335 Hydraulic Excavator

The Cat® 335 Excavator brings high performance with simple-to-use technologies to boost operator efficiencies up to 45%. Combine these features with a compact radius design, a new cab, longer maintenance intervals, and a power system that is more efficient, and you have a low cost-per-unit of production excavator.


Net Power - ISO 9249 273HP
Engine Model C7.1
Engine Power - ISO 14396 275HP
Bore 4in
Stroke 5in
Displacement 428in³


Operating Weight 77000lb

Working Ranges & Forces

Maximum Digging Depth 22.11ft
Boom Reach 6.15 m (20'2")
Stick R3.2CB2 (10'6")
Bucket GD 1.54 m³ (2.01 yd³)
Maximum Reach at Ground Level 34.11ft
Maximum Cutting Height 36.7ft
Maximum Loading Height 26.1ft
Minimum Loading Height 9.7ft
Maximum Depth Cut for 2440 mm (8 ft) Level Bottom 22.5ft
Maximum Vertical Wall Digging Depth 19ft
Bucket Digging Force - ISO 46482lbf
Stick Digging Force - ISO 32319lbf

Hydraulic System

Main System - Maximum Flow 560 l/min (148 gal/min)
Maximum Pressure - Equipment 5075psi
Maximum Pressure - Travel 5075psi
Maximum Pressure - Swing 4181psi

Swing Mechanism

Swing Speed 10.8r/min
Maximum Swing Torque 79455ft·lbf

Service Refill Capacities

Fuel Tank Capacity 97.2gal (US)
Cooling System 3.3gal (US)
Engine Oil 6.6gal (US)
Swing Drive - Each 2.9gal (US)
Final Drive - Each 1.8gal (US)
Hydraulic System - Including Tank 92.5gal (US)
Hydraulic Tank 40.7gal (US)
DEF Tank 7gal (US)


Boom Reach 6.15 m (20'2")
Stick R3.2CB2 (10'6")
Bucket GD 1.54 m³ (2.01 yd³)
Shipping Height - Top of Cab 10.9ft
Handrail Height 11.3ft
Shipping Length 32.2ft
Tail Swing Radius 6.3ft
Counterweight Clearance 3.1ft
Ground Clearance 1.7ft
Track Length 18.1ft
Length to Center of Rollers 13.3ft
Track Gauge 9ft
Transport Width 10.11ft

Standard Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cat Technology
    • Cat Product Link
    • Cat Grade with 2D
    • Cast Assist Technology
    • Cat Payload
    • 2D E-Fence
    • Work tool recognition
    • Work tool tracking
    • Auto hammer stop
    • Remote Services Capability
  • Engine
    • Three selectable modes: Power, Smart, Eco
    • 4600 m (15,090 ft) altitude capability with engine power derate above 3000 m (9,840 ft)
    • 52°C (126° F) high-ambient cooling capacity with derate
    • -18°C (0° F) cold start capability
    • Sealed double element air filter with integrated precleaner
    • 1 x 145 Amp. dual alternator
    • Electric fuel priming pump
    • Hydraulic and reversible demand fan
    • Two-stage fuel filtration system with water separator and indicator
    • Biodiesel capable (up to B20)
  • Service And Maintenance
    • Sampling ports for Scheduled Oil Sampling (S.O.S)
    • Grouped location for engine oil and fuel filter
  • Safety And Security
    • Rear- and right-side-view cameras
    • ISO 2867 right-hand handrail and hand hold
    • Service platform with anti-skid plate and countersunk bolts
    • Hydraulic lockout lever neutralizes all controls
    • Hydraulic lockout lever neutralizes all controls
    • Signaling/warning horn
  • Hydraulic System
    • SmartBoom (available in Europe only)
    • Electric main control valve
    • Boom and stick regeneration circuits
    • Auto hydraulic oil warm up
    • Auto two-speed travel
    • Boom and stick drift reduction valve
    • High flow 2-way tool control
    • Element type main hydraulic filter
  • Undercarriage And Structures
    • Base frame with standard track rollers and HD carrier rollers
    • Grease lubricated track
    • ISO 15818 tie down points on base frame
    • Track guiding guard, segmented two pieces
    • HD travel motor guards
    • Swivel guard
  • Booms, Sticks And Linkages
    • Boom cylinders
    • 6.15 m (20'2") reach boom
    • Bucket linkage, CB2 family with lifting eye
  • Electrical System
    • Maintenance-free batteries
    • LED chassis light, left-hand/right-hand boom lights, cab lights -1800 lumens
    • Centralized electrical disconnect switch
    • Programmable time delay working lights after engine shutdown

Optional Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Cat Technology
    • Cat Grade with Advanced 2D
    • Cat Grade with 3D
  • Engine
    • -32° C (-25° F) cold start capability
  • Electrical System
    • Premium surround lighting package
  • Safety And Security
    • 360° visibility
  • Hydraulic System
    • Medium pressure pump and lines
    • High pressure tool control lines
    • Auto Heavy Lift
  • Undercarriage And Structures
    • Track guiding guard, full length
    • 5.0 mt (11,020 lb) counterweight (for use with blade only)
    • 7.7 mt (16,980 lb) counterweight (for use without blade only)
    • 600 mm (24") triple grouser track shoes
    • 850 mm (33") triple grouser track shoes
    • 3440 mm (11'3") blade
    • 3600 mm (11'10") blade
  • Booms, Sticks And Linkages
    • 3.2 m (10'6" in) Reach stick
    • 3.75 m (12'4" in) Reach stick
  • Operator Environment
    • Roll down sun screen
    • Control pattern changer
    • Cat Stick Steer