Skip to content
Logo

Overview

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

Key Features

More Comfort. More Performance. More Versatility.

Enhanced Operator Comfort

Ergonomic controls and a newly redesigned cab interior provide a more comfortable and efficient working environment all day long

Improved Productivity Higher Productivity

Improvements in fuel efficiency, utilizing payload estimator, and the new transmission controls deliver increased productivity

Unparalleled Safety

Safety features help increase operator confidence by providing a safer environment for operations - effective wet disc brakes, WAVS camera, and powered access cab entry

Specifications

Tractor EngineCat® C18
Flywheel Power - Tractor/Scraper469kW (629 hp)
Bore5.7 in
Stroke7.2 in
Displacement1105 in³
Net Power (SAE J1349/ISO 9249)592 hp
Gross Power (SAE J1995)637 hp
Net Power (ISO 14396)585 hp
Net Power469 kW/629 hp (ISO 14369:2002)
Scraper Capacity - Heaped44 yd³
Rated Load104000 lb
Capacity - Struck32 yd³
Depth of Cut - Maximum17.3 in
Width - Cut - To Router Bits12.5 ft
Ground Clearance - Maximum2.3 ft
Depth of Spread - Maximum26 in
Apron Opening92 in
Apron Closure Force39200 lb
Hyd. Penetration Force - 657G121000 lb
Top Speed - Loaded34.9 mile/h
1 Forward3.5 mile/h
2 Forward6.5 mile/h
3 Forward7.8 mile/h
4 Forward10.6 mile/h
5 Forward14.2 mile/h
6 Forward19.2 mile/h
7 Forward25.7 mile/h
8 Forward34.9 mile/h
Reverse6.7 mile/h
Bowl Cylinder Bore7.08 in
Bowl Cylinder Stroke37.4 in
Apron Cylinder Bore7.08 in
Apron Cylinder Stroke29.92 in
Steering Circuit (@ High Idle)76.08 gpm
Cushion Hitch Circuit19.54 gpm
Secondary Steering Circuit14.52 gal/hr
Relief Valve - Steering Circuit1959 psi
Relief Valve - Implement Circuit1999 psi
Compensator Settings - Cushion Hitch Circuit3002 psi
Width - 180° Turn - Right44.6 ft
Width - 180° Turn - Left47.57 ft
Steering Angle - Right90
Steering Angle - Left85
Crankcase13.7 gal (US)
Transmission35.9 gal (US)
Differential36 gal (US)
Final Drive - Each6.3 gal (US)
Cooling System23.4 gal (US)
Hydraulic Reservoir39.6 gal (US)
Windshield Washer0.5 gal (US)
Width - Overall Machine14.3 ft
Width - Tractor11.87 ft
Width - Rear Tire Center Lines9.21 ft
Width - Inside of Bowl12.07 ft
Width - Outside Bowl - Shipping Width12.98 ft
Height - Overall Shipping15.29 ft
Height - Top of Cab12.77 ft
Ground Clearance - Tractor2.3 ft
Front of Tractor to Front Axle14.93 ft
Axle to Vertical Hitch Pin1.8 ft
Height - Scraper Blade Maximum2.17 ft
Wheel Base32.68 ft
Length - Overall Machine58.96 ft
Rear Axle - Rear of Machine8.07 ft
Total Shipping160505 lb
Tractor Shipping93635 lb
Scraper Shipping64068 lb
Total Operating - Empty164244 lb
Front Axle93842 lb
Rear Axle66663 lb
Total Operating - Loaded268302 lb
Front Axle - Loaded134165 lb
Rear Axle - Loaded130340 lb
Crankcase8.9 gal (US)
Transmission31.9 gal (US)
Cooling System16.6 gal (US)
Final Drive - Each7.8 gal (US)
Fuel Tank430 gal (US)
Differential44 gal (US)

Our Locations