New CAT Equipment

651 Wheel Tractor-Scraper

High productivity / low cost solution

Caterpillar is excited to announce the 651 comeback into our Wheel Tractor-Scraper lineup in 2022. Delivering high levels of productivity, the 651 single engine earthmoving system is a wise choice on numerous large-scale projects by providing fast cycle times when working in lower grades and rolling resistance applications. First introduced into the Cat® Wheel Tractor-Scraper lineup in 1962, the 651 continues to uphold its legacy as one of our signaturemachines. Its single engine power gives the ability to work with a Cat D10 or D11 push dozer delivering ultra-fast load times and the ability to work in abrasive or rocky conditions. Improvements in productivity, combined with enhancements in operator comfort, and new safety features – Powered Access System and effective wet disc brakes – for a machine offering high returns on profit and time

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    Benefits

    Enhanced Operator Comfort

    Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

    Up To 6% Higher Productivity

    Improvements in fuel efficiency, utilizing payload estimator, and the new transmission controls deliver increased productivity

    Unparalleled Safety

    Safety features help increase operator confidence by providing a safer environment for operations - effective wet disc brakes, WAVS camera, and powered access cab entry

    Up To 15% Less CO2 Emissions

    The 651 emits up to 15% less CO2 than the previous 651E.
    • Dimensions
      Axle to Vertical Hitch Pin
      1.8 ft
      Front of Tractor to Front Axle
      14.93 ft
      Ground Clearance - Tractor
      2.3 ft
      Height - Overall Shipping
      15.29 ft
      Height - Scraper Blade Maximum
      2.17 ft
      Height - Top of Cab
      12.86 ft
      Length - Overall Machine
      58.96 ft
      Rear Axle - Rear of Machine
      8.07 ft
      Wheel Base
      32.68 ft
      Width - Inside of Bowl
      12.07 ft
      Width - Outside Bowl - Shipping Width
      12.98 ft
      Width - Overall Machine
      14.3 ft
      Width - Rear Tire Center Lines
      9.21 ft
      Width - Tractor
      12.3 ft
    • Engine
      Tractor Engine
      Cat C18
    • Hydraulics
      Apron Cylinder Bore
      7.08 in
      Apron Cylinder Stroke
      29.92 in
      Bowl Cylinder Bore
      7.08 in
      Bowl Cylinder Stroke
      37.4 in
      Compensator Settings - Cushion Hitch Circuit
      3002 psi
      Cushion Hitch Circuit
      19.54 gal/min
      Relief Valve - Implement Circuit
      1999 psi
      Relief Valve - Steering Circuit
      1959 psi
      Secondary Steering Circuit
      14.52 gal/hr
      Steering Circuit (@ High Idle)
      76.08 gal/min
    • Scraper Bowl
      Apron Closure Force
      39200 lb
      Apron Opening
      92 in
      Capacity - Struck
      32 yd³
      Depth of Cut - Maximum
      17.3 in
      Depth of Spread - Maximum
      26 in
      Ground Clearance - Maximum
      2.3 ft
      Hyd. Penetration Force - 657G
      121000 lb
      Rated Load
      104058 lb
      Scraper Capacity - Heaped
      44 yd³
      Width - Cut - To Router Bits
      12.5 ft
    • Service Refill Capacities - Scraper
      Cooling System
      16.6 gal (US)
      Crankcase
      8.9 gal (US)
      Differential
      44 gal (US)
      Final Drive - Each
      7.8 gal (US)
      Fuel Tank
      430 gal (US)
      Transmission
      31.9 gal (US)
    • Service Refill Capacities - Tractor
      Cooling System
      23.4 gal (US)
      Crankcase
      13.7 gal (US)
      Differential
      36 gal (US)
      Final Drive - Each
      6 gal (US)
      Hydraulic Reservoir
      39.6 gal (US)
      Transmission
      35.9 gal (US)
      Windshield Washer
      0.5 gal (US)
    • Steering
      Steering Angle - Left
      85
      Steering Angle - Right
      90
      Width - 180° Turn - Left
      47.57 ft
      Width - 180° Turn - Right
      44.6 ft
    • Tractor Engine
      Bore
      5.7 in
      Displacement
      1105 in³
      Flywheel Power - Tractor/Scraper
      469kW (629 hp)
      Gross Power (SAE J1995)
      637 HP
      Net Power
      469 kW/637 hp
      Net Power (ISO 14396)
      585 HP
      Net Power (SAE J1349/ISO 9249)
      592 HP
      Stroke
      7.2 in
    • Transmission
      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
      Top Speed - Loaded
      34.9 mile/h
    • Weights - Push-Pull
      Front Axle
      93842 lb
      Front Axle - Loaded
      134165 lb
      Rear Axle
      66663 lb
      Rear Axle - Loaded
      130340 lb
      Scraper Shipping
      64068 lb
      Total Operating - Empty
      164244 lb
      Total Operating - Loaded
      268302 lb
      Total Shipping
      160505 lb
      Tractor Shipping
      93635 lb
    NOTE
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    ELECTRICAL
    • Alarm, backup
    • Alternator, 115 amp - tractor engine
    • Alternator, 65 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
    • Lunch box platform with holding strap
    • 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, 2 piece
    • Scraper Engine Controls
    • Seat, Air Suspension, Cat Advanced Ride Management
    • Steering Wheel - tilt and telescoping
    • Storage Compartment
    • Transmission Hold
    • Windows - sliding side
    • Windshield - laminated glass
    • Windshield Wiper/Washer - front and rear
    • Wrist Rest/Grab Handle
    POWER TRAIN
    • Tractor
    • Scraper
    OTHER STANDARD EQUIPMENT
    • Tractor
    • Scraper

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