New CAT Equipment

631 Partial Wheel Tractor-Scraper

Customization for Your Operation.

Caterpillar offers partial wheel tractor-scraper power units designed for specialty machines that complement the traditional Cat® product line. These tractor-only configurations are available for purchase directly from Caterpillar OEM Solutions. They can be leveraged for a variety of final machines, including water pulls, elevating scrapers, lowboy trailer power units, and more. With improvements in productivity combined with enhancements in operator comfort and new safety features – Powered Access System and effective wet disc brakes – this machine offers high returns on time and investment.

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    Increased Comfort

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

    Up to 8% Improved Productivity

    Improvements in fuel efficiency and the new APECS transmission controls deliver more productitvity in most applications

    Additional Safety

    New safety features help operators be more productive and work more efficiently all day long

    Up To 15%

    • Engine
      Flywheel Power - Tractor
      570 HP
      Meets U.S. EPA Tier 4 Final or EU Stage V emission standards, or equivalent to U.S. EPA Tier 2, or equivalent to U.S. EPA Tier 3 and EU Stage IIIA.
      Tractor Engine
      Cat® C18
    • Service Refill Capacities - Tractor
      Cooling System
      19.8 gal (US)
      13.7 gal (US)
      41.7 gal (US)
      Final Drive - Each
      5 gal (US)
      Fuel Tank
      231 gal (US)
      Hydraulic Reservoir
      37.5 gal (US)
      29 gal (US)
      Windshield Washer
      1.3 gal (US)
    • Standards
      ISO 3450:2011
      Seat Belt: SAE J386:FEB2006
      ROPS: ISO 3471:2008. FOPS:ISO 3449:2005 Level II.
    • Steering
      Width - 180° Turn
      40.2 ft
    • Transmission
      1 Forward
      3.4 mile/h
      2 Forward
      6.2 mile/h
      3 Forward
      7.7 mile/h
      4 Forward
      10.5 mile/h
      5 Forward
      14.1 mile/h
      6 Forward
      19 mile/h
      7 Forward
      25.7 mile/h
      8 Forward
      34.7 mile/h
      6.2 mile/h
      Top Speed - Loaded
      34.7 mile/h
    • Standard and optional equipment may vary. Consult your Cat dealer for details.
    • Cat® C18 engine with Mechanically Actuated Electronic Unit Injection (MEUI)
    • Transmission: 8-speed planetary powershift, ECPC control, APECS software, programmable top gear selection, transmission hold, differential lock, guard - power train, ground speed control, machine speed limit
    • Cat engine brake
    • Electric start, 24V
    • Air cleaner, dry type with precleaner
    • Fan, hydraulic
    • Ground level engine shutdown
    • Radiator, aluminum unit core, 9 fins per inch
    • Guard, crankcase
    • Starting aid, ether
    • Braking system: primary and secondary, wet disc, hydraulic; parking, hydraulic-released, spring-applied
    • Alternator, 115 ampere
    • Batteries (4), 12V, 1,000 CCA, maintenance free, high output
    • Electrical system, 24V
    • Lighting system: LED
    • Starting/charging receptacle
    • HVAC system, heat, AC, defrost
    • Thermostat control of HVAC system
    • Coat hook
    • Lunchbox platform with holding strap
    • Diagnostic connection (2)
    • 12V power ports (2)
    • Differential lock
    • Dome courtesy light
    • Horn, electric
    • T-handle implement control
    • Radio ready
    • ROPS/FOPS cab, pressurized
    • Keypad switches: rear engine start; throttle lock; wipers/washers; hazard lights; worklights on, off; information mode; messenger display; safety tab rocker switches, parking brake
    • Seat belt, static two-piece
    • Windows, sliding
    • Windows, laminated, zipped in
    • Windshield wipers, front and rear windows, includes washers
    • Mirror, rearview
    • Door lock
    • Messenger display
    • Display gauges, warnings include: coolant temp; engine oil temp; hydraulic oil temp; DPF temp; fuel level; park brake; implement lockout; brake system, regeneration required; throttle lock; system voltage; secondary steering; bail down; differential lock; apron float; transmission hold; high beam lights; action lamp; engine speed, rpm; gear selection; DPF fill levels
    • Safety tab rocker switches
    • Seat: Cat Advanced Ride Management (ARM), Cat Comfort Series III, rotates 30 degrees
    • Steering wheel, tilt, telescoping, padded
    • Windows, right side emergency egress
    • Messenger display
    • Extended life coolant to -37° C (-34° F)
    • Advanced cushion hitch
    • Accumulators (cushion hitch and brake) with Canadian registration number (CRN)
    • Tow pin, front
    • Fenders, non-metallic
    • Heater, engine coolant 120V
    • Fast-fill fuel tank
    • Camera arrangement: Work Area Vision System (WAVS)
    • Cab beacon
    • Air horn
    • Air horn and beacon
    • Kingbolt housing
    • Rear wheel arrangement (set of 2)
    • Scraper draft arm package
    • Steering cylinder group (set of 2)