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Cat 769C and 773B specifications

Entries in this reference
Listing-entry count
2
Short answer

Cat 769C and 773B: rigid rock trucks.

Selected configuration figures
ConfigurationDocumented field and quantity
769C
Gross Power
474 hp
Overall Length
26.27 ft
773B
Gross Power
682.6 hp
Overall Length
30.42 ft
769C and 773B specification matrix — Listing labels reported by the source
Publisher nameSource guideListing-entry countLabels named by the source
Cat769C and 773B2769C and 773B
Dimensions and weight
Specification769C773B
Overall Length26.27 ft30.42 ft
Overall Width14.81 ft15.42 ft
Overall Height12.4 ft13.88 ft
Wheelbase12.17 ft13.75 ft
Ground Clearance2.02 ft1.94 ft
Dump Height25.25 ft28.42 ft
Dump Ground Clearance1.83 ft1.86 ft
Dump
Specification769C773B
Lower Time11.4 sec14.2 sec
Load Capacity - Heaped30.87 yd344.61 yd3
Load Capacity - Struck22.89 yd334.01 yd3
Rated Payload81,000 lb119,000 lb
Raise Time11 sec11.4 sec
Specification773B
Dump Angle54.5 degrees
Engine
Specification769C
Number Of Cylinders8
Specification769C773B
Gross Power474 hp682.6 hp
Net Power450 hp650.4 hp
Power Measured @2,000 rpm2,000 rpm
Aspirationtwin-turbochargedturbocharged and aftercooled
Displacement1,099 cu in1,648 cu in
Operational
Specification769C773B
Fuel Capacity140.1 gal185 gal
Cooling System Fluid Capacity30 gal39.9 gal
Engine Oil Capacity11.9 gal18 gal
Diff And Final Drive Fluid Capacity22 gal41 gal
Steering System Fluid Capacity14.6 gal21.4 gal
Operating Voltage24 V24 V
Tire Size18-33 28 PR21.00-35 32PR (E-3)
Specification769C
Brake/Hoist System Fluid Capacity58.2 gal
Hydraulic System Fluid Capacity96.2 gal
Alternator Supplied Amperage50 amps
Transmission and speeds
Specification769C
Transmission Typeelectronically controlled power shift
Specification769C773B
Number Of Gears - Forward77
Number Of Gears - Reverse11
Max Speed46.8 mph35.7 mph
Weights
Specification769C773B
Empty Weight67,627 lb86,853 lb
Loaded Weight149,002 lb204,003 lb
Weight Distribution Front - Empty49.6 %47.3 %
Weight Distribution Rear - Empty50.4 %52.7 %
Weight Distribution Front - Loaded33.3 %33.3 %
Weight Distribution Rear - Loaded67.7 %66.7 %
Variants — Source comparison annotation
Source guideDiffering-field count reported
769C and 773B34
Ratios
Figure769C773B
Engine horsepower per 1,000 lb of weight6.77.5
Fuel tank per engine horsepower0.31 gal0.28 gal
Rated payload per cubic yard of heaped body2,624 lb2,668 lb
Reference directory classification
Equipment grouprigid rock truck
769C and 773B: forum references — Forum-title search
Forum indexEquipment class queriedNames in the searchMatching titles
Heavy Equipment Forumsrigid rock truckCat and the 769C, 773B. That is too few titles to say what owners mostly ask about, so the most recent are listed instead6
Used market for the 769C and 773B — Dated first-page listing snapshot
Observation dateListing sourceEquipment searchListings
2026-09-24MachineryTraderCat rigid rock truck35
ModelListedModel yearsLowest askingHighest askingMedian askingMedian hours
769C191982 to 1995$25,000$95,000$45,00023,617
773B161979 to 1996$30,000$195,900$72,500None shown
769C and 773B: recall reference — Dated CPSC search
Search dateDatabaseNames queriedSearch result
2026-09-24U.S. Consumer Product Safety CommissionCat together with the rigid rock truck 769C, 773BNo matching recall in this search

Sources for this page

Evidence classDocument, classification and recorded date
Reference site
  • Reference site: Cat 769C — RitchieSpecs. Observed 2026-09-24.
Reference site
  • Reference site: Cat 773B — RitchieSpecs. Observed 2026-09-24.
Forum threads
Used-market listings
Federal agency data
Recorded observations — Forum-title snapshot
Observation fieldRecorded value
Title count6
Forum indexesHeavy Equipment Forums
Search wordingthe 769C and 773B rigid rock truck
Latest title quoted by the referenceCAT 773b Fuel Consumption

Cat 769C and 773B: Configuration records

769C
SpecificationSource figure
Dimensions and weight
Overall Length26.27 ft
Overall Width14.81 ft
Overall Height12.4 ft
Wheelbase12.17 ft
Dump Height25.25 ft
Dump Ground Clearance1.83 ft
Dump
Load Capacity - Heaped30.87 yd3
Load Capacity - Struck22.89 yd3
Rated Payload81,000 lb
Engine
Number Of Cylinders8
Gross Power474 hp
Net Power450 hp
Power Measured @2,000 rpm
Aspirationtwin-turbocharged
Displacement1,099 cu in
Operational
Fuel Capacity140.1 gal
Cooling System Fluid Capacity30 gal
Engine Oil Capacity11.9 gal
Diff And Final Drive Fluid Capacity22 gal
Steering System Fluid Capacity14.6 gal
Brake/Hoist System Fluid Capacity58.2 gal
Hydraulic System Fluid Capacity96.2 gal
Operating Voltage24 V
Alternator Supplied Amperage50 amps
Tire Size18-33 28 PR
Transmission and speeds
Transmission Typeelectronically controlled power shift
Number Of Gears - Forward7
Number Of Gears - Reverse1
Max Speed46.8 mph
Weights
Empty Weight67,627 lb
Loaded Weight149,002 lb
Weight Distribution Front - Empty49.6 %
Weight Distribution Rear - Empty50.4 %
Weight Distribution Front - Loaded33.3 %
Weight Distribution Rear - Loaded67.7 %
Additional specifications
Ground Clearance2.02 ft
Lower Time11.4 sec
Raise Time11 sec

Source

773B
SpecificationSource figure
Dimensions and weight
Overall Length30.42 ft
Overall Width15.42 ft
Overall Height13.88 ft
Wheelbase13.75 ft
Dump Height28.42 ft
Dump Ground Clearance1.86 ft
Dump
Load Capacity - Heaped44.61 yd3
Load Capacity - Struck34.01 yd3
Rated Payload119,000 lb
Dump Angle54.5 degrees
Engine
Gross Power682.6 hp
Net Power650.4 hp
Power Measured @2,000 rpm
Aspirationturbocharged and aftercooled
Displacement1,648 cu in
Operational
Fuel Capacity185 gal
Cooling System Fluid Capacity39.9 gal
Engine Oil Capacity18 gal
Diff And Final Drive Fluid Capacity41 gal
Steering System Fluid Capacity21.4 gal
Operating Voltage24 V
Tire Size21.00-35 32PR (E-3)
Transmission and speeds
Number Of Gears - Forward7
Number Of Gears - Reverse1
Max Speed35.7 mph
Weights
Empty Weight86,853 lb
Loaded Weight204,003 lb
Weight Distribution Front - Empty47.3 %
Weight Distribution Rear - Empty52.7 %
Weight Distribution Front - Loaded33.3 %
Weight Distribution Rear - Loaded66.7 %
Additional specifications
Ground Clearance1.94 ft
Lower Time14.2 sec
Raise Time11.4 sec

Source

Compare Cat 769C, 773B
Dimensions and weight
Specification769C773B
Overall Length26.27 ft30.42 ft
Overall Width14.81 ft15.42 ft
Overall Height12.4 ft13.88 ft
Wheelbase12.17 ft13.75 ft
Ground Clearance2.02 ft1.94 ft
Dump Height25.25 ft28.42 ft
Dump Ground Clearance1.83 ft1.86 ft
Dump
Specification769C773B
Lower Time11.4 sec14.2 sec
Load Capacity - Heaped30.87 yd344.61 yd3
Load Capacity - Struck22.89 yd334.01 yd3
Rated Payload81,000 lb119,000 lb
Raise Time11 sec11.4 sec
Engine
Specification769C773B
Gross Power474 hp682.6 hp
Net Power450 hp650.4 hp
Power Measured @2,000 rpm2,000 rpm
Aspirationtwin-turbochargedturbocharged and aftercooled
Displacement1,099 cu in1,648 cu in
Operational
Specification769C773B
Fuel Capacity140.1 gal185 gal
Cooling System Fluid Capacity30 gal39.9 gal
Engine Oil Capacity11.9 gal18 gal
Diff And Final Drive Fluid Capacity22 gal41 gal
Steering System Fluid Capacity14.6 gal21.4 gal
Operating Voltage24 V24 V
Tire Size18-33 28 PR21.00-35 32PR (E-3)
Transmission and speeds
Specification769C773B
Number Of Gears - Forward77
Number Of Gears - Reverse11
Max Speed46.8 mph35.7 mph
Weights
Specification769C773B
Empty Weight67,627 lb86,853 lb
Loaded Weight149,002 lb204,003 lb
Weight Distribution Front - Empty49.6 %47.3 %
Weight Distribution Rear - Empty50.4 %52.7 %
Weight Distribution Front - Loaded33.3 %33.3 %
Weight Distribution Rear - Loaded67.7 %66.7 %

More in Cat: 770/770 Bare Chassis/772 specs, 793D, 769D.