Caterpillar 308 CR Mini Excavator
Cat 308 CR mini excavator specs: 69 hp net power, 20,771 lb operating weight, 182.8 in dig depth, 44 gpm pump flow, 39 gal fuel tank, and Tier 4 Final / Stage V emissions.
Quick answer
Caterpillar 308 CR Mini Excavator Specs at a Glance
The Caterpillar 308 CR Mini Excavator is a 20,771 lb mini excavator rated at 69 net horsepower with a listed max dig depth of 15.23 ft. Use this page to check the core model specs, then confirm the exact serial range, blade or bucket, undercarriage, counterweight, hydraulic options, and emissions package before using the numbers for purchase, transport, or bid decisions.
Spec basis: 308 CR cab configuration reference. Minimum/maximum operating weight varies by rubber tracks, steel tracks with pads, counterweight, stick, blade, operator, fuel, and bucket.
Research Path
Next Steps for 308 CR
Key OEM Spec Summary
Fuel burn and hourly operating cost are Heavy Equipment Hub editorial estimates for planning. They are not OEM guaranteed values.
Complete OEM Technical Data Sheet
Verified OEM engine parameters, hydraulic pressure circuits, digging forces, and transport dimensions.
| Reference Name | Caterpillar 308 CR mini excavator product specifications |
| Primary OEM Reference | https://www.cat.com/en_US/products/new/equipment/excavators/mini-excavators/128360.html |
| Spec Configuration | 308 CR cab configuration reference. Minimum/maximum operating weight varies by rubber tracks, steel tracks with pads, counterweight, stick, blade, operator, fuel, and bucket. |
| Last Reviewed | September 2026 |
| Cost and Fuel Note | Fuel burn and hourly operating cost are Heavy Equipment Hub editorial estimates for planning. They are not OEM guaranteed values. |
| Engine Make & Model | Cat C2.8 Turbo |
| Net Power - ISO 9249 | 69 HP (51.2 kW) |
| Gross Power - ISO 14396 | 74.3 HP (55.4 kW) |
| Displacement | 171 cu in (2.8 L) |
| Emissions Note | Meets U.S. EPA Tier 4 Final and EU Stage V standards in the referenced configuration. |
| Operating Weight | 20,771 lbs (9,420 kg) |
| Minimum Operating Weight with Cab | 18,754 lbs (8,505 kg) |
| Fuel Tank Capacity | 39 gal (147 L) |
| Hydraulic System Capacity | 29 gal (110 L) |
| Hydraulic Tank Capacity | 14 gal (53 L) |
| Cooling System Capacity | 2.6 gal (10 L) |
| Pump Flow | 44 gpm (167 L/min) |
| Operating Pressure - Equipment | 4,134 psi (285 bar) |
| Operating Pressure - Travel | 4,134 psi (285 bar) |
| Primary Auxiliary Flow | 35 gpm (131 L/min) |
| Bucket Digging Force | 13,946 lbf (62 kN) |
| Stick Digging Force - Standard | 9,509 lbf (42.3 kN) |
| Dig Depth | 182.8 in (15.23 ft / 4,643 mm) |
| Maximum Reach - Ground Level | 293.7 in (7,460 mm) |
| Maximum Dig Height | 277.1 in (7,039 mm) |
| Maximum Dump Clearance | 199.7 in (5,072 mm) |
| Blade Width - Standard | 90.6 in (2,300 mm) |
| Blade Width - Wide | 96.5 in (2,450 mm) |
| Best Fit | Contractors who need strong compact-machine hydraulics, reduced tail swing, trailer-friendly planning, and attachment flexibility. |
| Verify Before Transport | Trailer capacity, bucket, coupler, counterweight, track type, blade width, and local towing rules can change whether the machine fits the intended transport setup. |
| Common Long-Tail Searches Answered | Cat 308 CR operating weight, Cat 308 CR horsepower, Cat 308 CR dig depth, Cat 308 CR hydraulic flow, Cat 308 CR fuel capacity, mini excavator specs. |
Machine Architecture & Operational Overview
The Caterpillar 308 CR sits at the upper end of the mini excavator class, making it useful for utility trenching, residential excavation, landscaping, tight-access earthmoving, and attachment work where transport weight and hydraulic flow matter. Because the 308 CR can vary by stick length, counterweight, track, blade, and regional engine configuration, verify the exact spec sheet before using the numbers for transport, trailer selection, or attachment matching. Fuel burn and hourly cost below are Heavy Equipment Hub editorial planning estimates, not OEM-guaranteed values.
Primary Jobsite Applications: Utility trenching, residential site work, landscaping, sidewalk repair, light demolition, drainage, grading, and compact attachment work
Buyer and Fleet Checklist
Before You Use These Specs
Transport Planning
Confirm weight, width, height, bucket or blade removal, counterweight, shoe width, tire package, permits, and trailer capacity against the actual machine configuration.
Attachment Matching
Check hydraulic flow, relief pressure, coupler style, case drain, return filtration, tool control, lifting limits, and dealer-approved attachment charts.
Cost Per Hour
Build the hourly rate from fuel, DEF, preventive maintenance, wear parts, tires or undercarriage, repairs, depreciation, finance cost, insurance, and utilization.
Spec Accuracy
Use the source link and configuration note as the starting point, then verify serial range and local-market literature before purchase, repair, hauling, or bid work.
Common Long-Tail Searches This Page Answers
What is the operating weight?
20,771 lb, depending on configuration.
How much horsepower does it have?
69 net hp for the listed engine configuration.
What is the maximum dig depth?
15.23 ft with the listed boom and stick setup.
What should be verified before use?
Serial prefix, attachment package, counterweight, track shoe width, emissions tier, and local dealer documentation.
Caterpillar 308 CR Mini Excavator FAQ
What is the operating weight of the Caterpillar 308 CR Mini Excavator?
The listed operating weight is 20,771 lb for the referenced configuration. Buckets, blades, couplers, thumbs, guards, counterweights, tires, track shoes, fuel level, and regional packages can change the final transport weight.
How much horsepower does the Caterpillar 308 CR Mini Excavator have?
The listed net horsepower is 69 hp. Confirm the exact engine rating standard, emissions package, and model year before using the value for bidding, rental comparison, or attachment sizing.
Is the fuel burn shown here an OEM guaranteed number?
No. The fuel burn and hourly cost values are Heavy Equipment Hub planning estimates. Real fuel use changes with load factor, idle time, operator habits, hydraulic demand, underfoot conditions, maintenance condition, and job cycle.
What should I verify before buying, renting, or transporting this machine?
Verify serial range, configuration, attachment package, fluid specifications, transport dimensions, tire or track setup, counterweight, emissions equipment, service history, and the latest OEM or dealer documentation.
Recommended OEM Filters & Fluid Maintenance Kits
Caterpillar 500-Hour Scheduled Maintenance Filter Kit
Official heavy duty hydraulic return filters, engine oil filters, fuel water separators, and SOS fluid sampling bottles.
Caterpillar 308 CR Mini Excavator Knowledge Base & Topic Cluster
Deep-dive technical guides attached to this master machine pillar.
Cat 308 CR 500-Hour Maintenance Checklist: Compact Radius, Blade, Tracks, Aux Hydraulics and Attachments
A Cat 308 CR 500-hour maintenance checklist for compact-radius excavator fleets covering tracks, blade, auxiliary hydraulics, filters, cooling airflow and attachment records.
Cat 308 CR Auxiliary Hydraulic Troubleshooting: Weak Thumb, Slow Tilt, Track Drift, Pump Noise and Heat
Cat 308 CR troubleshooting workflow for weak thumb, slow tilt, track drift, pump noise, hydraulic heat, blade drift, attachment flow and stop-work triggers.
Cat 308 CR Operating Cost Per Hour: Fuel Burn, Rubber Tracks, Attachments, Transport and Ownership
Cat 308 CR cost per hour guide using 2.7 gal/hr planning fuel burn, rubber tracks, buckets, attachments, trailer transport, maintenance, utilization and ownership.
Cat 308 CR vs Cat 320: Mini Excavator vs 20-Ton Excavator Specs, Transport, Fuel Burn and Job Fit
Compare Cat 308 CR vs Cat 320 by operating weight, horsepower, dig depth, hydraulic flow, fuel burn, transport, attachment fit and utility trenching productivity.
Cat 308 CR Seasonal Maintenance Guide: Winter Starts, Summer Cooling, Rubber Tracks, Blade and Storage
A Cat 308 CR seasonal maintenance guide for winter starts, summer cooling, rubber track care, blade checks, compact jobsite mud, attachments and storage.
Fleet Management Specs
Spec Verification
Core machine values are checked against the Caterpillar 308 CR mini excavator product specifications. Configuration-sensitive values should still be verified against the exact serial range and dealer spec sheet.
Primary OEM reference