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Cat 308E2 CR specifications

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Short answer

Cat 308E2 CR: full-size excavator.

Selected configuration figures
ConfigurationDocumented field and quantity
308E2 CR
Gross Power
66.6 hp
Operating Weight
18,519 lb
308E2 CR specification matrix — Undercarriage
Specification308E2 CR
Track Gauge6.53 ft
Drawbar Pull20,720 lb
Ground Pressure5.51 psi
Max Travel Speed3.42 mph
Swing System
Specification308E2 CR
Machine Swing Speed11 rpm
NoteAutomatic swing break, spring applied, hydraulic release
Boom Swing - Left60 degrees
Engine
Specification308E2 CR
Number Of Cylinders4
Engine ModelC3.3B
Gross Power66.6 hp
Net Power65 hp
Power Measured @2,400 rpm
Displacement203.2 cu in
AspirationTurbocharged
Bore3.7 in
Stroke4.7 in
EmissionsMeets US EPA Tier 4 Final and EU Stage IIIB emission standards
Net Power - ISO 924965 hp
Gross Power - ISO 1439666.6 hp
Rated Net Power - 2,400 Rpm - ISO 9249/Eec 80/126965 hp
Operational
Specification308E2 CR
Operating Weight18,519 lb
Fuel Capacity33 gal
Cooling System Fluid Capacity3.7 gal
Hydraulic System Fluid Capacity21.7 gal
Engine Oil Capacity3 gal
Swing Mechanism
Specification308E2 CR
Swing Speed11 rpm
Weights
Specification308E2 CR
Note (1)Weight with rubber tracks, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines
Note (2)Weight varies depending on machine configuration
Operating Weight - With Cab18,519 lb
Buckets
Specification308E2 CR
Minimum Bucket Capacity0.5 yd3
Maximum Bucket Capacity1.1 yd3
Blade
Specification308E2 CR
Blade Width7.7 ft
Blade Height17.8 in
Blade height17.7 in
Blade width7.7 ft
Lift Height15 in
Dig Depth14.2 in
Hydraulic System
Specification308E2 CR
NoteLoad sensing hydraulics with variable displacement piston pump
Operating Pressure - Swing3,481 psi
Operating Pressure - Equipment4,061 psi
Operating Pressure - Travel4,061 psi
Digging Force - Stick - Standard9,015 lb
Digging Force - Stick - Long7,891 lb
Digging Force - Bucket13,534 lb
Auxiliary Circuit - Secondary (174 Bar/2,524 Psi)16.9 gpm
Auxiliary Circuit - Primary (186 Bar/2,734 Psi)33.8 gpm
Pump Flow At 2,000 Rpm39.6 gpm
Operating Specifications
Specification308E2 CR
Machine Overhang11 in
Stick Length - Standard66 in
Stick Length - Long87 in
Maximum Dig Depth163.5 in
Machine Overhang With Counterweight16 in
Counterweight551 lb
Service Refill Capacities
Specification308E2 CR
Cooling System3.7 gal
Fuel Tank33 gal
Hydraulic Tank21.7 gal
Hydraulic System24.8 gal
Engine Oil3 gal
Cab
Specification308E2 CR
Dynamic Operator Sound Pressure70 dB(A) ISO 6396
Average Exterior Sound Pressure99 dB(A) ISO 6395 Dynamic Test
Travel System
Specification308E2 CR
Maximum Traction Force - High Speed8,408 lb
Maximum Traction Force - Low Speed14,500 lb
Travel Speed - High3.2 mph
Travel Speed - Low1.8 mph
Gradeability - Maximum30 degrees
Ground Pressure5.26 psi
Note (1)Each track is driven by one independent 2-speed motor
Note (2)Drive modules are integrated into the roller frame for total protection
Note (3)Straight line travel when tracking and operating the front linkage simultaneously
Ratios
Figure308E2 CR
Engine horsepower per 1,000 lb of weight3.5
Fuel tank per engine horsepower0.51 gal
Reference directory classification
Equipment groupfull-size excavator
Where the 308E2 CR ranks in Cat's list — Scope of the captured comparison
BrandEquipment groupCompared entrySort order
Catfull-size excavator308E2 CRDescending quantity; 1 is largest
Figure308E2 CRRankLowest in lineHighest in line
Engine power65.0 hp69 of 7454.0 hp542.0 hp
Listed weight18,519 lb69 of 7414,330 lb207,400 lb
Fuel capacity33.0 gal69 of 7029.1 gal327.6 gal
Horsepower per 1,000 lb3.5 hp12 of 742.2 hp7.9 hp
Ground pressure5.5 psi19 (tied) of 254.4 psi14.4 psi
The 308E2 CR beside its neighbours
Base versionE70B308E2 CR311D LRR
Engine power54 hp65 hp80 hp
Weight15,256 lb18,519 lb27,514 lb
Fuel capacity29.1 gal33 gal55.5 gal
Ground pressure4.7 psi5.51 psi4.97 psi
Maximum digging depthE70B: 12.41 ft; 311D LRR: 16.54 ft

308E2 CR: owner reports

Related account: “Shutdown warnings, blade pressure and diagnostic access”: 308 CR to 310.

308E2 CR: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumsfull-size excavatorCat and the 308E2 CR24
Topics named by those titles
Title topicTitles
hydraulics3
Topic in the titleThreadsShare of matching threads
hydraulics313%
Used market for the 308E2 CR — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderCat full-size excavator136
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
308E2 CR1362014 to 2019$39,900$90,000$58,9983,700
308E2 CR: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionCat together with the full-size excavator 308E2 CRNo matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
  • Reference site: Cat 308E2 CR — RitchieSpecs. Observed 2026-09-24.
Forum threads
Used-market listings
Federal agency data

Cat 308E2 CR: Configuration records

308E2 CR
SpecificationSource figure
Engine
Engine ModelC3.3B
Gross Power66.6 hp
Net Power65 hp
Number Of Cylinders4
Power Measured @2,400 rpm
Gross Power - ISO 1439666.6 hp
AspirationTurbocharged
EmissionsMeets US EPA Tier 4 Final and EU Stage IIIB emission standards
Net Power - ISO 924965 hp
Rated Net Power - 2,400 Rpm - ISO 9249/Eec 80/126965 hp
Weights
Operating Weight - With Cab18,519 lb
Travel System
Travel Speed - High3.2 mph
Gradeability - Maximum30 degrees
Maximum Traction Force - High Speed8,408 lb
Maximum Traction Force - Low Speed14,500 lb
Travel Speed - Low1.8 mph
Note (3)Straight line travel when tracking and operating the front linkage simultaneously
Service Refill Capacities
Cooling System3.7 gal
Fuel Tank33 gal
Hydraulic Tank21.7 gal
Engine Oil3 gal
Hydraulic System
Operating Pressure - Swing3,481 psi
Operating Pressure - Equipment4,061 psi
Operating Pressure - Travel4,061 psi
Digging Force - Stick - Standard9,015 lb
Digging Force - Stick - Long7,891 lb
Digging Force - Bucket13,534 lb
Auxiliary Circuit - Secondary (174 Bar/2,524 Psi)16.9 gpm
Auxiliary Circuit - Primary (186 Bar/2,734 Psi)33.8 gpm
Pump Flow At 2,000 Rpm39.6 gpm
Swing System
Machine Swing Speed11 rpm
Blade
Blade Width7.7 ft
Blade Height17.8 in
Blade height17.7 in
Blade width7.7 ft
Lift Height15 in
Undercarriage
Track Gauge6.53 ft
Drawbar Pull20,720 lb
Max Travel Speed3.42 mph
Operational
Fuel Capacity33 gal
Hydraulic System Fluid Capacity21.7 gal
Cooling System Fluid Capacity3.7 gal
Engine Oil Capacity3 gal
Swing Mechanism
Swing Speed11 rpm
Buckets
Minimum Bucket Capacity0.5 yd3
Maximum Bucket Capacity1.1 yd3
Operating Specifications
Machine Overhang11 in
Stick Length - Standard66 in
Stick Length - Long87 in
Maximum Dig Depth163.5 in
Machine Overhang With Counterweight16 in
Cab
Dynamic Operator Sound Pressure70 dB(A) ISO 6396
Average Exterior Sound Pressure99 dB(A) ISO 6395 Dynamic Test
Additional specifications
Ground Pressure5.51 psi
Displacement203.2 cu in
Bore3.7 in
Stroke4.7 in
Operating Weight18,519 lb
Note (1)Weight with rubber tracks, bucket, operator (75 kg/165 lb), full fuel and auxiliary lines
Note (2)Weight varies depending on machine configuration
NoteLoad sensing hydraulics with variable displacement piston pump
Hydraulic System24.8 gal
Boom Swing - Left60 degrees
Dig Depth14.2 in
Counterweight551 lb

Source

More in Cat: 308 CR–310, 307D/308D CR/SB: chassis/attachment choices, 311C U/E110B.