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.
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Engine
- Net Power - ISO 9249
- 346 hp
- Net Power - ISO 9249 (DIN)
- 351 hp (metric)
- Engine Model
- Cat C9.3B
- Engine Power - ISO 14396
- 347 hp
- Engine Power - ISO 14396 (DIN)
- 352 hp (metric)
- Bore
- 5 in
- Stroke
- 6 in
- Displacement
- 568 in³
- Biodiesel Capability
- Up to B20¹
- Emissions
- Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2,014 emission standards.
- 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
- Note (2)
- ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO
Weights
- Operating Weight
- 83,100 lb
Working Ranges & Forces
- Maximum Digging Depth
- 26.9 ft
- Boom
- Reach 6.5 m (21'4")
- Stick
- Reach 3.9 m (12'10")
- Bucket
- HD 2.36 m³ (3.08 yd³)
- Maximum Reach at Ground Level
- 38.6 ft
- Maximum Cutting Height
- 35.3 ft
- Maximum Loading Height
- 24.5 ft
- Minimum Loading Height
- 6.2 ft
- Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
- 26.5 ft
- Maximum Vertical Wall Digging Depth
- 21.1 ft
- Bucket Digging Force - ISO
- 47,190 lbf
- Stick Digging Force - ISO
- 32,480 lbf
Hydraulic System
- Main System - Maximum Flow
- 148 gal/min
- Maximum Pressure - Equipment
- 5,076 psi
- Maximum Pressure - Equipment - Lift Mode
- 5,511 psi
- Maximum Pressure - Travel
- 5,076 psi
- Maximum Pressure - Swing
- 4,264 psi
Swing Mechanism
- Swing Speed
- 8.84 r/min
- Maximum Swing Torque
- 105,214 ft·lbf
Service Refill Capacities
- Fuel Tank Capacity
- 158.5 gal (US)
- Cooling System
- 10.5 gal (US)
- Engine Oil
- 8.5 gal (US)
- Swing Drive - Each
- 4.8 gal (US)
- Final Drive - Each
- 2.1 gal (US)
- Hydraulic System - Including Tank
- 98.5 gal (US)
- Hydraulic Tank
- 42.5 gal (US)
- DEF Tank
- 21.1 gal (US)
Dimensions
- Boom
- Reach 6.5 m (21'4")
- Stick
- Reach 3.9 m (12'10")
- Bucket
- HD 2.36 m³ (3.08 yd³)
- Shipping Height - Top of Cab
- 10.5 ft
- Handrail Height
- 10.5 ft
- Shipping Length
- 36.8 ft
- Tail Swing Radius
- 11.7 ft
- Counterweight Clearance
- 4.2 ft
- Ground Clearance
- 1.8 ft
- Track Length
- 16.6 ft
- Track Length to Center of Rollers
- 13.3 ft
- Track Gauge
- 9 ft
- Transport Width - 850 mm (33”) Shoes
- 11.9 ft
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1,430). The system contains 1.00 kg of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes.
Standard Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- Cat Technology
-
- VisionLink®
- Remote Flash
- Remote Troubleshoot
- Compatibility with radios and base stations from Trimble, Topcon, and Leica
- Capability to install 3D grade systems from Trimble, Topcon, and Leica
- Cat Grade 2D
- Cat Assist
- Cat Payload
- Auto hammer stop
- Work tool recognition (PL161)
- Work tool tracking (PL161)
-
- 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 heavy lift
- Auto dig boost
- Auto hydraulic oil warmup
- Bio hydraulic oil capability
- Fine swing
- Reverse swing damping valve
- Auto swing parking brake
- High performance hydraulic return filter
- Two speed travel
-
- Safety And Security
-
- Cat E-Fence
- Caterpillar One Key security system
- Lockable external tool / storage box
- Lockable door, fuel, and hydraulic tank locks
- Lockable fuel drain compartment
- Lockable disconnect switch
- Service platform with anti-skid plate & recessed bolts
- RH handrail and handhold
- Signaling / warning horn
- Ground-level secondary engine shutoff switch
- Rearview camera
- Inspection Lighting
-
- Service And Maintenance
-
- Integrated vehicle health management system
- Grouped location of engine oil & fuel filters
- Sampling ports for Scheduled Oil Sampling (S·O·S℠)
-
- Undercarriage And Structures
-
- Towing eye on base frame
- Swivel guard
- HD bottom guard
- HD travel motor guards
- Grease lubricated track
- HD swing frame
- HD swing bearing
- 7.56 mt (16,667 lb) counterweight
-
- 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
- Tilt-up left-side console
- Heated air-suspension seat
- Monitor integrated Bluetooth radio with USB/Aux ports
- 12V DC outlets
- Document storage
- Overhead storage and rear storage with nets
- Beverage holder
- Cup holder
- Openable two-piece front window
- Rear window emergency exit
- Radial wiper with washer
- Openable polycarbonate skylight hatch
- LED dome light
- Floor welcome light
- Roof sunscreen
- Roller front sunscreen
- Washable floor mat
- Beacon ready
-
- Premium Cab
-
- High-resolution 254 mm (10") 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
- Tilt-up left-side console
- Heated and ventilated air-suspension seat
- Monitor integrated Bluetooth radio with USB/Aux ports
- 12V DC outlets
- Document storage
- Overhead storage and rear storage with nets
- Beverage holder
- Cup holder
- Openable two-piece front window
- Rear window emergency exit
- Parallel wiper
- Openable polycarbonate skylight hatch
- LED dome light
- Floor welcome light
- Roof sunscreen
- Roller front sunscreen
- Washable floor mat
- Beacon ready
Optional Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- Booms And Sticks
-
- 6.18 m (20'3") Mass boom
- 6.5 m (21'4") HD Reach boom
- 2.55 m (8'4") Mass stick
- 2.8 m (9'2") HD Reach stick
- 3.2 m (10'6") HD Reach stick
- 3.9 m (12'10") HD Reach stick
- TB family bucket linkage with/without lifting eye
- DB family bucket linkage with/without lifting eye
-
- Cat Technology
-
- Cat Grade Connectivity
- Cat Grade 2D with Attachment Ready Option (ARO)
- Cat Grade with 3D single GNSS
- Cat Grade with 3D dual GNSS
- Cat Tilt Rotator (TRS) Integration
- Operator Coaching
-
- 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
- -32°C (-25°F) cold start capability
-
- Hydraulic System
-
- Single one-way circuit
- Combined two-way circuit
- Hydraulic efficiency monitoring
-
- Safety And Security
-
- Cat Detect - People Detection
- Cat Command remote control
- Swing alarm
- Boom lowering check valve
- Stick lowering check valve
-
- 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
- 700 mm (28") triple grouser track shoes
- 800 mm (31") triple grouser track shoes
- 850 mm (33") triple grouser track shoes
-
- Deluxe Cab
-
- High-resolution 254 mm (10") LCD touchscreen monitor
- Roller rear sunscreen
- Cat Stick Steer
- Auxiliary relay
-
- Premium Cab
-
- One-piece front windshield
- Cat Stick Steer
- Auxiliary relay
Specifications
Engine
- Net Power - ISO 9249
- 346 hp
- Net Power - ISO 9249 (DIN)
- 351 hp (metric)
- Engine Model
- Cat C9.3B
- Engine Power - ISO 14396
- 347 hp
- Engine Power - ISO 14396 (DIN)
- 352 hp (metric)
- Bore
- 5 in
- Stroke
- 6 in
- Displacement
- 568 in³
- Biodiesel Capability
- Up to B20¹
- Emissions
- Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2,014 emission standards.
- 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
- Note (2)
- ¹Cat diesel engines are required to use ULSD (ultra-low sulfur diesel fuel with 15 ppm of sulfur or less) or ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)* or 100% renewable diesel, HVO
Weights
- Operating Weight
- 83,100 lb
Working Ranges & Forces
- Maximum Digging Depth
- 26.9 ft
- Boom
- Reach 6.5 m (21'4")
- Stick
- Reach 3.9 m (12'10")
- Bucket
- HD 2.36 m³ (3.08 yd³)
- Maximum Reach at Ground Level
- 38.6 ft
- Maximum Cutting Height
- 35.3 ft
- Maximum Loading Height
- 24.5 ft
- Minimum Loading Height
- 6.2 ft
- Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
- 26.5 ft
- Maximum Vertical Wall Digging Depth
- 21.1 ft
- Bucket Digging Force - ISO
- 47,190 lbf
- Stick Digging Force - ISO
- 32,480 lbf
Hydraulic System
- Main System - Maximum Flow
- 148 gal/min
- Maximum Pressure - Equipment
- 5,076 psi
- Maximum Pressure - Equipment - Lift Mode
- 5,511 psi
- Maximum Pressure - Travel
- 5,076 psi
- Maximum Pressure - Swing
- 4,264 psi
Swing Mechanism
- Swing Speed
- 8.84 r/min
- Maximum Swing Torque
- 105,214 ft·lbf
Service Refill Capacities
- Fuel Tank Capacity
- 158.5 gal (US)
- Cooling System
- 10.5 gal (US)
- Engine Oil
- 8.5 gal (US)
- Swing Drive - Each
- 4.8 gal (US)
- Final Drive - Each
- 2.1 gal (US)
- Hydraulic System - Including Tank
- 98.5 gal (US)
- Hydraulic Tank
- 42.5 gal (US)
- DEF Tank
- 21.1 gal (US)
Dimensions
- Boom
- Reach 6.5 m (21'4")
- Stick
- Reach 3.9 m (12'10")
- Bucket
- HD 2.36 m³ (3.08 yd³)
- Shipping Height - Top of Cab
- 10.5 ft
- Handrail Height
- 10.5 ft
- Shipping Length
- 36.8 ft
- Tail Swing Radius
- 11.7 ft
- Counterweight Clearance
- 4.2 ft
- Ground Clearance
- 1.8 ft
- Track Length
- 16.6 ft
- Track Length to Center of Rollers
- 13.3 ft
- Track Gauge
- 9 ft
- Transport Width - 850 mm (33”) Shoes
- 11.9 ft
Air Conditioning System
- Air Conditioning
- The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a (Global Warming Potential = 1,430). The system contains 1.00 kg of refrigerant, which has a CO2 equivalent of 1.430 metric tonnes.
Standard/Optional Features
Standard Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- Cat Technology
-
- VisionLink®
- Remote Flash
- Remote Troubleshoot
- Compatibility with radios and base stations from Trimble, Topcon, and Leica
- Capability to install 3D grade systems from Trimble, Topcon, and Leica
- Cat Grade 2D
- Cat Assist
- Cat Payload
- Auto hammer stop
- Work tool recognition (PL161)
- Work tool tracking (PL161)
-
- 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 heavy lift
- Auto dig boost
- Auto hydraulic oil warmup
- Bio hydraulic oil capability
- Fine swing
- Reverse swing damping valve
- Auto swing parking brake
- High performance hydraulic return filter
- Two speed travel
-
- Safety And Security
-
- Cat E-Fence
- Caterpillar One Key security system
- Lockable external tool / storage box
- Lockable door, fuel, and hydraulic tank locks
- Lockable fuel drain compartment
- Lockable disconnect switch
- Service platform with anti-skid plate & recessed bolts
- RH handrail and handhold
- Signaling / warning horn
- Ground-level secondary engine shutoff switch
- Rearview camera
- Inspection Lighting
-
- Service And Maintenance
-
- Integrated vehicle health management system
- Grouped location of engine oil & fuel filters
- Sampling ports for Scheduled Oil Sampling (S·O·S℠)
-
- Undercarriage And Structures
-
- Towing eye on base frame
- Swivel guard
- HD bottom guard
- HD travel motor guards
- Grease lubricated track
- HD swing frame
- HD swing bearing
- 7.56 mt (16,667 lb) counterweight
-
- 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
- Tilt-up left-side console
- Heated air-suspension seat
- Monitor integrated Bluetooth radio with USB/Aux ports
- 12V DC outlets
- Document storage
- Overhead storage and rear storage with nets
- Beverage holder
- Cup holder
- Openable two-piece front window
- Rear window emergency exit
- Radial wiper with washer
- Openable polycarbonate skylight hatch
- LED dome light
- Floor welcome light
- Roof sunscreen
- Roller front sunscreen
- Washable floor mat
- Beacon ready
-
- Premium Cab
-
- High-resolution 254 mm (10") 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
- Tilt-up left-side console
- Heated and ventilated air-suspension seat
- Monitor integrated Bluetooth radio with USB/Aux ports
- 12V DC outlets
- Document storage
- Overhead storage and rear storage with nets
- Beverage holder
- Cup holder
- Openable two-piece front window
- Rear window emergency exit
- Parallel wiper
- Openable polycarbonate skylight hatch
- LED dome light
- Floor welcome light
- Roof sunscreen
- Roller front sunscreen
- Washable floor mat
- Beacon ready
Optional Equipment:
-
- Note
-
- Standard and optional equipment may vary. Consult your Cat dealer for details.
-
- Booms And Sticks
-
- 6.18 m (20'3") Mass boom
- 6.5 m (21'4") HD Reach boom
- 2.55 m (8'4") Mass stick
- 2.8 m (9'2") HD Reach stick
- 3.2 m (10'6") HD Reach stick
- 3.9 m (12'10") HD Reach stick
- TB family bucket linkage with/without lifting eye
- DB family bucket linkage with/without lifting eye
-
- Cat Technology
-
- Cat Grade Connectivity
- Cat Grade 2D with Attachment Ready Option (ARO)
- Cat Grade with 3D single GNSS
- Cat Grade with 3D dual GNSS
- Cat Tilt Rotator (TRS) Integration
- Operator Coaching
-
- 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
- -32°C (-25°F) cold start capability
-
- Hydraulic System
-
- Single one-way circuit
- Combined two-way circuit
- Hydraulic efficiency monitoring
-
- Safety And Security
-
- Cat Detect - People Detection
- Cat Command remote control
- Swing alarm
- Boom lowering check valve
- Stick lowering check valve
-
- 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
- 700 mm (28") triple grouser track shoes
- 800 mm (31") triple grouser track shoes
- 850 mm (33") triple grouser track shoes
-
- Deluxe Cab
-
- High-resolution 254 mm (10") LCD touchscreen monitor
- Roller rear sunscreen
- Cat Stick Steer
- Auxiliary relay
-
- Premium Cab
-
- One-piece front windshield
- Cat Stick Steer
- Auxiliary relay