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303.5 CR Mini Excavators

The upgraded 303.5 CR delivers power and performance in a wide range of applications. Faster transient speeds, coupled with exclusive features like stick steer joystick travel get you moving quickly and comfortably so you can focus on the task at hand.

303.5 CR

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The Cat 303.5 CR Mini Excavator delivers high performance in an under 2-ton compact size machine for construction, landscaping and demolition jobs.

Net Power
23.6 hp
Operating Weight
9239 lb
Dig Depth
122.4 in
Engine Model
C1.7
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  • Specifications
  • Features
  • Standard Equipment

Specifications

Engine specifications
Net Power 17.6 kW
Engine Model C1.7
Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269 17.6 kW
Net Power - ISO 9249 18.4 kW
Bore 84 mm
Stroke 100 mm
Displacement 1.7 l
Emissions Meets U.S. EPA Tier 4 Final and EU Stage V emission standards.
Note Advertised power is tested per the specified standard in effect at the time of manufacture.
Note (1) Net power advertised is the power available at the flywheel when the engine is at the rated speed of 2,200 rpm and the engine is installed with the factory configured fan, air intake system, exhaust system and alternator with a minimum alternator load.

Features

ALL DAY COMFORT

  • Choose either a canopy or a sealed and pressurized cab which can be equipped with air conditioning, adjustable wrist rests, and a suspension seat option to help keep you working comfortably all day long.

EASY TO OPERATE

  • Controls are easy to use and the intuitive Next Generation LCD monitor provides easy to read machine information. An advanced touchscreen monitor can also be equipped.

STICK STEER TRAVEL MODE

  • Moving around the job site is even easier with the Cat Stick Steer option. Easily switch from traditional travel controls with levers and pedals to joystick controls to move the machine and to operate the blade. The benefit of less effort and improved control is in your hands!

BIG PERFORMANCE IN A COMPACT DESIGN

  • Strong lift and dig performance helps you get the job done faster. The compact radius design lets you access and work in the tightest areas. Dozer float allows for easy clean up.

SAFETY ON THE JOB SITE

  • Your safety is our top priority. The Cat mini excavator is designed to help keep you safe on the job. Courtesy work lights and a fluorescent retractable seat belt are just a couple of the safety features we’ve built into the machine.

Standard Equipment

ENGINE
  • Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
  • Cat C1.7 NA Engine (U.S. EPA Tier 4 Final/EU Stage V)
  • Automatic Engine Idle
  • Automatic Engine Idle
  • Automatic Engine Shutdown
HYDRAULICS
  • Smart Tech Electronic Pump
  • Accumulator
  • Smart Tech Electronic Pump
  • Automatic Swing Brake
  • Accumulator
OPERATOR ENVIRONMENT
  • Tilt-up Canopy or Tilt-Up Cab
  • Stick Steer Mode
  • Tilt-up Canopy or Tilt-Up Cab
  • Travel Cruise Control
  • Top Guard ISO 10262:1998 Level I
UNDERCARRIAGE
  • Rubber Belt (300 mm/11.8 in wide)
  • Dozer Blade
  • Dozer Blade Float
  • Tie Downs on Track Frame
  • Rubber Belt (300 mm/11.8 in wide)
BOOM, STICK AND LINKAGES
  • One Piece Boom (2400 mm/94.5 in)
  • Standard Stick (1260 mm/49.6 in)
  • Front Shovel Capable
  • Front Shovel Capable – Pin-On
  • Thumb Ready (not available in all regions)
GUARDING
  • ROPS – ISO 12117-2:2008
  • TOPS – ISO 12117:1997
  • Top Guard ISO 10262:1998 (Level I)
ELECTRICAL
  • 12 Volt Battery
  • Software (machine and monitor)
  • Maintenance Free Battery
  • Lock Out/Tag Out Battery Disconnect
  • Signaling/Warning Horn

Optional Equipment

OPERATOR ENVIRONMENT

  • Cab with Air Conditioning
  • Cab with Air Conditioning
  • Cab with Heater
  • Cab with Heater
  • Control Pattern Changer (optional in some regions)

UNDERCARRIAGE

  • Steel Track (300 mm/11.8 in wide)
  • Steel Track (300 mm/11.8 in wide)
  • Angle Blade

BOOM, STICK AND LINKAGES

  • Long Stick (1560 mm/61.4 in)
  • Long Stick (1560 mm/61.4 in)
  • Front Shovel Capable – Dual Lock Manual Coupler
  • Front Shovel Capable – Dual Lock Manual Coupler
  • Attachments including Couplers, Thumbs, Buckets, Augers and Hammers

ELECTRICAL

  • Battery Disconnect
  • Product Link PL243 (regulations apply)
  • Product Link PL243 (regulations apply)
  • Product Link PLE643 (regulations apply)
  • Product Link PLE643 (regulations apply)

GUARDING

  • Polycarbonate Half Height Front Guard (Canopy only)
  • Polycarbonate Front Guard (ISO 10262:1998 Level I and EN356 P5A)
  • Guard, Canopy
  • Guard, Mesh

OTHER

  • Bio Oil Capable
  • Eco Drain
  • Water Jacket Heater
  • Bio Oil Capable
  • Light Counterweight (100 kg/221 lb)