Description
The Cat® 303.5 CR Mini Excavator delivers power and performance in a compact size to help you work in a wide range of applications.
Features
-
Engine
- Net Power
- 23.6 hp
- Engine Model
- C1.7
- Net Power @ 2,200 rpm - U.S. EPA Tier 4 Final/EU Stage V - ISO 9249/EEC 80/1269
- 23.6 hp
- Net Power - ISO 9249
- 24.7 hp
- Bore
- 3.3 in
- Stroke
- 3.9 in
- Displacement
- 104 in³
- 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.
-
Weights
-
Dimensions - Long Stick
-
Weight Increase from Minimum Configuration
-
Travel System
-
Sound
-
Hydraulic System
-
Swing System
-
Dimensions - Standard Stick
-
Certification - Cab and Canopy
-
Service Refill Capacities
-
Blade
-
Sustainability
-
Air Conditioning System
-
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
- Automatic Engine Shutdown
- Automatic Two Speed Travel
- Automatic Two Speed Travel
- Fuel Water Separator
- Fuel Water Separator
- Power on Demand (not available in all regions)
- Power on Demand (not available in all regions)
- Variable Displacement Piston Pump
- Variable Displacement Piston Pump
- Load Sensing/Flow Sharing Hydraulics
- Load Sensing/Flow Sharing Hydraulics
Hydraulics
- Smart Tech Electronic Pump
- Accumulator
- Smart Tech Electronic Pump
- Automatic Swing Brake
- Accumulator
- Auxiliary Line Quick Disconnects
- Automatic Swing Brake
- One and Two Way Auxiliary Flow
- Auxiliary Hydraulic Lines
- Continuous Auxiliary Flow
- One and Two Way Auxiliary Flow
- Auxiliary Hydraulic Lines
- Continuous Auxiliary Flow
- Auxiliary Line Quick Disconnects
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
- Control Pattern Changer (optional in some regions)
- ROPS – ISO 12117-2:2008
- Adjustable Wrist Rests
- TOPS – ISO 12117:1997
- Washable Floor Mat
- Travel Pedals and Hand Levers
- Stick Steer Mode
- Machine Security
- Travel Cruise Control
- Machine Security – Standard Key with Pass Code
- Control Pattern Changer (optional in some regions)
- Fabric Suspension Seat (Cab only)
- Adjustable Wrist Rests
- Vinyl Suspension Seat (Canopy only)
- Washable Floor Mat
- Hydraulic Lockout – All Controls
- Travel Pedals and Hand Levers
- Retractable High Visibility Seat Belt (75 mm/3 in)
- Machine Security
- Coat Hook
- Machine Security – Standard Key with Pass Code
- Cup Holder
- Fabric Suspension Seat (Cab only)
- Storage Pocket
- Vinyl Suspension Seat (Canopy only)
- Skylight
- Hydraulic Lockout – All Controls
- Mounting Bosses for Front
- Retractable High Visibility Seat Belt (75 mm/3 in)
- Signaling/Warning Horn
- Coat Hook
- Interior Light (Cab only)
- Cup Holder
- Boom Light, Halogen (not available in all regions)
- Storage Pocket
- Utility Space for Mobile Phone
- Skylight
- Next Generation Color LCD Monitor (IP66)
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Hour Meter with Wake Up Switch
– Jog Dial (cab only) - Mounting Bosses for Front
- Signaling/Warning Horn
- Interior Light (Cab only)
- Boom Light, Halogen
- Utility Space for Mobile Phone
- Next Generation Color LCD Monitor (IP66)
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Hour Meter with Wake Up Switch
– Jog Dial (cab only)
Next Generation Advanced Monitor (Optional)
– Fuel Level and Coolant Temperature Gauges
– Maintenance and Machine Monitoring
– Performance and Machine Adjustments
– Numeric Security Code
– Multiple Languages
– Hour Meter with Wake Up Switch
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)
- Dozer Blade
- Dozer Blade Float
- Angle Blade
- Tie Downs on Track Frame
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)
- Certified Lifting Eye (optional in some regions)
- One Piece Boom (2400 mm/94.5 in)
- Standard Stick (1260 mm/49.6 in)
- Front Shovel Capable – Pin-On
- Thumb Ready (not available in all regions)
- Certified Lifting Eye (optional in some 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
- 12 Volt Power Socket
- 12 Volt Battery
- Software (machine and monitor)
- Maintenance Free Battery
- Signaling/Warning Horn
- 12 Volt Power Socket
-
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)
- Control Pattern Changer (optional in some regions)
- No Travel Pedals and Hand Levers
- No Travel Pedals and Hand Levers
- Machine Security – Push to Start with Key Fob/Pass Code
- Machine Security – Push to Start with Key Fob/Pass Code
- Vinyl Non-Suspension Seat (Canopy only)
- Vinyl Non-Suspension Seat (Canopy only)
- Seat Belt Reminder System
- LED Front Lights
- LED Front Lights
- LED Front and Rear Lights
- LED Front and Rear Lights
- LED Boom Light
- LED Boom Light
- Mirrors Left and Right
- Mirrors Left and Right
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
- Radio – Bluetooth®, Auxiliary, Microphone, USB (charging only) (Cab only)
- Next Generation Advanced Monitor
– Touch Screen
– Site Reference System
– High Definition Camera Capable (IP68 and IP69K)
– Numeric Security Code
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
- Front Shovel Capable – Hydraulic Coupler
- 2nd Auxiliary Hydraulic Lines
- 2nd Auxiliary Hydraulic Lines
- Boom Lowering Check Valve
- Attachments including Couplers, Thumbs, Buckets, Augers and Hammers
- Stick Lowering Check Valve
- Boom Lowering Check Valve (Standard in Europe)
- Hydraulic Quick Coupler Lines (not available in all regions)
- Stick Lowering Check Valve (Standard in Europe)
- Hydraulic Quick Coupler Lines (not available in all regions)
- Front Shovel Capable – Hydraulic Coupler
Electrical
- Battery Disconnect
- Product Link PL243 (regulations apply)
- Product Link PL243 (regulations apply)
- Product Link PLE643 (regulations apply)
- Product Link PLE643 (regulations apply)
- Travel Alarm (standard in some regions)
- Travel Alarm (standard in some regions)
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)
- Eco Drain
- Extra Counterweight (250 kg/551 lb)
- Water Jacket Heater
Explore the 303.5 Mini Hydraulic Excavator for Sale at Quinn Company
Compact, versatile, and fuel-efficient, the Cat 303.5 Mini Hydraulic Excavator is built to handle tight job sites without compromising performance. With easy-to-use controls, along with strong dig and lift performance, it’s the right machine for contractors needing a combination of compact size and robust power.
Performance & Productivity
The 303.5 offers strong digging depth, fast cycle times, and smooth hydraulics, enabling efficient trenching, backfilling, and site prep. A compact radius design allows operators to work effectively in tight spaces.
Operator Comfort & Technology
Operators benefit from a comfortable cab with excellent visibility, ergonomic controls, and reduced noise. Optional Cat technologies support improved accuracy and productivity, reducing time and costs on site.
Serviceability & Reability
Simplified maintenance with ground-level service points ensures less downtime and lower operating costs. Durable Cat components keep the machine working reliably in all conditions.
Applications & Use Cases
From utility work in Los Angeles neighborhoods to landscaping and construction across the Central Coast, the 303.5 excels in areas where larger equipment can’t fit.
Quinn Company Support
Quinn Company provides full support for your Cat 303.5 Mini Excavator, including service, parts, financing, and flexible rental options.
Request a quote or schedule a demo with Quinn Company to see how the Cat 303.5 Mini Excavator can benefit your projects.
Buy a 303.5 CR Mini Hydraulic Excavator Near You Today
This model is one of the many equipment options Quinn Company has in stock for your heavy equipment needs. Our knowledgeable team will help you find the right model suited for your work and deliver industry-leading support long after the sale. Take advantage of our offers and get the best solution for your business. Get a quote for a 303.5 CR Mini Hydraulic Excavator machine online or contact our professionals for more information about our equipment.
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