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
Cat
651 Wheel Tractor-Scraper
Overview
Photos
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360° View
Exterior
360° Exterior view. Double click on the image to zoom in on any area of the product.
Interior
360° interior view. Double click on the image to zoom in on any area of the product.
Showroom
657 Virtual Product Tour
Specifications
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Engine
Spec Value Tractor Engine Cat C18 -
Tractor Engine
Spec Value Flywheel Power - Tractor/Scraper 469kW (629 hp) Net Power 469 kW/637 hp Gross Power (SAE J1995) 637 HP Net Power (ISO 14396) 585 HP Bore 5.7 in Stroke 7.2 in Displacement 1105 in³ Net Power (SAE J1349/ISO 9249) 592 HP -
Scraper Bowl
Spec Value Scraper Capacity - Heaped 44 yd³ Rated Load 104058 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 Hyd. Penetration Force - 657G 121000 lb Depth of Spread - Maximum 26 in Apron Opening 92 in Apron Closure Force 39200 lb -
Transmission
Spec Value 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 -
Hydraulics
Spec Value 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 gal/min Cushion Hitch Circuit 19.54 gal/min 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 -
Steering
Spec Value Width - 180° Turn - Right 44.6 ft Width - 180° Turn - Left 47.57 ft Steering Angle - Right 90 Steering Angle - Left 85 -
Service Refill Capacities - Tractor
Spec Value Crankcase 13.7 gal (US) Transmission 35.9 gal (US) Differential 36 gal (US) Final Drive - Each 6 gal (US) Cooling System 23.4 gal (US) Hydraulic Reservoir 39.6 gal (US) Windshield Washer 0.5 gal (US) -
Dimensions
Spec Value Width - Overall Machine 14.3 ft Width - Tractor 12.3 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 12.86 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 -
Weights - Push-Pull
Spec Value Total Shipping 160505 lb Tractor Shipping 93635 lb Scraper Shipping 64068 lb Total Operating - Empty 164244 lb Front Axle 93842 lb Rear Axle 66663 lb Total Operating - Loaded 268302 lb Front Axle - Loaded 134165 lb Rear Axle - Loaded 130340 lb -
Service Refill Capacities - Scraper
Spec Value Fuel Tank 430 gal (US) Differential 44 gal (US) Final Drive - Each 7.8 gal (US) Transmission 31.9 gal (US) Crankcase 8.9 gal (US) Cooling System 16.6 gal (US)
Standard Equipment
NOTE
- Standard and optional equipment may vary. Consult your Cat dealer for details.
ELECTRICAL
- Alarm, backup
- Alternator, 115 amp - tractor engine
- Alternator, 65 amp - scraper engine
- Batteries Tractor (4), 12V Maintenance Free, High Output
- Batteries Scraper (4), 12V Maintenance Free, High Output
- Electrical System, 24V
- Lighting System - Tractor
- Lighting System - Scraper
- Starting Receptacle - tractor and scraper engines
OPERATOR ENVIRONMENT
- Air Conditioner (includes heater and defroster)
- Automotive style fuse panel with fuse puller
- Lunch box platform with holding strap
- Coat Hook
- Cup holder
- Diagnostic Connection Port (12V)
- Dome Courtesy Light
- Engine speed lock
- Fan defroster
- Gauge Group
- Horn
- Implement Control Joystick
- Rearview Mirrors
- Radio Ready
- 2 radio openings, speakers, and 5-amp converter
- ROPS Cab with Sound Suppression and Pressurization
- Static Seatbelt, 2 piece
- Scraper Engine Controls
- Seat, Air Suspension, Cat Advanced Ride Management
- Steering Wheel - tilt and telescoping
- Storage Compartment
- Transmission Hold
- Windows - sliding side
- Windshield - laminated glass
- Windshield Wiper/Washer - front and rear
- Wrist Rest/Grab Handle
POWER TRAIN
- Tractor
- Scraper
OTHER STANDARD EQUIPMENT
- Tractor
- Scraper