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651

651
Caterpillar
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
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

Brochures and Spec Sheets

Gallery

Specifications

Specification Value Unit
Tractor Engine
Flywheel Power - Tractor/Scraper
Bore 5.7 in
Stroke 7.2 in
Displacement 1105 in³
Scraper Capacity - Heaped 44 yd³
Rated Load 104,000 lb
Capacity - Struck 32 yd³
Depth of Cut - Maximum 17.3 in
Width - Cut - To Router Bits 12.5 ft
Ground Clearance - Maximum 2.3 ft
Depth of Spread - Maximum 26 in
Apron Opening 92 in
Apron Closure Force 39200 lb
Top Speed - Loaded 34.9 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
Bowl Cylinder Bore 7.08 in
Bowl Cylinder Stroke 37.4 in
Apron Cylinder Bore 7.08 in
Apron Cylinder Stroke 29.92 in
Steering Circuit (@ High Idle) 76.08 gpm
Cushion Hitch Circuit 19.54 gpm
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
Width - 180° Turn - Right 44.6 ft
Width - 180° Turn - Left 47.57 ft
Steering Angle - Right
Steering Angle - Left
Crankcase 13.7 gal (US)
Transmission 35.9 gal (US)
Differential 36 gal (US)
Final Drive - Each 6.3 gal (US)
Cooling System 23.4 gal (US)
Hydraulic Reservoir 39.6 gal (US)
Windshield Washer 0.5 gal (US)
Width - Overall Machine 14.3 ft
Width - Tractor 11.87 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 12.77 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
Total Shipping 160505 lb
Tractor Shipping 93635 lb
Scraper Shipping 64068 lb
Total Operating - Empty 164,244. lb
Front Axle 93842 lb
Rear Axle 66663 lb
Total Operating - Loaded 268,302. lb
Front Axle - Loaded 134165 lb
Rear Axle - Loaded 130340 lb
Hyd. Penetration Force - 657G 121000 lb
Net Power (SAE J1349/ISO 9249) 592 hp
Crankcase 8.9 gal (US)
Gross Power (SAE J1995) 637 hp
Net Power (ISO 14396) 585 hp
Transmission 31.9 gal (US)
Net Power
Cooling System 16.6 gal (US)
Final Drive - Each 7.8 gal (US)
Fuel Tank 430 gal (US)
Differential 44 gal (US)

Standard Equipment

  • NOTE
  • ELECTRICAL
  • OPERATOR ENVIRONMENT
  • POWER TRAIN
  • OTHER STANDARD EQUIPMENT