New CAT Equipment
657G Wheel Tractor-Scraper
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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 |