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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.

Cat Specs
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Tractor Engine

Flywheel Power - Tractor/Scraper
469kW (629 hp) / 353 kW (473 hp)
Net Power
469 kW/637 hp
Bore
5.7 in
Stroke
7.2 in
Displacement
1105 in³

Engine

Tractor Engine
Cat C18

Scraper Bowl

Scraper Capacity - Heaped
44 yd³
Rated Load
104058 lb
Capacity - Struck
32 yd³
Depth of Cut - Maximum
16.4 in
Width - Cut - To Router Bits
12.5 ft
Ground Clearance - Maximum
2.3 ft
Hyd. Penetration Force - 657G
121000 lb
Depth of Spread - Maximum
26 in
Apron Opening
92 in
Apron Closure Force
39200 lb

Transmission

Top Speed - Loaded
33 mile/h
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

Weights - Push-Pull

Total Shipping
160505 lb
Tractor Shipping
93635 lb
Scraper Shipping
64068 lb
Total Operating - Empty
164244 lb
Front Axle
93842 lb
Rear Axle
66663 lb
Total Operating - Loaded
268302 lb
Front Axle - Loaded
134165 lb
Rear Axle - Loaded
130340 lb

Dimensions

Width - Overall Machine
14.3 ft
Width - Tractor
12.3 ft
Width - Rear Tire Center Lines
9.21 ft
Width - Inside of Bowl
12.07 ft
Width - Outside Bowl - Shipping Width
12.98 ft
Height - Overall Shipping
15.29 ft
Height - Top of Cab
12.86 ft
Ground Clearance - Tractor
2.3 ft
Front of Tractor to Front Axle
14.93 ft
Axle to Vertical Hitch Pin
1.8 ft
Height - Scraper Blade Maximum
2.17 ft
Wheel Base
32.68 ft
Length - Overall Machine
58.96 ft
Rear Axle - Rear of Machine
8.07 ft

Shipping

UPC
517

Steering

Width - 180° Turn - Right
45.4 ft
Width - 180° Turn - Left
47.57 ft
Steering Angle - Right
90
Steering Angle - Left
85

Service Refill Capacities - Tractor

Crankcase
13.7 gal (US)
Transmission
35.9 gal (US)
Differential
36 gal (US)
Final Drive - Each
6 gal (US)
Cooling System
23.4 gal (US)
Hydraulic Reservoir
39.6 gal (US)
Windshield Washer
0.5 gal (US)

Hydraulics

Bowl Cylinder Bore
7.08 in
Bowl Cylinder Stroke
37.4 in
Apron Cylinder Bore
7.08 in
Apron Cylinder Stroke
29.92 in
Cushion Hitch Circuit
19.54 gal/min
Secondary Steering Circuit
14.52 gal/hr
Relief Valve - Steering Circuit
1959 psi
Relief Valve - Implement Circuit
1999 psi
Compensator Settings - Cushion Hitch Circuit
3002 psi

Service Refill Capacities - Scraper

Final Drive - Each
7.8 gal (US)
Transmission
31.9 gal (US)
Cooling System
16.6 gal (US)
Fuel Tank
430 gal (US)
Differential
44 gal (US)
Crankcase
8.9 gal (US)