406

631 Partial Wheel Tractor-Scraper

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.

  • Specifications

  • Standard/Optional Equipment

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Engine

Tractor Engine

Cat® C18

Flywheel Power - Tractor

570hp

Note

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.

Transmission

Top Speed - Loaded

34.7mile/h

1 Forward

3.4mile/h

2 Forward

6.2mile/h

3 Forward

7.7mile/h

4 Forward

10.5mile/h

5 Forward

14.1mile/h

6 Forward

19mile/h

7 Forward

25.7mile/h

8 Forward

34.7mile/h

Reverse

6.2mile/h

Steering

Width - 180° Turn

40.2ft

Standards

Brakes

ISO 3450:2011

ROPS/FOPS

ROPS: ISO 3471:2008. FOPS:ISO 3449:2005 Level II.

Cab

Seat Belt: SAE J386:FEB2006

Service Refill Capacities - Tractor

Fuel Tank

231gal (US)

Crankcase

13.7gal (US)

Transmission

29gal (US)

Differential

41.7gal (US)

Final Drive - Each

5gal (US)

Cooling System

19.8gal (US)

Hydraulic Reservoir

37.5gal (US)

Windshield Washer

1.3gal (US)

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

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

ELECTRICAL

Alternator, 115 ampere

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system: LED

Starting/charging receptacle

OPERATOR ENVIRONMENT

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

FLUIDS

Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

Advanced cushion hitch

Accumulators (cushion hitch and brake) with Canadian registration number (CRN)

Tow pin, front

Fenders, non-metallic

Heater, engine coolant 120V

OTHER ATTACHMENTS

Fast-fill fuel tank

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

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

ELECTRICAL

Alternator, 115 ampere

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system: LED

Starting/charging receptacle

OPERATOR ENVIRONMENT

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

FLUIDS

Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

Advanced cushion hitch

Accumulators (cushion hitch and brake) with Canadian registration number (CRN)

Tow pin, front

Fenders, non-metallic

Heater, engine coolant 120V

OTHER ATTACHMENTS

Fast-fill fuel tank

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

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

ELECTRICAL

Alternator, 115 ampere

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system: LED

Starting/charging receptacle

OPERATOR ENVIRONMENT

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

FLUIDS

Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

Advanced cushion hitch

Accumulators (cushion hitch and brake) with Canadian registration number (CRN)

Tow pin, front

Fenders, non-metallic

Heater, engine coolant 120V

OTHER ATTACHMENTS

Fast-fill fuel tank

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

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

ELECTRICAL

Alternator, 115 ampere

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system: LED

Starting/charging receptacle

OPERATOR ENVIRONMENT

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

FLUIDS

Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

Advanced cushion hitch

Accumulators (cushion hitch and brake) with Canadian registration number (CRN)

Tow pin, front

Fenders, non-metallic

Heater, engine coolant 120V

OTHER ATTACHMENTS

Fast-fill fuel tank

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

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

ELECTRICAL

Alternator, 115 ampere

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system: LED

Starting/charging receptacle

OPERATOR ENVIRONMENT

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

FLUIDS

Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

Advanced cushion hitch

Accumulators (cushion hitch and brake) with Canadian registration number (CRN)

Tow pin, front

Fenders, non-metallic

Heater, engine coolant 120V

OTHER ATTACHMENTS

Fast-fill fuel tank

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

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

ELECTRICAL

Alternator, 115 ampere

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system: LED

Starting/charging receptacle

OPERATOR ENVIRONMENT

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

FLUIDS

Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

Advanced cushion hitch

Accumulators (cushion hitch and brake) with Canadian registration number (CRN)

Tow pin, front

Fenders, non-metallic

Heater, engine coolant 120V

OTHER ATTACHMENTS

Fast-fill fuel tank

NOTE

Standard and optional equipment may vary. Consult your Cat dealer for details.

POWERTRAIN

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

ELECTRICAL

Alternator, 115 ampere

Batteries (4), 12V, 1,000 CCA, maintenance free, high output

Electrical system, 24V

Lighting system: LED

Starting/charging receptacle

OPERATOR ENVIRONMENT

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

FLUIDS

Extended life coolant to -37° C (-34° F)

OTHER EQUIPMENT

Advanced cushion hitch

Accumulators (cushion hitch and brake) with Canadian registration number (CRN)

Tow pin, front

Fenders, non-metallic

Heater, engine coolant 120V

OTHER ATTACHMENTS

Fast-fill fuel tank

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