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CT660 On-Highway Truck Specifications
Engine Model Cat® CT13 Engine
Horse Power at 1700 rpm 365 - 475 hp (268 - 349 kW)
Engine Model Cat® CT13 Engine
Bore 4.96 in

Engine

Engine Model
Cat® CT13 Engine
Horse Power at 1700 rpm
365 - 475 hp (268 - 349 kW)
Engine Model
Cat® CT13 Engine
Bore
4.96 in
Engine Type
Diesel, 4-Cycle
Bore
4.96 in
Configuration
Inline 6-Cylinder
Stroke
6.54 in
Configuration
Inline 6-Cylinder
Stroke
6.54 in
Displacement
758.0 in3
Compression Ratio
17:1
Displacement
758 in³
Aspiration
Dual Series Turbochargers, Intercooler and Aftercooler
Aspiration
Dual Series Turbochargers, Intercooler and Aftercooler
Combustion System
Direct Injection
Lubrication System Capacity
42 qt (US)
Coolant Drain Interval
600,000 miles (965,606 km)
Total Engine Weight - Dry
2400 lb
Width
37 in
Length
59 in
Height
49 in
Valves
4 Valves Per Cylinder, Overhead Cam Actuated
Peak Torque - 1000 rpm
1250 - 1700 lb-ft (1695 - 2305 Nm)

Transmission

Maximum Gross Input Power
550 mm H2O
Maximum Gross Input Torque
1700 lb/ft
Transmission Model
Cat CX31® Automatic Transmission
Speeds
6 forward/1 reverse
Torque Converter
Cast aluminum design with lock up clutch
Clutches
Electro-hydraulic fully modulated, oil cooled, multidisc
Maximum Input Speed
2500 rpm
Length
35.3 in
Overall Length - With Retarder Option
39.4 in
Overall Weight - Approximate
906 lb
Overall Weight - With Retarder Option
1088 lb
Power Take-Off
Two side locations and a Cat exclusive high output rear PTO
Rear - PTO Capacity (Rotation Opposite of Engine, at 1.25 Engine Speed)
800 ft-lb
Side - PTO Capacity (Rotation Same as Engine, Ratio Determined by PTO Adaptor)
700 ft-lb
  • Chassis
    • Set-Back Axle (SBA), 116-inch and 122-inch Bumper to Back of Cab (BBC)
    • Industry Leading Turning Radius
    • Durable, heat-treated alloy steel frame rails
    • 12.0-inch rail size: 110,000 and 120,000 psi yield strength
    • Length variable in 2.0-inch increments
    • Available with rail reinforcements: one or two frame reinforcements available
    • Superior routing and clipping of all hoses and wires
  • Axles
    • Meritor, Dana and Fabco options available
  • Front Suspension
    • Multileaf, shackle type, single or two-stage spring
    • Multileaf, slipper type
    • Compatible shock absorber selection
  • Rear Suspension
    • Hendrickson suspension offerings: HaulMaax, HN, RT/RTE, RS, R, PriMaax
    • Chalmers high articulation
  • Fuel Tanks
    • Fuel tanks available in 60, 80, 100 and 120 gallon capacities
    • Single left, single right or dual fuel tanks
    • Aluminum alloy construction
  • Transmissions
    • Cat CX31 Automatic Transmission
    • Manual and UltraShift Plus Vocational transmissions built by Eaton are also available as options on the CT660