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EmailEnhanced Operator Comfort
Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long
Caterpillar is excited to announce the 651 comeback into our Wheel Tractor-Scraper lineup in 2022. Delivering high levels of productivity, the 651 single engine earthmoving system is a wise choice on numerous large-scale projects by providing fast cycle times when working in lower grades and rolling resistance applications. First introduced into the Cat® Wheel Tractor-Scraper lineup in 1962, the 651 continues to uphold its legacy as one of our signaturemachines. Its single engine power gives the ability to work with a Cat D10 or D11 push dozer delivering ultra-fast load times and the ability to work in abrasive or rocky conditions. Improvements in productivity, combined with enhancements in operator comfort, and new safety features – Powered Access System and effective wet disc brakes – for a machine offering high returns on profit and time
Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long
Higher Productivity
Improvements in fuel efficiency, utilizing payload estimator, and the new transmission controls deliver increased productivity
Safety features help increase operator confidence by providing a safer environment for operations - effective wet disc brakes, WAVS camera, and powered access cab entry
| Tractor Engine | Cat® C18 |
| Flywheel Power - Tractor/Scraper | 469kW (629 hp) |
| Bore | 5.7in |
| Stroke | 7.2in |
| Displacement | 1105in³ |
| Net Power (SAE J1349/ISO 9249) | 592hp |
| Gross Power (SAE J1995) | 637hp |
| Net Power (ISO 14396) | 585hp |
| Net Power | 469 kW/629 hp (ISO 14369:2002) |
| Scraper Capacity - Heaped | 44yd³ |
| Rated Load | 104000lb |
| Capacity - Struck | 32yd³ |
| Depth of Cut - Maximum | 17.3in |
| Width - Cut - To Router Bits | 12.5ft |
| Ground Clearance - Maximum | 2.3ft |
| Depth of Spread - Maximum | 26in |
| Apron Opening | 92in |
| Apron Closure Force | 39200lb |
| Hyd. Penetration Force - 657G | 121000lb |
| Top Speed - Loaded | 34.9mile/h |
| 1 Forward | 3.5mile/h |
| 2 Forward | 6.5mile/h |
| 3 Forward | 7.8mile/h |
| 4 Forward | 10.6mile/h |
| 5 Forward | 14.2mile/h |
| 6 Forward | 19.2mile/h |
| 7 Forward | 25.7mile/h |
| 8 Forward | 34.9mile/h |
| Reverse | 6.7mile/h |
| Total Shipping | 160505lb |
| Tractor Shipping | 93635lb |
| Scraper Shipping | 64068lb |
| Total Operating - Empty | 164244lb |
| Front Axle | 93842lb |
| Rear Axle | 66663lb |
| Total Operating - Loaded | 268302lb |
| Front Axle - Loaded | 134165lb |
| Rear Axle - Loaded | 130340lb |
| Width - Overall Machine | 14.3ft |
| Width - Tractor | 11.87ft |
| Width - Rear Tire Center Lines | 9.21ft |
| Width - Inside of Bowl | 12.07ft |
| Width - Outside Bowl - Shipping Width | 12.98ft |
| Height - Overall Shipping | 15.29ft |
| Height - Top of Cab | 12.77ft |
| Ground Clearance - Tractor | 2.3ft |
| Front of Tractor to Front Axle | 14.93ft |
| Axle to Vertical Hitch Pin | 1.8ft |
| Height - Scraper Blade Maximum | 2.17ft |
| Wheel Base | 32.68ft |
| Length - Overall Machine | 58.96ft |
| Rear Axle - Rear of Machine | 8.07ft |
| Width - 180° Turn - Right | 44.6ft |
| Width - 180° Turn - Left | 47.57ft |
| Steering Angle - Right | 90 |
| Steering Angle - Left | 85 |
| Crankcase | 13.7gal (US) |
| Transmission | 35.9gal (US) |
| Differential | 36gal (US) |
| Final Drive - Each | 6.3gal (US) |
| Cooling System | 23.4gal (US) |
| Hydraulic Reservoir | 39.6gal (US) |
| Windshield Washer | 0.5gal (US) |
| Bowl Cylinder Bore | 7.08in |
| Bowl Cylinder Stroke | 37.4in |
| Apron Cylinder Bore | 7.08in |
| Apron Cylinder Stroke | 29.92in |
| Steering Circuit (@ High Idle) | 76.08gpm |
| Cushion Hitch Circuit | 19.54gpm |
| Secondary Steering Circuit | 14.52gal/hr |
| Relief Valve - Steering Circuit | 1959psi |
| Relief Valve - Implement Circuit | 1999psi |
| Compensator Settings - Cushion Hitch Circuit | 3002psi |
| Crankcase | 8.9gal (US) |
| Transmission | 31.9gal (US) |
| Cooling System | 16.6gal (US) |
| Final Drive - Each | 7.8gal (US) |
| Fuel Tank | 430gal (US) |
| Differential | 44gal (US) |
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| Other Standard Equipment |
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