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 HD 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 4175psi

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 HD 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


Recyclability 98%

Standard Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Boom And Sticks
    • 6.15 m (20'2") Reach boom
  • Cab
    • Rollover protective structure (ROPS)
    • Air-adjustable seat with heat (Deluxe only)
    • Auto-adjustable seat with heat and air ventilation (Premium only)
    • High-resolution 254 mm (10 inch) LCD touchscreen monitor
  • Cat Technology
    • Cat Product Link
    • Remote Flash
    • Remote Troubleshoot
    • Cat Grade with 2D
    • Cat Assist
    • Cat Payload
    • 2D E-Fence
  • 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
  • Engine
    • Cat C7.1 twin turbo diesel engine
    • Three selectable modes: Power, Smart, Eco
    • 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
  • Hydraulic System
    • SmartBoom (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
    • Element type main hydraulic 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
    • Ground level-accessible secondary engine shutoff switch in cab
    • Signaling/warning horn
  • Service And Maintenance
    • Sampling ports for Scheduled Oil Sampling (S.O.S)
    • Grouped location for engine oil and fuel 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
    • Two-piece segmented track guiding guard

Optional Equipment

  • Note
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
  • Boom And Sticks
    • 3.2 m (10'6") Reach stick
    • 3.75 m (12'4") Reach stick
  • Cab
    • Cat Stick Steer
    • Auxiliary relay
  • Cat Technology
    • Cat Grade with Advanced 2D
    • Cat Grade with 3D single GNSS
    • Cat Grade with 3D dual GNSS
  • Engine
    • -32° C (-25° F) cold start capability
  • Safety And Security
    • Cat Detect - People Detection
    • 360° visibility
    • Swing alarm
    • Cat Command remote control
  • Service And Maintenance
    • Integrated vehicle health management system
  • Undercarriage And Structures
    • Full length track guiding guard
    • 5.0 mt (11,020 lb) counterweight
    • 7.7 mt (16,980 lb) counterweight
    • 600 mm (24") triple grouser track shoes
    • 700 mm (28") triple grouser track shoes
    • 850 mm (33") triple grouser track shoes
    • 3440 mm (11'3") blade
    • 3600 mm (11'10") blade