Engine

Engine Model
Cat® CT13 Engine
Horsepower @ 1700 rpm
365 - 475 hp (268 - 349 kW)
Bore
4.96 in
Engine Type
Diesel, 4-Cycle
Configuration
Inline 6-Cylinder
Stroke
6.54 in
Compression Ratio
17:1
Displacement
758.0 in3
Aspiration
Dual Series Turbochargers, Intercooler and Aftercooler
Combustion System
Direct Injection
Lubrication System Capacity
42.0 qt
Coolant Drain Interval
600,000 miles (965,606 km)
Total Engine Weight (Dry)
2400.0 lb
Width
37.0 in
Length
59.0 in
Height
49.0 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
550.0 hp
Maximum Gross Input Torque
1700.0 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 (approx.)
906.0 lb
Overall Weight with Retarder Option
1088.0 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)
1000.0 ft-lb
Side PTO Capacity (rotation same as engine, ration determined by PTO adaptor)
700.0 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
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