New CAT Equipment

657G Wheel Tractor-Scraper

Quick loading, high travel speeds and the ability to load and dump on the run yield fast cycle times, allowing Cat® Wheel Tractor-Scrapers to deliver a high rate of productivity.

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Product Specs

Engine

Tractor Engine Cat C18
Scraper Engine Cat C15

Tractor Engine

Flywheel Power - Tractor/Scraper 447 kW (600 hp) / 337 kW (451 hp)
Net Power 421/447 kW 564/600 hp
Gross Power - Gears 1-2 596 HP
Gross Power - Gears 3-8 632 HP
Net Power - Gears 1-2 564 HP
Net Power - Gears 3-8 600 HP
Bore 5.7 in
Stroke 7.2 in
Displacement 1105 in³

Scraper Engine

Net Power 306/337 kW 410/451 hp
Gross Power - Gears 1-2 437 HP
Gross Power - Gears 3-8 478 HP
Net Power - Gears 1-2 410 HP
Net Power - Gears 3-8 451 HP
Bore 5.5 in
Stroke 6.5 in
Displacement 928 in³

Scraper Bowl

Scraper Capacity - Heaped 44 yd³
Rated Load 104000 lb
Capacity - Struck 32 yd³
Depth of Cut - Maximum 17 in
Width - Cut - To Router Bits 12.7 in
Ground Clearance - Maximum 23 in
Cutting Edge Thickness 1.8 in
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 6.3 mile/h
3 Forward 7.8 mile/h
4 Forward 10.6 mile/h
5 Forward 14.1 mile/h
6 Forward 19 mile/h
7 Forward 25.6 mile/h
8 Forward 34.6 mile/h
Reverse 6.1 mile/h

Hydraulics

Bowl Cylinder Bore 9.25 in
Bowl Cylinder Stroke 37.4 in
Apron Cylinder Bore 9.25 in
Apron Cylinder Stroke 29.92 in
Ejector Cylinder Bore 10.24 in
Ejector Cylinder Stroke 76.61 in
Steering Circuit 99.9 gal/min
Scraper Circuit 153 gal/min
Cushion Hitch Circuit 12.7 gal/min
Secondary Steering Circuit 64.2 gal/min
Relief Valve - Steering Circuit 1959 psi
Relief Valve - Implement Circuit 1999 psi
Compensator Settings - Cushion Hitch Circuit 3002 psi

Steering

Width - 180° Turn - Right 44.62 ft
Width - 180° Turn - Left 47.57 ft
Steering Angle - Right 90°
Steering Angle - Left 85°

Service Refill Capacities - Tractor

Crankcase 17 gal (US)
Transmission 36 gal (US)
Differential 36 gal (US)
Final Drive - Each 6 gal (US)
Cooling System 33 gal (US)
Hydraulic Reservoir 80 gal (US)
Wheel Coolant - Each 34.3 gal (US)
Windshield Washer 0.5 gal (US)

Service Refill Capacities - Scraper

Fuel Tank - 657G 421.9 gal (US)
Crankcase 10 gal (US)
Transmission 32 gal (US)
Differential 44 gal (US)
Final Drive - Each 7.9 gal (US)
Wheel Coolant - Each 34.3 gal (US)
Cooling System 24 gal (US)

Dimensions

Width - Overall Machine 171 in
Width - Tractor 141.77 in
Width - Rear Tire Center Lines 110.75 in
Width - Inside of Bowl 145 in
Width - Outside Bowl - Shipping Width 154 in
Height - Overall Shipping 185.4 in
Height - Top of Cab 146.14 in
Ground Clearance - Tractor 25.39 in
Front of Tractor to Front Axle 148.4 in
Axle to Vertical Hitch Pin 23.94 in
Height - Scraper Blade Maximum 26.77 in
Wheel Base 391.97 in
Length - Overall Machine 636.38 in
Rear Axle - Rear of Machine 95.98 in
Bail Length - Maximum (Push-Pull) 72.28 in

Weights - Standard, Tandem

Total Shipping 147959 lb
Tractor Shipping 87717 lb
Scraper Shipping 60242 lb
Total Operating - Empty 150761 lb
Front Axle 87924 lb
Rear Axle 62837 lb
Total Operating - Loaded 254761 lb
Front Axle Weight - Loaded 128246 lb
Rear Axle - Weight - Loaded 126515 lb

Weights - Push-Pull

Total Shipping 160505 lb
Tractor Shipping 93635 lb
Scraper Shipping 64068 lb
Total Operating - Empty 160505 lb
Front Axle 93842 lb
Rear Axle 66663 lb
Total Operating - Loaded 264505 lb
Front Axle - Loaded 134165 lb
Rear Axle - Loaded 130340 lb