammer while penetrating the rock. Blank shots or excessive force on the hammer are avoided, resulting in longer life for the hammer and the machine.

Electric Boom Regeneration Valve

This valve minimizes pump flow when the boom lowers, which helps improve fuel efficiency. It is optimized for any dial speed setting being used by the operator and results in less pressure loss for higher controllability, more productivity, and lower operating costs.

Structures & Undercarriage

Built to work in rugged environments


The upper frame (1) includes reinforced mountings to support the Roll-Over Protective Structure (ROPS) cab; the lower frame is reinforced to increase component durability.


Fixed gauge long and long narrow undercarriage systems are available to support various work applications. Heavy-duty track rollers, precision-forged carrier rollers (2), press-fit pin master joints, and enhanced track shoe bolts improve durability and reduce the risk of machine downtime and the need and cost to replace components. A segmented three-piece guiding guard is now offered to help maintain track alignment and improve performance in multiple applications.


The standard counterweight (3) weighs 5.8 mt. Super Long Reach (SLR) configurations come with a heavier 6.75 mt counterweight. Integrated links enable easy removal of the counterweight for maintenance or shipping.

Front Linkage

Made for high stress and long service life

Booms and Sticks

The 329E is offered with a range of booms and sticks (see list below). Each is built with internal baffle plates for added durability, and each undergoes ultrasound inspection to ensure weld quality and reliability. Large box-section structures with thick, multi-plate fabrications, castings, and forgings are used in high-stress areas such as the boom nose, boom foot, boom cylinder, and stick foot to improve durability. The boom nose pin retention method is a durable captured flag design. Boom durability is improved with a number of plate thickness changes. Also, the front linkage pins’ inner bearing surfaces are welded, and a self-lubricated bearing is used to extend service intervals and increase uptime.


There are four basic boom options: HD, ES, SLR, and ME. Sticks match the boom descriptions and applications below:

Work Tools

Dig, hammer, rip, and cut with confidence

An extensive range of Cat Work Tools for the 329E includes buckets, hydraulic hammers, multi-processors, scrap and demolition shears, grapples, and rippers. Each is designed to optimize machine versatility and performance.

CW Quick Couplers

Quick couplers allow one person to change work tools in seconds for maximum performance and flexibility on a job site. One machine can move rapidly from task to task, and a fleet of similarly equipped machines can share a common work tool inventory. The CW quick coupler can pick up any work tool and is equipped with a wedge-style locking system that fits the quick coupler tight to the tool hinges. Due to the tapered wedge design, there won’t be any play during its entire life. Also, it is interchangeable with different machine classes. The CW is highly suitable for harsh applications such as demolition and quarries.


Cat buckets are designed as an integral part of the 329E system and feature new geometry for better performance. The leading edge has been pushed forward, resulting in more efficient filling and better operator control for greatly improved productivity. Wear coverage in the corners and side cutter and sidebar protector coverage are improved; a new lift eye design accepts a wide range of shackle sizes. All benefits are captured in a new bucket line with a new bucket naming convention. Following are the types offered:

Four Durability Categories Suitable for Any Situation

Caterpillar offers four standard bucket categories for excavators. Each category is based on intended bucket durability when used in recommended applications and material. Each bucket durability type is available as pin-on or can be used with a Quick Coupler. Red areas on bucket images illustrate additional protection against wear as it increases across each category.

Special Buckets

Special buckets are available for the 329E on request.

Comprehensive Product Support

All Cat Work Tools are backed up by a world-wide network of well-stocked parts depots and highly experienced service and support personnel.

Integrated Technologies

Solutions that make work easier and more efficient

Cat® Grade Control Depth and Slope

This optional system combines traditional machine control and guidance with standard machine components at the factory. With factory-installed and calibrated components, the system is ready to go to work the moment it leaves the factory. The system utilizes internal front linkage sensors - well protected from the harsh working environment - to give operators real-time bucket tip position information through the cab monitor (1), which minimizes the need and cost for traditional grade checking and improves job site safety. It also helps the operator complete jobs in fewer cycles, which means less fuel use. Cat dealers can upgrade the system to full three-dimensional control by adding proven Cat AccuGrade™ positioning technologies, including GPS and Universal Total Station (UTS).

Cat Product Link

This deeply integrated machine monitoring system (2 and 3) is designed to help customers improve their overall fleet management effectiveness. Events and diagnostic codes as well as hours, fuel consumption, idle time, machine location, and other detailed information are transmitted to a secure web based application called VisionLink™, which uses powerful tools to communicate to users and dealers.


Fast, easy and safe access built in

Service Doors

Wide service doors (1) and a one-piece hood design (2) provide easy access to the engine and cooling compartments. Both doors and hood feature enhanced hardware and a new screen design to help minimize debris entry.


The radiator, pump, and air cleaner (3) compartments provide easy access to major components. The fresh air filter (4) is located on the side of the cab to make it easy to reach and replace as needed.

Other Services

The water separator with water level sensor has a primary fuel filter element located in the pump compartment near ground level; the electric priming pump is mounted on the primary filter base and is easy to service compared to traditional hand-priming pumps. The fuel tank features a remote drain cock located in the pump compartment to make it easy to remove water and sediment during maintenance. The engine oil check gauge and oil filter are situated in front of the engine compartment for easy access, and a uniquely designed drain cock helps prevent spills.


Features to help protect people


The ROPS-certified cab (1) allows a Falling Object Guard Structure (FOGS) to be bolted directly to it.

Sound Proofing

Improved sealing and roof lining lower noise levels inside the cab significantly during machine operation.

Anti-Skid Plates

The surface of the upper structure and the top of the storage box area are covered with anti-skid plates to help prevent service personnel and operators from slipping during maintenance.

Steps, Hand and Guard Rails

Steps on the track frame and storage box (2) along with extended hand and guard rails (3) to the upper deck enable operators to securely work on the machine.

Time Delay Cab and Boom Lights

After the engine start key has been turned to the “OFF” position, lights will be illuminated to enhance visibility. The time delay can vary from 0 to 90 seconds, which can be set through the monitor.

High Intensity Discharge (HID) Lights

Cab lights can be upgraded to HID for greater visibility.

Visibility - Windows

Two windshield options are available: The 70/30 split configuration features an upper window equipped with handles on the top and both sides so the operator can slide it to store in the ceiling. The lower window is removable and can be stored on the left wall of the cab shell. A one-piece fixed front windshield provides operators an unobstructed forward view. The large skylight provides great overhead visibility, excellent natural lighting, and good ventilation. The skylight can be opened completely to become an emergency exit.

Wiper System

Designed to maximize visibility in poor weather conditions, the parallel wiper system covers most of the front window without leaving unwiped areas in the line of sight of the operator. The wiper motor is integrated to the upper frame so that it does not obstruct any part of the forward view.

Monitor Warning System

The monitor is equipped with a buzzer that can warn operators of critical events so they can take any necessary action.

Rearview Camera

The standard rearview camera is housed in the counterweight (4). The image projects through the cab monitor to give the operator a clear view of what is behind the machine.

Complete Customer Care

Service you can count on

Product Support

Cat dealers utilize a worldwide parts network to maximize your machines’ uptime. Plus they can help you save money with Cat remanufactured components.

Machine Selection

What are the job requirements and machine attachments? What production is needed? Your Cat dealer can provide recommendations to help you make the right machine choices.


Consider financing options and day-to-day operating costs. Look at dealer services that can be included in the machine’s cost to yield lower owning and operating costs over time.

Customer Support Agreements

Cat dealers offer a variety of customer support agreements and work with you to develop a plan to meet your specific needs. These plans can cover the entire machine, including attachments, to help protect your investment.


Improving operating techniques can boost your profits. Your Cat dealer has videos, literature, and other ideas to help you increase productivity. Caterpillar also offers simulators and certified operator training to help maximize the return on your investment.


Repair, rebuild, or replace? Your Cat dealer can help you evaluate the cost involved so you can make the best choice for your business.


Generations ahead in every way

  • The C7.1 ACERT engine, along with the Cat Clean Emissions Module (CEM), meets EU Stage IIIB emissions regulations.
  • The 329E produces more while burning less fuel than the previous D Series model. This means more efficiency, less resources consumed, and fewer CO2 emissions.
  • The 329E has the flexibility of running on either ultra-low-sulfur diesel (ULSD) fuel with 15 ppm of sulfur or less or biodiesel (B20) fuel blended with ULSD.
  • A ground-level overfill indicator rises when the tank is full to help the operator avoid spilling.
  • The QuickEvac™ option ensures fast, easy, and secure changing of engine and hydraulic oil.
  • The 329E is built to be rebuilt with major structures and components capable of being remanufactured to reduce waste and replacement costs.
  • An eco-friendly engine oil filter eliminates the need for painted metal cans and aluminum top plates. The cartridge-style spin-on housing enables the internal filter to be separated and replaced; the used internal element can be incinerated to help reduce waste.
  • The 329E is an efficient, productive machine that’s designed to conserve our natural resources for generations ahead.
    •  C7.1 diesel engine
    •  Biodiesel capable
    •  EU Stage IIIB emissions
    •  2300 m altitude capability
    •  Electric priming pump
    •  Automatic engine speed control
    •  Standard, economy and high power modes
    •  Two-speed travel
    •  Side-by-side cooling system
    •  Radial seal air filter
    •  Air pre-filter
    •  Primary filter with water separator and water separator indicator switch
    •  Fuel differential indicator switch in fuel line
    •  1×4 micron main filters
    •  1×10 micron primary fuel line filter
    •  Regeneration circuit for boom and stick
    •  Reverse swing dampening valve
    •  Automatic swing parking brake
    •  High-performance hydraulic return filter
    •  Capability of installing HP stackable valve and medium and QC valve
    •  Capability of installing additional auxiliary pump and circuit
    •  Boom lowering control device with SmartBoom™
    •  Stick lowering check valve
    •  Capability of installing Cat Bio hydraulic oil
  • CAB
    •  Pressurized operator station with positive filtration
    •  Mirror package
    •  Sliding upper door window (left-hand cab door)
    •  Glass-breaking safety hammer
    •  Coat hook
    •  Beverage holder
    •  Literature holder
    •  Two stereo speakers
    •  Storage shelf suitable for lunch or toolbox
    •  Color LCD display with warning, filter/fluid change, and working hour information
    •  Adjustable armrest
    •  Height adjustable joystick consoles
    •  Neutral lever (lock out) for all controls
    •  Travel control pedals with removable hand levers
    •  Capability of installing two additional pedals
    •  Two power outlets, 10 amp (total)
    •  Laminated glass front window and tempered other windows
    •  Windshield wiper, parallel type
    •  Sunscreen
    •  Radio 12V mounting
    •  Openable roof hatch
    •  Grease Lubricated Track GLT2, resin seal
    •  Towing eye on base frame
    •  Swivel guard
    •  HD travel motor guards
    •  Heavy Duty Roller (Single Flange Roller)
    •  80 amp alternator
    •  Circuit breaker
    •  Capability to electrically connect a beacon
  • 80 amp alternator
    • Circuit breaker
      • Capability to electrically connect a beacon
        • LIGHTS
          •  Boom lights with time delay
          •  Cab lights with time delay
          •  Exterior lights integrated into storage box
        • SECURITY
          •  Cat one key security system
          •  Door locks
          •  Cap locks on fuel and hydraulic tanks
          •  Lockable external tool/storage box
          •  Signaling/warning horn
          •  Secondary engine shutoff switch
          •  Openable skylight for emergency exit
          •  Rearview camera
        • Cat one key security system
          • Door locks
            • Cap locks on fuel and hydraulic tanks
              • Lockable external tool/storage box
                • Signaling/warning horn
                  • Secondary engine shutoff switch
                    • Openable skylight for emergency exit
                      • Rearview camera
                        • TECHNOLOGY
                          •  Product Link
                        • ENGINE
                          •  Electric refueling pump with auto shut off
                          •  Starting kit, cold weather, -32° C
                          •  Jump start receptacle
                          •  Quick drains, engine and hydraulic oil
                        • Electric refueling pump with auto shut off
                          • Starting kit, cold weather, -32° C
                            • Jump start receptacle
                              • Quick drains, engine and hydraulic oil
                                • HYDRAULIC SYSTEM
                                  •  Additional circuit
                                  •  Boom and stick lines
                                  •  High-pressure line
                                  •  Medium-pressure line
                                  •  Cat quick coupler line - high- and medium-pressure capable
                                  •  Quick coupler tool control system
                                  •  Tool 20, Electronic Control device, 1/2P, common circuit
                                  •  Tool 21, Electronic Control device, 1/2P, one-way circuit
                                • Additional circuit
                                  • Boom and stick lines
                                    • High-pressure line
                                      • Medium-pressure line
                                        • Cat quick coupler line - high- and medium-pressure capable
                                          • Quick coupler tool control system
                                            • Tool 20, Electronic Control device, 1/2P, common circuit
                                              • Tool 21, Electronic Control device, 1/2P, one-way circuit
                                                • CAB
                                                  •  Seat, high-back air suspension with heater and cooling
                                                  •  Seat, high-back air suspension with heater
                                                  •  Travel alarm
                                                  •  Left pedal
                                                  •  Straight travel pedal
                                                  •  Rain protector
                                                • Seat, high-back air suspension with heater and cooling
                                                  • Seat, high-back air suspension with heater
                                                    • Travel alarm
                                                      • Left pedal
                                                        • Straight travel pedal
                                                          • Rain protector
                                                            • UNDERCARRIAGE
                                                              •  600 mm triple grouser shoes
                                                              •  600 mm HD triple grouser shoes
                                                              •  700 mm HD triple grouser shoes
                                                              •  800 mm triple grouser shoes
                                                              •  900 mm triple grouser shoes (Long Undercarriage only)
                                                              •  Guard, full length
                                                              •  Center track guiding guard
                                                              •  Segmented (2 piece) track guiding guard
                                                            • 600 mm triple grouser shoes
                                                              • 600 mm HD triple grouser shoes
                                                                • 700 mm HD triple grouser shoes
                                                                  • 800 mm triple grouser shoes
                                                                    • 900 mm triple grouser shoes (Long Undercarriage only)
                                                                      • Guard, full length
                                                                        • Center track guiding guard
                                                                          • Segmented (2 piece) track guiding guard
                                                                            • COUNTERWEIGHT
                                                                              •  5.8 mt
                                                                              •  6.75 mt for SLR boom/stick package
                                                                            • FRONT LINKAGE
                                                                              •  Bucket linkage, CB2 family with lifting eye
                                                                              •  Bucket linkage, DB family with lifting eye
                                                                              •  Heavy-duty reach boom 6.15 m
                                                                              •  R2.65CB2 HD 2650 mm stick
                                                                              •  R3.2CB2 HD 3200 mm stick
                                                                              •  Extreme service reach boom 6.15 m
                                                                              •  R2.65CB2 ES 2650 mm stick
                                                                              •  R3.2CB2 ES 3200 mm stick
                                                                              •  Mass boom 5.55 m
                                                                              •  M2.5DB 2500 mm stick
                                                                              •  SLR boom 10.2 m
                                                                              •  7850 mm stick
                                                                            • LIGHTS
                                                                              •  Halogen lights, cab mounted
                                                                              •  HID lights, cab mounted
                                                                            • SECURITY
                                                                              •  FOGS, bolt-on
                                                                              •  Guard, cab front, mesh
                                                                              •  Cat MSS (anti-theft device)
                                                                            • TECHNOLOGY
                                                                              •  Cat Grade Control Depth and Slope
                                                                            • Cat Grade Control Depth and Slope

                                                                              360° Exterior View

                                                                              360° Interior View

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