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340 Large Excavators

The Cat® 340 is evidence of our time-proven engineering and manufacturing know-how for top-notch quality, reliability, and durability. In addition to a powerful engine with millions of hours of service and reinforced booms and sticks for taking on hard and heavy work, the standard, heavy-duty reinforced undercarriage expertly absorbs the stress between jobsite terrain and machine. Built for rugged conditions, this rock-solid machine will help you turn payloads into profit.

340

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Cat® 340 hydraulic trackhoe excavators bring premium power, performance, control, digging, trenching, and heavy lifting capacity to your large scale projects.

Net Power - ISO 9249
346 hp
Operating Weight
81200 lb
Maximum Digging Depth
24.5 ft
Net Power - ISO 9249 (DIN)
351 hp (metric)
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Engine specifications
Net Power - ISO 9249 258.3 kW
Net Power - ISO 9249 (DIN) 351 hp (metric)
Engine Model Cat C9.3B
Engine Power - ISO 14396 259 kW
Engine Power - ISO 14396 (DIN) 352 hp (metric)
Bore 115 mm
Stroke 149 mm
Displacement 9.3 l
Biodiesel Capability Up to B20¹
Emissions Meets UN ECE R96 Stage IIIA emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA
Note (1) Net power advertised is the power available at the flywheel when the engine is equipped with fan, air intake system, exhaust system, and alternator with engine speed at 2,000 rpm. Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (2) ¹Cat engines are compatible with diesel fuel blended with the following lower-carbon intensity fuels** up to 100% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO (hydrogenated vegetable oil) and GTL (gas-to-liquid) fuels. Refer to guidelines for successful application. Please consult your Cat dealer or "Caterpillar Machine Fluids Recommendations" (SEBU6250) for details. *For use of blends higher than 20% biodiesel, consult your Cat dealer. ** Tailpipe greenhouse gas emissions from lower-carbon intensity fuels are essentially the same as traditional fuels.

Features

Latest Features

Machine Setup Simplification
        
  • At the touch of fingertips and navigating user-friendly icons, the latest operator oriented User Interface (UI) maximizes uptime and gets crews to work without delay. From re-ordering work tool lists to creating new work tool combinations as needed, operators can quickly set up machines and easily access information.
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  • The interface allows operators to maintain accuracy and makes the most of every second of their shift. Adding the ability to input couplers and attachments into the system makes setting up work tool combinations highly efficient by significantly reducing calibration time. It also eliminates the need to measure up again when changing Cat® work tool attachments and makes it manageable for a single person to check and adjust for bucket wear.

Cat Grade 3D Ready
        
  • The Cat Grade 3D Ready option includes all the hardware required for the Grade with 3D system, installed and tested from the factory. This option provides an easier upgrade path for customers who want to add Grade with 3D after their initial purchase. To activate, contact your Cat Dealer to purchase the required 3D software licenses. Licenses can be installed remotely or manually loaded onto the machine.

Cat Payload and Advanced Payload*
        
  • Cat Payload provides operators with on-the-go weighing to help them hit load targets and avoid overloading, underloading, or misloading materials. Advanced Payload is a system upgrade that offers expanded features and capabilities, including custom tags, daily totals, and electronic ticketing. Combine Payload with VisionLink™** to analyze jobsites and individual assets for remote management of production targets and key metrics.

*Payload technologies are not legal for trade.
**VisionLink subscription required. 

Not all features are available in all regions. Please check with your local Cat dealer for specific offering availability in your area. Build Number: 08D

Performance Powerhouse

        
  • Work up to 4500 m (14,764 ft) above sea level without de-rating.
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  • Powerful swing torque easily handles changes in momentum, uneven terrain, and consistent high-impact connections, helping operators make their work swift and precise.
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  • Did you know baffle plates help increase an excavator’s strength-to-weight ratio? That is why Caterpillar incorporates the plates in high-stress areas like the boom, stick, and frame. Reinforcing the machine without adding significantly more weight also helps provide years of reliable performance, even in the harshest environments.
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  • The cylinder rods are reinforced with additional wear rings to help reduce oil leaks. The car body has thick baffle plates for a long service life. The thick track link has large bolt joints to help maintain bolt retention. Track rollers have a large shaft diameter to help prevent bending and oil leaks while increasing the 340s loading capacity, which means more reliable production for you.
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  • Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to increase undercarriage life.
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  • The center track guiding guard helps align the excavator track when traveling and working on slopes.
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  • The sloped track frame prevents mud and debris accumulation, helping reduce the risk of track damage.
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  • Auxiliary hydraulic options allow you to use a wide range of Cat® attachments.
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  • Advansys™ bucket tips increase penetration and improve cycle times. Tip changes can be done quickly with a simple lug wrench instead of a hammer or special tool, improving safety and uptime.
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  • Match the excavator to the job with three operating modes: Power, Smart, and Eco.
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  • Smart mode automatically adjusts power for the highest fuel efficiency – less power for tasks such as swinging and more power for digging.
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  • Enhanced heavy lift mode increases system pressure to help you easily pick and place heavy material.
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  • Auto warm-up speeds up hydraulic oil warming in cold temperatures and helps prolong the life of components.
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  • Don’t let the temperature stop you from working. This excavator has a standard high-ambient temperature capability is 52° C (125° F) with cold start capability at –18° C (0° F).
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  • An optional battery-operated engine heater enables starting at –32° C (–25.6° F).
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  • The Cat® C9.3B engine meets UN ECE R96 Stage IIIA emission standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.

Exceptional Efficiency Through Technology

        
  • The latest operator oriented User Interface (UI) has been designed to maximize uptime by allowing operators to easily reorder work tool lists and quickly create new work tool combinations. It also eliminates the need to measure up again when changing Cat® work tool attachments and makes it manageable for a single person to check and adjust for bucket wear.
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  • Cat® Lift Assist helps avoid machine tipping. With visual and auditory alerts, operators will know if their load is within the excavator’s safe working range limits.
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  • Cat® 2D E-Fence restricts the front linkage from moving beyond operator-defined preset boundaries for the ceiling, floor, wall, swing, and cab.  It helps operators avoid jobsite hazards such as traffic, keeps personnel safe, and helps you save on costly repairs, equipment downtime, and potential jobsite fines.
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  • Cat® Detect - People Detection for excavators is an intelligent vision camera system that can alert an operator when someone enters a machine’s hazard zone.*
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  • Cat® Grade with Assist helps operators stay on grade simply and effortlessly with semi-autonomous digging. It automates boom, stick, and bucket movements to deliver more accurate cuts with less effort.
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  • Cat® Grade with 2D for excavators is an indicate system that helps operators reach grade faster. Select your target depth and slope and watch the Grade with 2D system use on-board processors and sensors to provide real-time guidance on the distance to grade.
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  • Cat® Grade with 3D for excavators helps operators grade more quickly, accurately, and efficiently, improving productivity.* It incorporates GNSS technology and RTK positioning guidance to streamline the grading process for complex designs commonly encountered on large infrastructure and commercial projects. This system allows operators to work confidently, eliminating guesswork while cutting and filling to precise specifications.
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  • The Cat® Grade 3D Ready option includes all the hardware required for the Grade with 3D system, installed and tested from the factory. Activation requires the purchase of additional 3D software licenses, contact your Cat Dealer for details.
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  • Upgrade to our dual antenna GNSS for maximum grading efficiency. The system lets you create and edit designs on the touchscreen monitor while you’re on the job, or you can have the plan design sent to the excavator to make your work easier. Plus, you get added benefits of avoidance zones, cut and fill mapping, lane guidance, and augmented reality along with advanced positioning capability.
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  • 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.
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  • Cat® Payload provides operators with on-the-go weighing to help them hit load targets and avoid overloading, underloading, or misloading materials. Advanced Payload is a system upgrade that offers expanded features and capabilities, including custom tags, daily totals, and electronic ticketing. Combine Payload with VisionLink™**  to analyze jobsites and individual assets for remote management of production targets and key metrics.
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  • Cat® Operator Coaching allows operators of all experience levels to take their efficiency and productivity to the next level. With tips and data at their fingertips, operators can track and improve their productivity through everyday work on the job site. Gain data-based insights towards operators and operations when you pair Operator Coaching with VisionLink™.** There are two coaching tip categories –     
              
    1. Operational Efficiency Tips: Help operators stay at the top of their game by identifying areas to increase skill and efficiency, such as digging technique and idle times.
      2.         
    2. Machine Health Tips: Some actions are inefficient and cause unnecessary wear and tear on the machine and its components. Following Machine Health Tips can help extend the life of the machine, improve digging technique, and reduce fuel waste.
      3.     
        
*The system may not detect personnel in certain circumstances, such as fast swing speeds, people lying down or crouching, or when cameras are impaired by low light conditions (dusk, dawn, overcast), inclement weather (snow, rain, fog), or other similar conditions. For limitations of use, refer to the operation and maintenance manual.
** VisionLink™ subscription required. Availability may vary by region, consult your Cat Dealer for more details.
NOTE: Cat® Payload for excavators is not legal for trade.

Availability may vary by region, consult your Cat Dealer for more details.

Take The Guesswork Out of Managing Your Equipment

        
  • VisionLink™ provides actionable data insights for all assets – regardless of fleet size or equipment manufacturer.* Review equipment data from your desktop or mobile device to maximize uptime and optimize assets. Equipment management features provide up-to-date asset tracking of your entire fleet. You can track asset location, operating hours, fuel level, health issues, and overall utilization. Monitor equipment health with fault codes, fluid analysis, and inspection due dates. It's all about making informed, data-based decisions to help reduce operating costs. Productivity management features enable you to analyze overall job site performance. You'll be able to track tonnage moved, production targets, and payload, as well as Grade 3D and compaction data. These vital metrics help you to reduce costs and improve jobsite operational efficiency.
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  • Cat® Inspect is a mobile application that allows you to easily perform digital preventative maintenance (PM) checks, inspections, and daily walkarounds. Inspections can easily be integrated with other Cat data systems like VisionLink™ so you can keep a close eye on your fleet.
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  • Cat® Remote Troubleshoot is a mobile application that allows your Cat dealer to perform diagnostic testing on your connected machine remotely to help ensure that issues are resolved quickly and with less downtime.
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  • Cat® Remote Flash is a mobile application that allows you to update onboard software without a technician being present, allowing you to initiate software updates when convenient, increasing your overall operating efficiency.
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  • The Cat® PL161 attachment locator allows you to track attachments across all worksites, reduce the number of lost attachments, and plan for attachment maintenance and replacement. The work tool recognition** feature automatically adjusts machine settings based on the selected tool.

* Data field availability can vary by equipment manufacturer.
** Recognition feature available on select excavator models. Consult your Cat dealer for details.

Easy and Economical Maintenance

        
  • The 340’s extended and synchronized service intervals and reduced hydraulic oil capacity help you save time and money.
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  • The excavator is auto-lube ready with built-in mounting points; an available auto-lube retrofit kit provides additional hardware to mount a grease pump and line guards – all to help do the job of lubing safer, cleaner, and trouble-free.
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  • Boost productivity with proactive service reminders. The Integrated Vehicle Health Management system alerts the operator with step-by-step service guidance and parts needed so you don't experience unnecessary downtime.
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  • Track your excavator’s filter life and maintenance intervals via the in-cab monitor.
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  • Fuel and engine oil filters are accessible from the upper platform and synchronized to be changed at 1,000 hours.
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  • The latest hydraulic oil filter provides high-quality filtration performance and features anti-drain valves to keep oil clean when the filter is replaced, and the 3,000-hour extended replacement interval offers efficiency and convenience.    
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  • Scheduled Oil Sampling (S·O·SSM) ports with extended sampling intervals are on ground level, simplifying maintenance and allowing for quick, easy extraction of samples for fluid analysis.
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  • Using Cat® genuine oil and filters and doing typical S∙O∙S monitoring will extend the current service interval, giving you more uptime.
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  • The high-efficiency hydraulic fan has a programmable automatic reverse function to keep cores free from debris, eliminating the need for any operator interaction.
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  • The advanced air intake filter with pre-cleaner has a high dust-holding capacity.
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  • The latest engine air cleaners with an integrated pre-cleaner surpass radial seal air cleaners' lifespan.

Standard Equipment

NOTE
  • Standard and optional equipment may vary. Consult your Cat dealer for details.
CAT TECHNOLOGY
  • VisionLink™
  • Remote Flash
  • Remote Troubleshoot
  • Operator Coaching
  • Compatibility with radios and base stations from Trimble, Topcon, and Leica
ELECTRICAL SYSTEM
  • Maintenance-free 1,000 CCA batteries (x2)
  • Centralized electrical disconnect switch
  • LED exterior chassis and boom lights
ENGINE
  • Three selectable modes: Power, Smart, Eco
  • Auto engine speed control
  • -18°C (0°F) cold start capability
  • Double element air filter with integrated pre-cleaner
  • Remote disable
HYDRAULIC SYSTEM
  • Boom and stick regeneration circuit
  • Electronic main control valve
  • Auto hydraulic oil warmup
  • Bio hydraulic oil capability
  • Fine swing
SAFETY AND SECURITY
  • Auto hammer stop
  • Caterpillar One Key security system
  • Lockable external tool / storage box
  • Lockable door, fuel, and hydraulic tank locks
  • Lockable fuel drain compartment
SERVICE AND MAINTENANCE
  • Integrated vehicle health management system
  • Grouped location of engine oil & fuel filters
  • Scheduled Oil Sampling (S.O.S) ports
UNDERCARRIAGE AND STRUCTURES
  • Towing eye on base frame
  • Swivel guard
  • HD bottom guard
  • HD travel motor guards
  • Grease lubricated track
DELUXE CAB
  • High-resolution 203 mm (8") LCD touchscreen monitor
  • Auto bi-level air conditioner
  • Jog dial and shortcut keys for monitor control
  • Keyless push-to-start engine control
  • Height-adjustable console
ESSENTIAL CAB
  • High-resolution 203 mm (8") LCD touchscreen monitor
  • Auto bi-level air conditioner
  • Keyless push-to-start engine control
  • Air-suspension seat
  • Bluetooth radio with USB/Aux ports

Optional Equipment

NOTE

  • Standard and optional equipment may vary. Consult your Cat dealer for details.

BOOMS AND STICKS

  • 6.18m (20'3") Mass boom
  • 6.5 m (21'4") HD Reach boom
  • 2.55m (8'4") Mass stick
  • 2.8m (9'2") HD Reach stick
  • 3.2m (10'6") HD Reach stick

CAT TECHNOLOGY

  • VisionLink™ back office reporting
  • Cat Grade Connectivity
  • Cat Grade 2D with Attachment Ready Option (ARO)
  • Cat Grade with 3D (single or dual GNSS)
  • Cat Grade 3D Ready

ELECTRICAL SYSTEM

  • Maintenance-free 1,000 CCA batteries (x4)

ENGINE

  • Oil level sensor
  • Battery-operated engine heater
  • Cold start block heater
  • 52°C (126°F) high-ambient cooling
  • Hydraulic reverse fan

HYDRAULIC SYSTEM

  • Auto dig boost
  • Auto heavy lift
  • Single one-way circuit
  • Combined two-way circuit
  • Hydraulic efficiency monitoring

SAFETY AND SECURITY

  • Cat E-Fence
  • Swing alarm
  • Boom lowering check valve
  • Stick lowering check valve
  • Inspection lighting

UNDERCARRIAGE AND STRUCTURES

  • Full-length track guiding guards
  • Segmented two-piece track guiding guards
  • HD rollers
  • 600 mm (24") double grouser, triple grouser, HD triple grouser track shoes
  • 700mm (28") triple grouser track shoes

ESSENTIAL CAB

  • High-resolution 254 mm (10") LCD touchscreen monitor
  • Roller rear sunscreen

DELUXE CAB

  • High-resolution 254 mm (10") LCD touchscreen monitor
  • Cat Stick Steer
  • Auxiliary relay