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Cat® 340 Hydraulic Excavator
Exterior View
Interior View

Cat® 340 Hydraulic Excavator

Net Power – ISO 9249346 hp
Net Power – ISO 9249 (DIN)351 hp (metric)
Engine ModelCat C9.3B
Engine Power – ISO 14396347 hp
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Learn more about our Cat® 340 Hydraulic Excavator

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.

Net Power - ISO 9249
346hp
Net Power - ISO 9249 (DIN)
351hp (metric)
Engine Model
Cat C9.3B
Engine Power - ISO 14396
347hp
Engine Power - ISO 14396 (DIN)
352hp (metric)
Bore
5in
Stroke
6in
Displacement
568in³
Biodiesel Capability
Up to B20¹
Emissions
Meets U.S. EPA Tier 4 Final, EU Stage V, and Japan 2014 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) and are compatible* with ULSD blended with the following lower-carbon intensity fuels** up to: 20% biodiesel FAME (fatty acid methyl ester)*** 100%
Operating Weight
83100lb
Maximum Digging Depth
26.9ft
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
38.6ft
Maximum Cutting Height
35.3ft
Maximum Loading Height
24.5ft
Minimum Loading Height
6.2ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom
26.5ft
Maximum Vertical Wall Digging Depth
21.1ft
Bucket Digging Force - ISO
47190lbf·ft
Stick Digging Force - ISO
32480lbf·ft
Main System - Maximum Flow
148gpm
Maximum Pressure - Equipment
5076psi
Maximum Pressure - Equipment - Lift Mode
5511psi
Maximum Pressure - Travel
5076psi
Maximum Pressure - Swing
4264psi
Maximum Swing Torque
105214lbf·ft
Note (1)
*For CE-marked machine default value may be set lower
Fuel Tank Capacity
158.5gal (US)
Cooling System
10.5gal (US)
Engine Oil
8.5gal (US)
Swing Drive - Each
4.8gal (US)
Final Drive - Each
2.1gal (US)
Hydraulic System - Including Tank
98.5gal (US)
Hydraulic Tank
42.5gal (US)
DEF Tank
21.1gal (US)
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
10.5ft
Handrail Height
10.5ft
Shipping Length
36.8ft
Tail Swing Radius
11.7ft
Counterweight Clearance
4.2ft
Ground Clearance
1.8ft
Track Length
16.6ft
Track Length to Center of Rollers
13.3ft
Track Gauge
9ft
Transport Width - 850 mm (33”) Shoes
11.9ft
Air Conditioning
The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R134a or R1234yf. See the label or instruction manual for identification of the gas. If equipped with R134a (Global Warming Potential = 1430), the system conta
Standard and optional equipment may vary. Consult your Cat dealer for details.
VisionLink™
Remote Flash
Remote Troubleshoot
Operator Coaching
Compatibility with radios and base stations from Trimble, Topcon, and Leica
Capability with 3D grade systems from Trimble, Topcon, and Leica
Cat Grade with 2D
Cat Assist (Grade, Boom, Bucket, Swing, Lift)
Cat Payload (On-the-go weighing, Semiautomatic calibration, Payload/cycle information, USB Reporting Capability)
Work tool recognition and tracking (Requires PL161 attachment locator on work tool and Bluetooth receiver on machine)
Work tool recognition (PL161)
Work tool tracking (PL161)
Maintenance-free 1,000 CCA batteries (x2)
Centralized electrical disconnect switch
LED exterior chassis and boom lights
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
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
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
Integrated vehicle health management system
Grouped location of engine oil & fuel filters
Sampling ports for Scheduled Oil Sampling (S·O·S℠)
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
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
Beacon ready
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
Standard and optional equipment may vary. Consult your Cat dealer for details.
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
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
GNSS antennae
Laser catcher
Cat Tilt Rotator (TRS) Integration
Operator Coaching
Advanced Payload (Daily totals, Custom lists, Smart weight target, E-ticket Integration)
Maintenance-free 1,000 CCA batteries (x4)
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
Single one-way circuit
Combined two-way circuit
Hydraulic efficiency monitoring
Cat Detect - People Detection
Cat Command remote control
Swing alarm
Boom lowering check valve
Stick lowering check valve
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
High-resolution 254 mm (10") LCD touchscreen monitor
Roller rear sunscreen
Cat Stick Steer
Auxiliary relay
One-piece front windshield
Cat Stick Steer
Auxiliary relay

P232 Secondary Pulverizer

MP332 Universal Jaw

MP332 Tank Shear

MP324 Shear Jaw

MP324 Pulverizer Jaw

MP332 Demolition Jaw

MP332 Concrete Cutter Jaw

H180 S Hammer

H160 S Hammer

H140 S Hammer

H180 GC S Hammer

H160 GC S Hammer

CVP110
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