Power Train - Engine A combination of innovations working at the point of combustion, ACERT™ technology optimizes engine performance while meeting regulations for off-road applications. More >> link

Power Train - Transmission Integrated electronics allow the machine to monitor the entire power train, reducing component stress and providing a better ride. More >> link

Electronic Controls Integrated electronic controls provide smooth, consistent shifts through the synchronization of engine and transmission speeds. More >> link

Operator Station State-of-the-art productivity and operator comfort. More >> link

Structures Superior structural design and construction optimize performance and reliability. More >> link

Scraper Bowl Designed for optimum loading, material retention and ejection. More >> link

Auger Arrangement Excellent self-loading capability in a wide range of material. More >> link

Serviceability Count on Caterpillar for simplified service and the most productive uptime. More >> link

Customer Support Cat dealer services help you operate longer with lower costs. More >> link

Tractor Engine
Net Power - Tractor/Scraper	345 kW (462 hp)
Scraper Bowl
Capacity Heaped	34 yd3
Transmission
Travel Speed Maximum	33.2 mph
Engine
Tractor Engine	Cat® C18 ACERT™
Tractor Engine
Net Power	345/373 kW 462/500 hp
Scraper Bowl
Rated Load	82200 lb
Tractor Engine
Gross Power - Gears 1-2	488 hp
Gross Power - Gears 3-8	526 hp
Net Power - Gears 1-2	462 hp
Net Power - Gears 3-8	500 hp
Weights
Operating Weight	102459.71 lb
Weights - Standard, tandem
Total Shipping	100005.97 lb
Total Operating - empty	102459.71 lb
Front Axle	68647.46 lb
Rear Axle	33812.26 lb
Total Operating - loaded	184658.97 lb
Front Axle Weight - loaded	97869.7 lb
Rear Axle Weight - loaded	86789.28 lb
Dimensions
Width - overall machine	155 in
Width - tractor	137 in
Width - rear tire center lines	97 in
Width - inside of bowl	134 in
Width - outside rear tires	143.2 in
Height - overall shipping	168.8 in
Height - top of cab	146.3 in
Ground Clearance, Tractor	26.2 in
Front of Tractor to Front Axle	132.2 in
Axle to Vertical Hitch Pin	21.6 in
Height - scraper blade max.	21.5 in
Wheelbase	345.2 in
Length - overall machine	573.4 in
Rear Axle to Rear of Machine	95.97 in
Scraper Bowl
Capacity Struck	24 yd3
Depth of Cut - max.	17.2 in
Width of Cut, to Router Bits	138.3 in
Ground Clearance - max.	21.5 in
Cutting Edge - thickness	1.12 in.
Hyd. Penetration Force - 631G	57375 lb
Depth of Spread - max.	18.9 in
Apron Opening	79 in
Apron Closure Force	38250 lb
Tractor Engine
Bore	5.7 in
Stroke	7.2 in
Displacement	1105 in3
Transmission
1 Forward	2.9 mph
2 Forward	5.2 mph
5 Forward	13.4 mph
3 Forward	7.4 mph
4 Forward	10 mph
6 Forward	18.2 mph
7 Forward	24.5 mph
8 Forward	33.2 mph
Reverse	6.2 mph
Steering
Width - 180° Turn	40.02 ft
Steering Angle - right	90°
Steering Angle - left	85°
Service Refill Capacities - Tractor
Crankcase	11.9 gal
Fuel Tank - 631G	215.04 gal
Transmission	29 gal
Differential	39 gal
Final Drive (per side)	6.1 gal
Cooling System	29 gal
Hydraulic Reservoir	50.2 gal
Wheel Coolant (each)	19.8 gal
Windshield Washer	1.5 gal
Hydraulics
Bowl Cylinder Bore	7.2 in
Bowl Cylinder Stoke	34.4 in
Apron Cylinder Bore	8.2 in
Apron Cylinder Stroke	28.6 in
Ejector Cylinder Bore	8.2 in
Ejector Cylinder Stroke	74 in
Steering Circuit	100 gal/min
Scraper Circuit	91 gal/min
Cushion Hitch Circuit	9 gal/min
Secondary Steering Circuit	100 gal/min
Relief Valve - Steering Circuit	1987 psi
Relief Valve - Implement Circuit	2030 psi
Compensator Setting - Cushion Hitch Circuit	2320 psi
Service Refill Capacities - Scraper
Wheel Coolant (each)	19.8 gal
Transmission - 631G
1 Forward	2.9 mph
2 Forward	5.2 mph
3 Forward	7.4 mph
4 Forward	10 mph
5 Forward	13.4 mph
7 Forward	24.5 mph
6 Forward	18.2 mph
8 Forward	33.2 mph
Reverse	6.2 mph

Standard Equipment
ELECTRICAL
Alarm, backup
Directional Signals; Hazard Lights; Headlights, halogen with dimmer; Floodlight, Cutting edge
Air Conditioner (includes heater and defroster)
Air Pressure
Engine
Electric start, 24V
Cat C18 with ACERT™ Technology
6 cylinder diesel, Mechanical Electronic Unit Injection (MEUI)
Parking/Primary/Secondary
Tractor:
8-speed automatic Powershift with Electronic Control
Extended Life Coolant, -36° C (-33° F)
Air dryer
OPERATOR ENVIRONMENT
Alternator, 75 amp
Cigarette Lighter and Ashtray
Converter/Retarder temperature
Braking System
Fan, suction (steel spider with nylon blades)
Air Cleaner, dry-type with pre-cleaner
Shields - brake
Control throttle shifting
Fan hub, permanent lube
Cushion hitch
POWER TRAIN
Batteries (4), 12V Maintenance Free, High Output
Coat Hook
Electronic Monitoring System (EMS III)
Transmission
Ground level engine shutdown
Guard, crankcase
Differential - lockup
Fast Oil Change
Locks, vandalism (oil fill, dipstick)
OTHER STANDARD EQUIPMENT
Electrical System, 24V
Diagnostic Connection Port (12V)
Engine coolant temperature
Muffler
Radiator, NGMR (9 fins per inch)
Downshift Inhibitor
Fenders
Product Link ready
Lighting System
Dome Courtesy Light
Actual Transmission Gear Indicator
Starting Aid, ether
Neutral coast inhibitor
Rims - 35 inch (2)
Tow Pins - front and rear
Starting Receptacle
Gauge Group
Fuel
Thermo-shield, exhaust manifold & turbo soft wrapped
Programmable top-gear selection
Tires, 37.50-R35 radial
Horn
Speedometer
Tractor:
Tractor:
Implement Control Joystick
Tachometer
Rearview Mirrors
Transmission gear indicator
Radio Ready (two radio openings, speakers, and 5-amp converter)
ROPS Cab with Sound Suppression and Pressurization
Static Seatbelt
Seat, Air Suspension, Caterpillar Comfort, cloth
Steering Wheel - tilt and telescoping
Storage Compartment
Throttle Lock
Transmission Hold
Windows - sliding side, swing out
Windshield - laminated glass
Windshield Wiper/Washer - front and rear

Optional Equipment
Auger
Crankcase Guard, Heavy Duty
Extended Life Coolant, -50° C (-58° F)
Fan, Defrost
Fenders (scraper)
Fuel system - (fast-fill European Union Compliant)
Heater - jacket water
Hydraulic Retarder
Lights, Side Vision
Lock, Steering
Overflow Scraper Guard
Powertrain Guard
Retractable seat belts
Secondary Steering