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Caterpillar 651 Scraper Specs

Dimensions

Caterpillar 651 Scraper Dimensions specifications
Axle to Vertical Hitch Pin 1.80 ft (0.55 m) - Starting 2026
Front of Tractor to Front Axle 14.93 ft (4.55 m) - Starting 2026
Ground Clearance - Tractor 2.30 ft (0.70 m) - Starting 2026
Height 16.25 ft (4.95 m)
Height - Overall Shipping 15.29 ft (4.66 m) - Starting 2026
Height - Scraper Blade Maximum 2.17 ft (0.66 m) - Starting 2026
Height - Top of Cab 12.77 ft (3.89 m) - Starting 2026
Length 53.08 ft (16.18 m)
Length - Overall Machine 58.96 ft (17.97 m) - Starting 2026
Rear Axle - Rear of Machine 8.07 ft (2.46 m) - Starting 2026
Weight 134,760.00 lbs (61,126.18 kg)
Wheel Base 32.68 ft (9.96 m) - Starting 2026
Width 14.25 ft (4.34 m)
Width - Inside of Bowl 12.07 ft (3.68 m) - Starting 2026
Width - Outside Bowl - Shipping Width 12.98 ft (3.96 m) - Starting 2026
Width - Overall Machine 14.30 ft (4.36 m) - Starting 2026
Width - Rear Tire Center Lines 9.21 ft (2.81 m) - Starting 2026
Width - Tractor 11.87 ft (3.62 m) - Starting 2026

Engine

Caterpillar 651 Scraper Engine specifications
Tractor Engine Cat® C18 - Starting 2026

Hydraulics

Caterpillar 651 Scraper Hydraulics specifications
Apron Cylinder Bore 7.08 in (17.98 cm) - Starting 2026
Apron Cylinder Stroke 29.92 in (76.00 cm) - Starting 2026
Bowl Cylinder Bore 7.08 in (17.98 cm) - Starting 2026
Bowl Cylinder Stroke 37.40 in (95.00 cm) - Starting 2026
Compensator Settings - Cushion Hitch Circuit 3002 psi - Starting 2026
Cushion Hitch Circuit 19.54 gpm (73.96 lpm) - Starting 2026
Relief Valve - Implement Circuit 1999 psi - Starting 2026
Relief Valve - Steering Circuit 1959 psi - Starting 2026
Secondary Steering Circuit 14.52 gal/hr - Starting 2026
Steering Circuit (@ High Idle) 76.08 gpm (287.96 lpm) - Starting 2026

Scraper Bowl

Caterpillar 651 Scraper Scraper Bowl specifications
Apron Closure Force 39,200.00 lbs (17,780.84 kg) - Starting 2026
Apron Opening 92.00 in (233.68 cm) - Starting 2026
Capacity - Struck 32 cu yd - Starting 2026
Depth of Cut - Maximum 17.30 in (43.94 cm) - Starting 2026
Depth of Spread - Maximum 26.00 in (66.04 cm) - Starting 2026
Ground Clearance - Maximum 2.30 ft (0.70 m) - Starting 2026
Hyd. Penetration Force - 657G 121,000.00 lbs (54,884.74 kg) - Starting 2026
Rated Load 104,000.00 lbs (47,173.67 kg) - Starting 2026
Scraper Capacity - Heaped 44 cu yd - Starting 2026
Width - Cut - To Router Bits 12.50 ft (3.81 m) - Starting 2026

Service Refill Capacities - Scraper

Caterpillar 651 Scraper Service Refill Capacities - Scraper specifications
Cooling System 16.60 gal (62.83 l) - Starting 2026
Crankcase 8.90 gal (33.69 l) - Starting 2026
Differential 44.00 gal (166.54 l) - Starting 2026
Final Drive - Each 7.80 gal (29.52 l) - Starting 2026
Fuel Tank 430.00 gal (1,627.55 l) - Starting 2026
Transmission 31.90 gal (120.74 l) - Starting 2026

Service Refill Capacities - Tractor

Caterpillar 651 Scraper Service Refill Capacities - Tractor specifications
Cooling System 23.40 gal (88.57 l) - Starting 2026
Crankcase 13.70 gal (51.85 l) - Starting 2026
Differential 36.00 gal (136.26 l) - Starting 2026
Final Drive - Each 6.30 gal (23.85 l) - Starting 2026
Hydraulic Reservoir 39.60 gal (149.89 l) - Starting 2026
Transmission 35.90 gal (135.88 l) - Starting 2026
Windshield Washer 0.50 gal (1.89 l) - Starting 2026

Steering

Caterpillar 651 Scraper Steering specifications
Steering Angle - Left 85 - Starting 2026
Steering Angle - Right 90 - Starting 2026
Width - 180° Turn - Left 47.57 ft (14.50 m) - Starting 2026
Width - 180° Turn - Right 44.60 ft (13.59 m) - Starting 2026

Tractor Engine

Caterpillar 651 Scraper Tractor Engine specifications
Bore 5.70 in (14.48 cm) - Starting 2026
Displacement 1,105.00 cu in (18,107.75 cu cm) - Starting 2026
Flywheel Power - Tractor/Scraper 469kW (629 hp) - Starting 2026
Gross Power (SAE J1995) 637.00 hp (475.02 kw) - Starting 2026
Net Power 469 kW/629 hp (ISO 14369:2002) - Starting 2026
Net Power (ISO 14396) 585.00 hp (436.24 kw) - Starting 2026
Net Power (SAE J1349/ISO 9249) 592.00 hp (441.46 kw) - Starting 2026
Stroke 7.20 in (18.29 cm) - Starting 2026

Transmission

Caterpillar 651 Scraper Transmission specifications
1 Forward 3.50 mph (5.63 kph) - Starting 2026
2 Forward 6.50 mph (10.46 kph) - Starting 2026
3 Forward 7.80 mph (12.55 kph) - Starting 2026
4 Forward 10.60 mph (17.06 kph) - Starting 2026
5 Forward 14.20 mph (22.85 kph) - Starting 2026
6 Forward 19.20 mph (30.90 kph) - Starting 2026
7 Forward 25.70 mph (41.36 kph) - Starting 2026
8 Forward 34.90 mph (56.17 kph) - Starting 2026
Reverse 6.70 mph (10.78 kph) - Starting 2026
Top Speed - Loaded 34.90 mph (56.17 kph) - Starting 2026

Weights - Push-Pull

Caterpillar 651 Scraper Weights - Push-Pull specifications
Front Axle 93,842.00 lbs (42,566.07 kg) - Starting 2026
Front Axle - Loaded 134,165.00 lbs (60,856.30 kg) - Starting 2026
Rear Axle 66,663.00 lbs (30,237.87 kg) - Starting 2026
Rear Axle - Loaded 130,340.00 lbs (59,121.30 kg) - Starting 2026
Scraper Shipping 64,068.00 lbs (29,060.79 kg) - Starting 2026
Total Operating - Empty 164,244. lb - Starting 2026
Total Operating - Loaded 268,302. lb - Starting 2026
Total Shipping 160,505.00 lbs (72,803.93 kg) - Starting 2026
Tractor Shipping 93,635.00 lbs (42,472.17 kg) - Starting 2026
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