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Open Bowl Scrapers
Cat® Wheel Tractor-Scraper 657 twin engine has the power to boost productivity by utilize push-pull loading. Combine this ability with improvements in productivity, enhancements in operator comfort, and new safety features – Powered Access System and effective wet disc brakes – and you have a machine offering high returns on profit and time.
Tractor Engine
Cat C18
Scraper Engine
Cat C15
Flywheel Power - Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Net Power
469 kW/637 hp
Key Features
BE MORE PRODUCTIVE
WORK IN COMFORT
DESIGNED FOR SAFETY
EASY TO OPERATE
INTEGRATED CAT TECHNOLOGIES
EXECUTE EFFICIENCY
Specifications
Metric
|
Imperial
Engine 
Tractor Engine
Cat C18
Scraper Engine
Cat C15
Tractor Engine
Flywheel Power - Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Net Power
469 kW/637 hp
Gross Power (SAE J1995)
637 hp
475 kW
Net Power (ISO 14396)
637 hp
469 kW
Net Power (SAE J1349/ISO 9249)
584 hp
436 kW
Bore
5.7 in
145 mm
Stroke
7.2 in
183 mm
Displacement
1105 in³
18.1 l
Net Power (SAE J1349/ISO 9249)
584 hp
436 kW
Scraper Engine
Net Power
469 kW/637 hp
Gross Power (SAE J1995)
637 hp
475 kW
Net Power (ISO 14396)
637 hp
469 kW
Net Power (SAE J1349/ISO 9249)
584 hp
436 kW
Bore
5.7 in
145 mm
Stroke
7.2 in
183 mm
Displacement
1105 in³
18.1 l
Scraper Bowl
Scraper Capacity - Heaped
44 yd³
33.6 m³
Rated Load
104,058 lb
47,200 kg
Capacity - Struck
32 yd³
24.5 m³
Depth of Cut - Maximum
16.4 in
417 mm
Width - Cut - To Router Bits
12.5 ft
3.8 m
Ground Clearance - Maximum
2.3 ft
0.7 m
Hyd. Penetration Force - 657G
121000 lb
542 kN
Depth of Spread - Maximum
26 in
660 mm
Apron Opening
92 in
2337 mm
Apron Closure Force
39200 lb
176 kN
Transmission
Top Speed - Loaded
33 mile/h
56.1 km/h
1 Forward
3.5 mile/h
5.7 km/h
2 Forward
6.5 mile/h
10.5 km/h
3 Forward
7.8 mile/h
12.5 km/h
4 Forward
10.6 mile/h
17 km/h
5 Forward
14.2 mile/h
22.8 km/h
6 Forward
19.2 mile/h
30.9 km/h
7 Forward
25.7 mile/h
41.4 km/h
8 Forward
34.9 mile/h
56.1 km/h
Reverse
6.7 mile/h
10.8 km/h
Hydraulics
Bowl Cylinder Bore
7.08 in
180 mm
Bowl Cylinder Stroke
37.4 in
950 mm
Apron Cylinder Bore
7.08 in
180 mm
Apron Cylinder Stroke
29.92 in
759.5 mm
Ejector Cylinder Stroke (Stage 1/ Stage 2)
38.32 in
973.5 mm
Steering Circuit (@ High Idle)
76.08 gpm
288 L/min
Implement Circuit (@ High Idle)
517 L/min
517 L/min
Cushion Hitch Circuit
19.54 gpm
74 L/min
Secondary Steering Circuit
14.52 gal/hr
55 l/hr
Relief Valve - Steering Circuit
1959 psi
13500 kPa
Relief Valve - Implement Circuit
1999 psi
13780 kPa
Compensator Settings - Cushion Hitch Circuit
3002 psi
20700 kPa
Steering
Width - 180° Turn - Right
45.4 ft
13.85 m
Width - 180° Turn - Left
47.57 ft
14.5 m
Steering Angle - Right
90
Steering Angle - Left
85
Service Refill Capacities - Tractor
Crankcase
13.7 gal (US)
38 l
Transmission
35.9 gal (US)
136 l
Differential
36 gal (US)
136 l
Final Drive - Each
6 gal (US)
29.5 l
Cooling System
23.4 gal (US)
88.6 l
Hydraulic Reservoir
39.6 gal (US)
150 l
Windshield Washer
0.5 gal (US)
5 l
Service Refill Capacities - Scraper
Fuel Tank
430 gal (US)
1628 l
Crankcase
13.7 gal (US)
38 l
Transmission
35.9 gal (US)
136 l
Differential
36 gal (US)
136 l
Final Drive - Each
6 gal (US)
29.5 l
Cooling System
23.4 gal (US)
88.6 l
Dimensions
Width - Overall Machine
14.3 ft
4.36 m
Width - Tractor
12.3 ft
3.75 m
Width - Rear Tire Center Lines
9.21 ft
2.81 m
Width - Inside of Bowl
12.07 ft
3.68 m
Width - Outside Bowl - Shipping Width
12.98 ft
3.93 m
Height - Overall Shipping
15.29 ft
4.66 m
Height - Top of Cab
12.86 ft
3.92 m
Ground Clearance - Tractor
2.3 ft
0.7 m
Front of Tractor to Front Axle
14.93 ft
4.55 m
Axle to Vertical Hitch Pin
1.8 ft
0.55 m
Height - Scraper Blade Maximum
2.17 ft
0.66 m
Wheel Base
32.68 ft
9.96 m
Length - Overall Machine
58.96 ft
17.97 m
Rear Axle - Rear of Machine
8.07 ft
2.46 m
Weights - Push-Pull
Total Shipping
160505 lb
72804 kg
Tractor Shipping
93635 lb
42472 kg
Scraper Shipping
64068 lb
29061 kg
Total Operating - Empty
164,244. lb
74500 kg
Front Axle
93842 lb
42566 kg
Rear Axle
66663 lb
30238 kg
Total Operating - Loaded
268,302. lb
121700 kg
Front Axle - Loaded
134165 lb
60856 kg
Rear Axle - Loaded
130340 lb
59121 kg
Equipment
Standard Equipment
Emissions
Cat® C18 engine meets U.S. EPA Tier 2/EU Stage II Equivalent emission standards.
Engine Model - Tractor
Cat® C18