345 GC

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The Cat 345 GC is a reliable, low-cost-per-hour excavator. It's up to 25 percent more fuel efficient with up to 30 percent less maintenance cost than its comparative model*. Add in a quiet and comfortable ROPS cab, easy-to-use controls, and several Cat attachment options and you have a fine machine capable of meeting your various job requirements. *Compared to 349D2 Tier 3


Engine Model C9.3 C9.3 Less
Net Flywheel Power 346.0 HP 258.0 kW Less
Gross Power - ISO 14396 347.0 HP 259.0 kW Less
Net Power - ISO 9249/SAE J1349 346.0 HP 258.0 kW Less
Engine RPM - Operation 1750.0 r/min 1750.0 r/min Less
Engine RPM - Travel 1900.0 r/min 1900.0 r/min Less
Bore 5.0 in 115.0 mm Less
Stroke 6.0 in 149.0 mm Less
Displacement 568.0 in³ 9.3 l Less

Hydraulic System

Main System - Maximum Flow - Implement 166.0 gal/min 630.0 l/min Less
Maximum Pressure - Equipment - Implement 5076.0 psi 35000.0 kPa Less
Maximum Pressure - Travel 5076.0 psi 35000.0 kPa Less
Maximum Pressure - Swing 4061.0 psi 28000.0 kPa Less


Operating Weight 93000.0 lb 42200.0 kg Less
Operating Weight Reach boom, R2.9TB (9'6"") stick, HD 2.41 m3 (3.15 yd3) bucket, 600 mm (24"") double grouser shoes, 9 mt (19,842 lb) counterweight. Reach boom, R2.9TB (9'6"") stick, HD 2.41 m3 (3.15 yd3) bucket, 600 mm (24"") double grouser shoes, 9 mt (19,842 lb) counterweight. Less

Swing Mechanism

Swing Speed 8.27 r/min 8.27 r/min Less
Maximum Swing Torque 114543.0 ft·lbf 155.0 kN·m Less

Service Refill Capacities

Fuel Tank Capacity 158.5 gal (US) 600.0 l Less
Cooling System 10.5 gal (US) 40.0 l Less
Engine Oil - With Filter 8.5 gal (US) 32.0 l Less
Swing Drive 4.8 gal (US) 18.0 l Less
Final Drive - Each 2.1 gal (US) 8.0 l Less
Hydraulic System - Including Tank 111.7 gal (US) 423.0 l Less
Hydraulic Tank - Including Suction Pipe 49.1 gal (US) 186.0 l Less

Air Conditioning System

Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1430 metric tonnes. The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1430). The system contains 1.0 kg of refrigerant which has a CO2 equivalent of 1430 metric tonnes. Less


Boom Reach Boom 6.9m (22.8"") Reach Boom 6.9m (22.8"") Less
Stick R2.9TB (9'6"") R2.9TB (9'6"") Less
Bucket HD 2.41 m3 (3.15 yd3) HD 2.41 m3 (3.15 yd3) Less
Shipping Height - Top of Cab 10.6 ft 3230.0 mm Less
Handrail Height 11.1 ft 3370.0 mm Less
Shipping Length 38.1 ft 11620.0 mm Less
Tail Swing Radius 11.6 ft 3530.0 mm Less
Counterweight Clearance 4.3 ft 1300.0 mm Less
Ground Clearance 1.7 ft 520.0 mm Less
Track Length to Center of Rollers 13.3 ft 4040.0 mm Less
Track Gauge 9.0 ft 2740.0 mm Less
Transport Width - 600 mm (24”) Shoes 11.0 ft 3340.0 mm Less

Working Ranges & Forces

Boom Reach Boom 6.9m (22.8"") Reach Boom 6.9m (22.8"") Less
Stick R2.9TB (9'6"") R2.9TB (9'6"") Less
Bucket HD 2.41 m3 (3.15 yd3) HD 2.41 m3 (3.15 yd3) Less
Maximum Digging Depth 23.6 ft 7200.0 mm Less
Maximum Reach at Ground Level 37.0 ft 11290.0 mm Less
Maximum Cutting Height 34.6 ft 10540.0 mm Less
Maximum Loading Height 23.7 ft 7210.0 mm Less
Minimum Loading Height 10.3 ft 3130.0 mm Less
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 23.0 ft 7040.0 mm Less
Maximum Vertical Wall Digging Depth 17.7 ft 5390.0 mm Less
Bucket Digging Force - SAE 45650.0 lbf 203.0 kN Less
Bucket Digging Force - ISO 52860.0 lbf 235.0 kN Less
Stick Digging Force - SAE 42790.0 lbf 190.0 kN Less
Stick Digging Force - ISO 44550.0 lbf 198.0 kN Less

  • Get up to 25 percent more fuel efficiency than the 349D2 Tier 3 excavator in similar applications.
  • The C9.3B engine can run on biodiesel fuel up to B20 and meets China Nonroad Stage III emissions standards, equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
  • Match the excavator to the job with two power modes. Smart mode automatically matches engine and hydraulic power to digging conditions, providing max power when needed and reducing power when it isn’t to help save fuel.
  • The advanced hydraulic system provides the optimum balance of power and efficiency while giving you the control you need for precise digging requirements.
  • Valve priority puts hydraulic pressure and flow where you command it to go for fast light- to medium-load cycle times.
  • New self-sharpening Advansys bucket tips increase production and lower costs with longer tip life.
  • Add auxiliary hydraulics to do more work with various Cat attachments.
  • Product Link™ comes standard so you can remotely monitor machine health, location, hours, and fuel consumption on demand through the VisionLink® online interface.

Reliable, High and Low, Heat and Cold

  • Work up to 2300 m (7,550 ft) above sea level without de-rating.
  • Standard high-ambient temperature capability is 52° C (125° F) with cold start capability at –18° C (0° F).
  • Automatic hydraulic oil warm up gets you to work faster in cold temperatures and helps prolong the life of components.
  • Three levels of filtration protect the engine from dirty diesel fuel.
  • Grease sealed between track pins and bushings reduces travel noise and prevents debris from entering to increase undercarriage life.
  • Standard built-in protection includes a heavy-duty bottom guard, travel motor guard, and swivel protection guard.
  • The sloped track frame prevents mud and debris accumulation, helping reduce risk of track damage.

Work in Comfort in the All-New Cab

  • The Comfort cab has a wide seat that adjusts for operators of all sizes.
  • Control the excavator comfortably with easy-to-reach controls all located in front of you.
  • Standard automatic climate control keeps you at the right temperature all shift long.
  • Advanced viscous mounts reduce cab vibration by up to 50 percent over previous excavator models.
  • Stow your gear with plenty of in-cab storage beneath and behind the seat, overhead, and in the consoles. A cup holder, document holder, bottle holder, and coat hook are also provided.
  • Use the standard radio’s USB ports and Bluetooth® technology to connect to personal devices.

Simple To Operate

  • Start the engine with a push button; use a Bluetooth key fob, smartphone app, or Operator ID passcode.
  • Program your power mode and joystick preferences using Operator ID; the excavator will remember them every time you go to work.
  • Navigate quickly on the standard high-resolution 203 mm (8 inch) touchscreen monitor or with the aid of the jog dial control.
  • 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.


  • Expect up to 30 percent less maintenance cost than the 349D2 Tier 3 excavator due to extended and synchronized service intervals and smaller fluid quantities. (Savings calculated over 12,000 machine hours.)
  • Check hydraulic system oil and easily drain fuel system water from ground level.
  • Track your excavator’s filter life and maintenance intervals via the in-cab monitor.
  • Change all fuel filters at a synchronized 1,000 hours. Oil and fuel filters are grouped and located on right-hand side of machine for easy maintenance.
  • The new air intake filter with precleaner has double the dirt holding capacity of the previous air intake filter.
  • 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 3,000 hour replacement interval – 50 percent longer than previous filter designs.
  • S·O·SSM ports are on ground level, simplifying maintenance and allowing for quick, easy extraction of fluid samples for analysis.


  • Keep your excavator secure with Operator ID. Use your PIN code on the monitor to enable the push button starting feature.
  • The standard ROPS cab meets ISO 12117-2:2008 requirements.
  • A travel direction indicator helps operators know which way to activate the travel levers.
  • A ground-level shut-off switch stops all fuel to the engine when activated and shuts down the machine.
  • Enjoy great visibility into the trench, in each swing direction, and behind you with the help of smaller cab posts and larger windows.
  • Serrated steps and anti-skid plate on the service platform help prevent slipping.
  • A rearview camera is standard.

345 GC Standard Equipment

  • ROPS, standard sound suppression
  • High-resolution 203 mm (8") LCD touch screen monitor
  • Mechanically adjustable seat

  • Two selectable modes: Power, Smart
  • One-touch low idle with automatic engine speed control
  • 2300m (7,550 ft) altitude capability with no engine power de-rating
  • 52°C (126°F) high-ambient cooling capacity 
  • -18°C (0°F) cold start capability
  • Double element air filter with integrated pre- cleaner
  • Remote disable
  • Biodiesel capability up to B20

  • Boom and stick regeneration circuit
  • Electronic main control valve
  • Automatic hydraulic oil warm up
  • Reverse swing damping valve
  • Automatic swing parking brake
  • High performance hydraulic return filter
  • Two speed travel
  • Bio hydraulic oil capability

  • Towing eye on baseframe (ISO 15818 Compliant)
  • 9 mt (19, 842 lb) counterweight

  • Maintenance-free 1000 CCA batteries (x2)
  • Centralized electrical disconnect switch
  • LED chassis light, RH and LH boom lights, cab lights

  • Cat Product Link

  • Grouped location of engine oil & fuel filters
  • Scheduled Oil Sampling (S.O.S) sampling ports

  • Caterpillar One Key security system
  • Lockable external tool / storage box
  • Lockable door, fuel, and hydraulic tank locks
  • Lockable fuel drain compartment
  • Service platform with anti-skid plate & recessed bolts
  • RH handrail & hand hold (ISO 2867 Compliant)
  • Standard visibility mirror package
  • Signaling / warning horn
  • Ground-level secondary engine shutoff switch
  • Rearview camera and right-hand-side mirror

345 GC Optional Equipment

  • Cold start block heaters
  • -32°C (-25°F) cold start capability

  • Fine swing
  • Combined two-way auxiliary-circuit
  • Combined two-way auxiliary-circuit with hammer return filter

  • 600mm (24") triple grouser track shoes
  • 600mm (24") HD triple grouser track shoes
  • 600mm (24") double grouser track shoes
  • 700mm (28") triple grouser track shoes

  • 6.9m (22'8") Reach boom
  • 6.55 (21'6") Mass boom
  • 2.9m (9'6") Reach stick
  • 3.35m (11') Reach stick
  • 2.55 (8'4") Mass stick
  • 3.0m (9'10") Mass stick

  • Electric refueling pump with automatic shutoff