New CAT Equipment

657 Wheel Tractor-Scraper

Cat® Wheel Tractor-Scraper 657 twin engine has the power to boost productivity by utilize push-pull loading. Combine this ability with improvements in productivity, enhancements in operator comfort, and new safety features – Powered Access System and effective wet disc brakes – and you have a machine offering high returns on profit and time.

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    Product Specs

    Engine

    Tractor Engine Cat C18
    Scraper Engine Cat C15

    Tractor Engine

    Flywheel Power - Tractor/Scraper 469kW (629 hp) / 353 kW (473 hp)
    Net Power 469 kW/637 hp
    Gross Power (SAE J1995) 637 HP
    Net Power (ISO 14396) 637 HP
    Bore 5.7 in
    Stroke 7.2 in
    Displacement 1105 in³
    Net Power (SAE J1349/ISO 9249) 592 HP

    Scraper Engine

    Net Power 353 kW/447 hp
    Gross Power (SAE J1995) 481 HP
    Net Power (ISO 14396) 480 HP
    Net Power (SAE J1349/ISO 9249) 452 HP
    Bore 5.4 in
    Stroke 6.75 in
    Displacement 928 in³

    Scraper Bowl

    Scraper Capacity - Heaped 44 yd³
    Rated Load 104058 lb
    Capacity - Struck 32 yd³
    Depth of Cut - Maximum 16.4 in
    Width - Cut - To Router Bits 12.5 ft
    Ground Clearance - Maximum 2.3 ft
    Hyd. Penetration Force - 657G 121000 lb
    Depth of Spread - Maximum 26 in
    Apron Opening 92 in
    Apron Closure Force 39200 lb

    Transmission

    Top Speed - Loaded 33 mile/h
    1 Forward 3.5 mile/h
    2 Forward 6.5 mile/h
    3 Forward 7.8 mile/h
    4 Forward 10.6 mile/h
    5 Forward 14.2 mile/h
    6 Forward 19.2 mile/h
    7 Forward 25.7 mile/h
    8 Forward 34.9 mile/h
    Reverse 6.7 mile/h

    Hydraulics

    Bowl Cylinder Bore 7.08 in
    Bowl Cylinder Stroke 37.4 in
    Apron Cylinder Bore 7.08 in
    Apron Cylinder Stroke 29.92 in
    Steering Circuit (@ High Idle) 76.08 gal/min
    Cushion Hitch Circuit 19.54 gal/min
    Secondary Steering Circuit 14.52 gal/hr
    Relief Valve - Steering Circuit 1959 psi
    Relief Valve - Implement Circuit 1999 psi
    Compensator Settings - Cushion Hitch Circuit 3002 psi

    Steering

    Width - 180° Turn - Right 45.4 ft
    Width - 180° Turn - Left 47.57 ft
    Steering Angle - Right 90
    Steering Angle - Left 85

    Service Refill Capacities - Tractor

    Crankcase 13.7 gal (US)
    Transmission 35.9 gal (US)
    Differential 36 gal (US)
    Final Drive - Each 6 gal (US)
    Cooling System 23.4 gal (US)
    Hydraulic Reservoir 39.6 gal (US)
    Windshield Washer 0.5 gal (US)

    Service Refill Capacities - Scraper

    Fuel Tank 430 gal (US)
    Crankcase 8.9 gal (US)
    Transmission 31.9 gal (US)
    Differential 44 gal (US)
    Final Drive - Each 7.8 gal (US)
    Cooling System 16.6 gal (US)

    Dimensions

    Width - Overall Machine 14.3 ft
    Width - Tractor 12.3 ft
    Width - Rear Tire Center Lines 9.21 ft
    Width - Inside of Bowl 12.07 ft
    Width - Outside Bowl - Shipping Width 12.98 ft
    Height - Overall Shipping 15.29 ft
    Height - Top of Cab 12.86 ft
    Ground Clearance - Tractor 2.3 ft
    Front of Tractor to Front Axle 14.93 ft
    Axle to Vertical Hitch Pin 1.8 ft
    Height - Scraper Blade Maximum 2.17 ft
    Wheel Base 32.68 ft
    Length - Overall Machine 58.96 ft
    Rear Axle - Rear of Machine 8.07 ft

    Weights - Push-Pull

    Total Shipping 160505 lb
    Tractor Shipping 93635 lb
    Scraper Shipping 64068 lb
    Total Operating - Empty 164244 lb
    Front Axle 93842 lb
    Rear Axle 66663 lb
    Total Operating - Loaded 268302 lb
    Front Axle - Loaded 134165 lb
    Rear Axle - Loaded 130340 lb