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657G Wheel Tractor-Scraper

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat® Wheel Tractor-Scrapers to deliver a high rate of productivity.

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SPECIFICATION SUMMARY
  • Flywheel Power: Tractor/Scraper 447 kW (600 hp) / 337 kW (451 hp)
  • Scraper Capacity: Heaped 44.0 yd3
  • Top Speed (Loaded) 33.0 mph
  • Tractor Engine Cat® C18 ACERT™

PRICE (USD)
Call 800-637-5000 for rate information

Tractor Engine

  • Flywheel Power: Tractor/Scraper
    447 kW (600 hp) / 337 kW (451 hp)
  • Net Power
    421/447 kW 564/600 hp
  • Gross Power - Gears 1-2
    596 HP
  • Gross Power - Gears 3-8
    632 HP
  • Net Power - Gears 1-2
    564 HP
  • Net Power - Gears 3-8
    600 HP
  • Bore
    5.7 in
  • Stroke
    7.2 in
  • Displacement
    1105 in³
  • Flywheel Power - Tractor/Scraper
    447 kW (600 hp) / 337 kW (451 hp)

Scraper Bowl

  • Scraper Capacity: Heaped
    44.0 yd3
  • Rated Load
    104000.0 lb
  • Capacity Struck
    32.0 yd3
  • Depth of Cut - max.
    17.0 in
  • Width of Cut, to Router Bits
    12.7 in
  • Ground Clearance - max.
    23.0 in
  • Cutting Edge - thickness
    1.8 in.
  • Depth of Spread - max.
    26.0 in
  • Apron Opening
    92.0 in
  • Hyd. Penetration Force - 657G
    121000 lb
  • Apron Closure Force
    39200 lb
  • Scraper Capacity - Heaped
    44 yd³
  • Rated Load
    104000 lb
  • Capacity - Struck
    32 yd³
  • Depth of Cut - Maximum
    17 in
  • Width - Cut - To Router Bits
    12.7 in
  • Ground Clearance - Maximum
    23 in
  • Cutting Edge Thickness
    1.8 in
  • Depth of Spread - Maximum
    26 in
  • Apron Opening
    92 in

Transmission

  • Top Speed (Loaded)
    33.0 mph
  • 1 Forward
    3.5 mph
  • 2 Forward
    6.3 mph
  • 3 Forward
    7.8 mph
  • 4 Forward
    10.6 mph
  • 5 Forward
    14.1 mph
  • 6 Forward
    19.0 mph
  • 7 Forward
    25.6 mph
  • 8 Forward
    34.6 mph
  • Reverse
    6.1 mph
  • Top Speed - Loaded
    33 mile/h
  • 1 Forward
    3.5 mile/h
  • 2 Forward
    6.3 mile/h
  • 3 Forward
    7.8 mile/h
  • 4 Forward
    10.6 mile/h
  • 5 Forward
    14.1 mile/h
  • 6 Forward
    19 mile/h
  • 7 Forward
    25.6 mile/h
  • 8 Forward
    34.6 mile/h
  • Reverse
    6.1 mile/h

Engine

  • Tractor Engine
    Cat® C18 ACERT™
  • Scraper Engine
    Cat C15 ACERT
  • Tractor Engine
    Cat C18
  • Scraper Engine
    Cat C15

Dimensions

  • Width - Overall Machine
    171.0 in
  • Width - Tractor
    141.77 in
  • Width - rear tire center lines
    110.75 in
  • Width - Inside of Bowl
    145.0 in
  • Height - Overall Shipping
    185.4 in
  • Height - Top of Cab
    146.14 in
  • Ground Clearance - Tractor
    25.39 in
  • Front of Tractor to Front Axle
    148.4 in
  • Axle to Vertical Hitch Pin
    23.94 in
  • Height - Scraper Blade Maximum
    26.77 in
  • Wheelbase
    391.97 in
  • Length - overall machine
    636.38 in
  • Rear Axle to Rear of Machine
    95.98 in
  • Width - Outside Bowl - Shipping Width
    154 in
  • Bail Length - Maximum (Push-Pull)
    72.28 in
  • Width - Overall Machine
    171 in
  • Width - Tractor
    141.77 in
  • Width - Rear Tire Center Lines
    110.75 in
  • Width - Inside of Bowl
    145 in
  • Height - Overall Shipping
    185.4 in
  • Height - Top of Cab
    146.14 in
  • Ground Clearance - Tractor
    25.39 in
  • Front of Tractor to Front Axle
    148.4 in
  • Axle to Vertical Hitch Pin
    23.94 in
  • Height - Scraper Blade Maximum
    26.77 in
  • Wheel Base
    391.97 in
  • Length - Overall Machine
    636.38 in
  • Rear Axle - Rear of Machine
    95.98 in

Steering

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

Service Refill Capacities - Tractor

  • Transmission
    36.0 gal
  • Differential
    36.0 gal
  • Final Drive (per side)
    6.0 gal
  • Cooling System
    33.0 gal
  • Hydraulic Reservoir
    80.0 gal
  • Crankcase
    17 gal (US)
  • Wheel Coolant - Each
    34.3 gal (US)
  • Windshield Washer
    0.5 gal (US)
  • Transmission
    36 gal (US)
  • Differential
    36 gal (US)
  • Final Drive - Each
    6 gal (US)
  • Cooling System
    33 gal (US)
  • Hydraulic Reservoir
    80 gal (US)

Hydraulics

  • Bowl Cylinder Bore
    9.25 in
  • Bowl Cylinder Stroke
    37.4 in
  • Apron Cylinder Bore
    9.25 in
  • Apron Cylinder Stroke
    29.92 in
  • Ejector Cylinder Bore
    10.24 in
  • Ejector Cylinder Stroke
    76.61 in
  • Steering Circuit
    99.9 gal/min
  • Scraper Circuit
    153.0 gal/min
  • Cushion Hitch Circuit
    12.7 gal/min
  • Relief Valve - Steering Circuit
    1959.0 psi
  • Relief Valve - Implement Circuit
    1999.0 psi
  • Compensator Setting - Cushion Hitch Circuit
    3002.0 psi
  • Secondary Steering Circuit
    64.2 gal/min
  • Bowl Cylinder Bore
    9.25 in
  • Bowl Cylinder Stroke
    37.4 in
  • Apron Cylinder Bore
    9.25 in
  • Apron Cylinder Stroke
    29.92 in
  • Ejector Cylinder Bore
    10.24 in
  • Ejector Cylinder Stroke
    76.61 in
  • Steering Circuit
    99.9 gal/min
  • Scraper Circuit
    153 gal/min
  • Cushion Hitch Circuit
    12.7 gal/min
  • Relief Valve - Steering Circuit
    1959 psi
  • Relief Valve - Implement Circuit
    1999 psi
  • Compensator Settings - Cushion Hitch Circuit
    3002 psi

Scraper Engine

  • Net Power
    306/337 kW 410/451 hp
  • Gross Power - Gears 1-2
    437 HP
  • Gross Power - Gears 3-8
    478 HP
  • Net Power - Gears 1-2
    410 HP
  • Net Power - Gears 3-8
    451 HP
  • Bore
    5.5 in
  • Stroke
    6.5 in
  • Displacement
    928 in³

Weights - Standard, Tandem

  • Total Shipping
    147959 lb
  • Tractor Shipping
    87717 lb
  • Scraper Shipping
    60242 lb
  • Total Operating - Empty
    150761 lb
  • Front Axle
    87924 lb
  • Rear Axle
    62837 lb
  • Total Operating - Loaded
    254761 lb
  • Front Axle Weight - Loaded
    128246 lb
  • Rear Axle - Weight - Loaded
    126515 lb

Weights - Push-Pull

  • Total Shipping
    160505 lb
  • Tractor Shipping
    93635 lb
  • Scraper Shipping
    64068 lb
  • Total Operating - Empty
    160505 lb
  • Front Axle
    93842 lb
  • Rear Axle
    66663 lb
  • Total Operating - Loaded
    264505 lb
  • Front Axle - Loaded
    134165 lb
  • Rear Axle - Loaded
    130340 lb

Service Refill Capacities - Scraper

  • Fuel Tank - 657G
    421.9 gal (US)
  • Crankcase
    10 gal (US)
  • Transmission
    32 gal (US)
  • Differential
    44 gal (US)
  • Final Drive - Each
    7.9 gal (US)
  • Wheel Coolant - Each
    34.3 gal (US)
  • Cooling System
    24 gal (US)

MAXIMIZE PERFORMANCE

  • Tandem engine machines improve cycle times on grades and in slippery underfoot conditions. Also improves the machine's loading characteristics in tough materials like clay.
  • Transmission Torque Converter - Increases rim pull and shortens load times, and eliminates engine stall to efficiently deliver power to the ground and move more dirt.
  • An auger mechanism in the bowl improves self-loading capabilities by lifting material off of the cutting edge and carrying it to the top of the load.

BUILT TO PERFORM

  • Proven Cat engines provide the power and torque rise for excellent lugging in tough loading conditions.
  • Variable injection timing and duration improve fuel efficiency and cold starting, decrease smoke and emissions.
  • Throttle back-up provides the operator with a preset engine speed control in the event of a throttle input failure.
  • Throttle lock allows the operator the capability of locking both engines at any operating level.
  • Directional shift management prevents the operator from shifting out of neutral when engine rpm is above a preset level.
  • Controlled throttle shifting increases drive train life by reducing the fuel injection rate just prior to shifting.
  • The aftercooler lowers intake charge air temperature to increase power and reduce thermal stresses that can cause premature wear of pistons, rings, and liners.
  • Engine oil cooler maintains optimum oil temperature for proper cooling and longer lubricant life.
  • Laminated thermal-shield improves tractor protection by reducing the temperature of exposed engine surfaces, cools engine and operating compartments, extends hose and wiring life.
  • Eight-speed power shift transmission provides automatic, on-the-go shifting for simple, reliable operation.
  • Top gear control helps prevent shifting above a programmed gear to better regulate haul road speeds.
  • The hydraulic retarder extends brake life when working on severe, downhill slopes.
  • Scraper driveline guard protects the output case, differential and ejector cylinder to help minimize driveline maintenance costs.

OPERATOR COMFORT AND CONTROL

  • Standard rubber-mounted cab reduces noise and vibration for comfortable, shift-long operation.
  • Hydraulic servo-steering system provides low-effort automotive feel and excellent maneuverability.
  • Tilt steering column adjusts to five different positions for operator comfort and control.
  • A suspension seat delivers a comfortable ride.
  • The Electronic Monitoring System checks important machine systems and provides a three-level warning.
  • Air conditioning to keep the operator comfortable.
  • The electronically controlled cushion hitch design dampens shocks to provide a smoother ride, and locks down for positive control of the cutting edge during loading and dumping.

SAVE ON MAINTENANCE TIME

  • Service points for the engine are grouped on the right side for easy access. Service platforms and numerous handholds improve access and safety. Folded core radiator allows individual cores to be replaced as modules, reducing service time and expense.
  • Diagnostic connector, with the aid of a service tool, allows quick analysis of the starting and charging circuits.
  • Electronic ground level shutoff enables the operator to stop the engine from the ground with the flip of a switch.
  • Centralized lubrication blocks for the hitch and steering reduce lube time.

BUILT-IN SAFETY FEATURES

  • Wide brake shoes and brake drums improve brake performance and reduce brake and drum wear.
  • Separate front and rear circuits. Secondary brakes engage automatically if service pressure drops.
  • Parking Brake features a spring-applied, air-released mechanism that operates the service brakes.
  • Differential Lock improves traction in slippery conditions.

Standard Equipment:

  • Electrical
    • Alarm, backup
    • Alternator, 80 amp - tractor engine
    • Alternator, 50 amp - scraper engine
    • Batteries Tractor (4), 12V Maintenance Free, High Output
    • Batteries Scraper (4), 12V Maintenance Free, High Output
    • Electrical System, 24V
    • Lighting System - Tractor
    • Lighting System - Scraper
    • Starting Receptacle - tractor and scraper engines
  • Operator Environment
    • Air Conditioner (includes heater and defroster)
    • Automotive style fuse panel with fuse puller
    • Cigarette Lighter and Ashtray
    • Coat Hook
    • Cup holder
    • Diagnostic Connection Port (12V)
    • Dome Courtesy Light
    • Engine speed lock
    • Fan defroster
    • Gauge Group
    • Horn
    • Implement Control Joystick
    • Rearview Mirrors
    • Radio Ready
    • 2 radio openings, speakers, and 5-amp converter
    • ROPS Cab with Sound Suppression and Pressurization
    • Static Seatbelt
    • Scraper Engine Controls
    • Seat, Air Suspension, Caterpillar Comfort, cloth
    • Steering Wheel - tilt and telescoping
    • Storage Compartment
    • Transmission Hold
    • Windows - sliding side, swing out
    • Windshield - laminated glass
    • Windshield Wiper/Washer - front and rear
    • Wrist Rest/Grab Handle
  • Power Train
    • Tractor
    • Scraper
  • Other Standard Equipment
    • Tractor
    • Scraper

Optional Equipment:

  • Steering Arrangements
    • Secondary Steering Arrangement
  • Integrated Technologies
    • Product Link
  • Other Attachments
    • Steering lock – external
  • Ambient Capability Arrangements
    • Extended Life Coolant, -50° C (-58° F)