657G

Engine
Tractor Engine	Cat® C18 ACERT™
Scraper Engine	Cat C15 ACERT

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 / 445 kW
Gross Power - Gears 3-8	632 HP / 471 kW
Net Power - Gears 1-2	564 HP / 421 kW
Net Power - Gears 3-8	600 HP / 447 kW
Bore	5.7 in / 145 mm
Stroke	7.2 in / 183 mm
Displacement	1105 in³ / 18.1 l

Scraper Engine
Net Power	306/337 kW 410/451 hp
Gross Power - Gears 1-2	437 HP / 326 kW
Gross Power - Gears 3-8	478 HP / 356 kW
Net Power - Gears 1-2	410 HP / 306 kW
Net Power - Gears 3-8	451 HP / 337 kW
Bore	5.5 in / 140 mm
Stroke	6.5 in / 165 mm
Displacement	928 in³ / 15.2 l

Scraper Bowl
Scraper Capacity - Heaped	44 yd³ / 33.6 m³
Rated Load	104000 lb / 47174 kg
Capacity - Struck	32 yd³ / 24.5 m³
Depth of Cut - Maximum	17 in / 440 mm
Width - Cut - To Router Bits	12.7 in / 3846 mm
Ground Clearance - Maximum	23 in / 580 mm
Cutting Edge Thickness	1.8 in / 45 mm
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 / 55.7 km/h
1 Forward	3.5 mile/h / 5.6 km/h
2 Forward	6.3 mile/h / 10.2 km/h
3 Forward	7.8 mile/h / 12.5 km/h
4 Forward	10.6 mile/h / 17 km/h
5 Forward	14.1 mile/h / 22.7 km/h
6 Forward	19 mile/h / 30.6 km/h
7 Forward	25.6 mile/h / 41.2 km/h
8 Forward	34.6 mile/h / 55.7 km/h
Reverse	6.1 mile/h / 9.8 km/h

Hydraulics
Bowl Cylinder Bore	9.25 in / 235 mm
Bowl Cylinder Stroke	37.4 in / 950 mm
Apron Cylinder Bore	9.25 in / 235 mm
Apron Cylinder Stroke	29.92 in / 760 mm
Ejector Cylinder Bore	10.24 in / 260 mm
Ejector Cylinder Stroke	76.61 in / 1946 mm
Steering Circuit	99.9 gal/min / 378 l/min
Scraper Circuit	153 gal/min / 579 l/min
Cushion Hitch Circuit	12.7 gal/min / 48 l/min
Secondary Steering Circuit	64.2 gal/min / 243 l/min
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	44.62 ft / 13.6 m
Width - 180° Turn - Left	47.57 ft / 14.5 m
Steering Angle - Right	90°
Steering Angle - Left	85°

Service Refill Capacities - Tractor
Crankcase	17 gal (US) / 64 l
Transmission	36 gal (US) / 136 l
Differential	36 gal (US) / 136 l
Final Drive - Each	6 gal (US) / 23 l
Cooling System	33 gal (US) / 125 l
Hydraulic Reservoir	80 gal (US) / 303 l
Wheel Coolant - Each	34.3 gal (US) / 130 l
Windshield Washer	0.5 gal (US) / 2 l

Service Refill Capacities - Scraper
Fuel Tank - 657G	421.9 gal (US) / 1597 l
Crankcase	10 gal (US) / 38 l
Transmission	32 gal (US) / 121 l
Differential	44 gal (US) / 168 l
Final Drive - Each	7.9 gal (US) / 30 l
Wheel Coolant - Each	34.3 gal (US) / 130 l
Cooling System	24 gal (US) / 89 l

Dimensions
Width - Overall Machine	171 in / 4344 mm
Width - Tractor	141.77 in / 3601 mm
Width - Rear Tire Center Lines	110.75 in / 2813 mm
Width - Inside of Bowl	145 in / 3683 mm
Width - Outside Bowl - Shipping Width	154 in / 3914 mm
Height - Overall Shipping	185.4 in / 4710 mm
Height - Top of Cab	146.14 in / 3712 mm
Ground Clearance - Tractor	25.39 in / 645 mm
Front of Tractor to Front Axle	148.4 in / 3770 mm
Axle to Vertical Hitch Pin	23.94 in / 608 mm
Height - Scraper Blade Maximum	26.77 in / 680 mm
Wheel Base	391.97 in / 9956 mm
Length - Overall Machine	636.38 in / 16164 mm
Rear Axle - Rear of Machine	95.98 in / 2438 mm
Bail Length - Maximum (Push-Pull)	72.28 in / 1836 mm

Weights - Standard, Tandem
Total Shipping	147959 lb / 67113 kg
Tractor Shipping	87717 lb / 39788 kg
Scraper Shipping	60242 lb / 27325 kg
Total Operating - Empty	150761 lb / 68384 kg
Front Axle	87924 lb / 39881 kg
Rear Axle	62837 lb / 28503 kg
Total Operating - Loaded	254761 lb / 115558 kg
Front Axle Weight - Loaded	128246 lb / 58172 kg
Rear Axle - Weight - Loaded	126515 lb / 57386 kg

Weights - Push-Pull
Total Shipping	160505 lb / 72804 kg
Tractor Shipping	93635 lb / 42472 kg
Scraper Shipping	64068 lb / 29061 kg
Total Operating - Empty	160505 lb / 72804 kg
Front Axle	93842 lb / 42566 kg
Rear Axle	66663 lb / 30238 kg
Total Operating - Loaded	264505 lb / 119978 kg
Front Axle - Loaded	134165 lb / 60856 kg
Rear Axle - Loaded	130340 lb / 59121 kg