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Caterpillar 777 (07) Off-Highway Truck Specs

Body Hoists

Caterpillar 777 (07) Off-Highway Truck Body Hoists specifications
Body Lower Time - Float 13 s — Starting 2026 Model Year
Body Lower Time - High Idle 13 s — Starting 2026 Model Year
Body Raise Time - High Idle 15 s — Starting 2026 Model Year
Pump Flow - High Idle 120.90 gpm (457.61 lpm) — Starting 2026 Model Year
Relief Valve Setting - Lower 500 psi — Starting 2026 Model Year
Relief Valve Setting - Raise 2750 psi — Starting 2026 Model Year

Brakes

Caterpillar 777 (07) Off-Highway Truck Brakes specifications
Brake Standards ISO 3450-2011 — Starting 2026 Model Year
Brake Surface Area - Front 6331 in² — Starting 2026 Model Year
Brake Surface Area - Rear 15828 in² — Starting 2026 Model Year

Cab

Caterpillar 777 (07) Off-Highway Truck Cab specifications
Air Conditioning The air conditioning system on this machine contains the fluorinated greenhouse gas refrigerant R1234yf. Refer to the machine labeling for identification of the gas. If equipped with R1234yf (Global Warming Potential = 0.501), the system contains 1.85 kg (4.1 lb) of refrigerant which has a CO2 equivalent of 0.001 metric tonnes (0.001 tons). — Starting 2026 Model Year

Capacity - Coal Bodies - 100% Fill Factor

Caterpillar 777 (07) Off-Highway Truck Capacity - Coal Bodies - 100% Fill Factor specifications
SAE 2:1 - For use with material densities less than 950 kg/m3 (1,600 lb/yd3) 164.6 cu yd — Starting 2026 Model Year
SAE 2:1 - For use with material densities of 1040-1160 kg/m3 (1,750-1,950 lb/yd3) 139 cu yd — Starting 2026 Model Year
SAE 2:1 - For use with material densities of 1160 kg/m3 (1,950 lb/yd3) 116.8 cu yd — Starting 2026 Model Year
SAE 2:1 - For use with material densities of 950-1040 kg/m3 (1,600-1,750 lb/yd3) 144 cu yd — Starting 2026 Model Year

Capacity - Dual Slope - 100% Fill Factor

Caterpillar 777 (07) Off-Highway Truck Capacity - Dual Slope - 100% Fill Factor specifications
Heaped (SAE 2:1)* 78.6 cu yd — Starting 2026 Model Year
Struck 54.8 cu yd — Starting 2026 Model Year

Capacity - X Body - 100% Fill Factor

Caterpillar 777 (07) Off-Highway Truck Capacity - X Body - 100% Fill Factor specifications
Heaped (SAE 2:1)* 83.8 cu yd — Starting 2026 Model Year
Struck 56.3 cu yd — Starting 2026 Model Year

Engine

Caterpillar 777 (07) Off-Highway Truck Engine specifications
Bore 5.70 in (14.48 cm) — Starting 2026 Model Year
Cylinders 12 — Starting 2026 Model Year
Displacement 1,959.00 cu in (32,102.33 cu cm) — Starting 2026 Model Year
Engine Model Cat® C32B — Starting 2026 Model Year
Engine Power - ISO 14396 1,008.00 hp (751.68 kw) — Starting 2026 Model Year
Engine Speed 1800 r/min — Starting 2026 Model Year
Gross Power - SAE J1995:2014 1,025.00 hp (764.35 kw) — Starting 2026 Model Year
Net Power - SAE J1349:2011 916.00 hp (683.07 kw) — Starting 2026 Model Year
Net Torque Rise Tier 4 Final/Stage V: 36%. Tier 2: 36% — Starting 2026 Model Year
Stroke 6.40 in (16.26 cm) — Starting 2026 Model Year

Final Drives

Caterpillar 777 (07) Off-Highway Truck Final Drives specifications
Differential Ratio 2.736:1 — Starting 2026 Model Year
Planetary Ratio 7.0:1 — Starting 2026 Model Year
Total Reduction Ratio 19.1576:1 — Starting 2026 Model Year

Operating Specifications

Caterpillar 777 (07) Off-Highway Truck Operating Specifications specifications
Body Capacity - SAE 2:1 83.1 cu yd — Starting 2026 Model Year
Maximum Allowable Payload (120%)* 121.30 t (121,300.00 kg) — Starting 2026 Model Year
Maximum Working Payload (110%) 111.20 t (111,200.00 kg) — Starting 2026 Model Year
Target Payload (100%) 101.10 t (101,100.00 kg) — Starting 2026 Model Year
Top Speed - Loaded 40.90 mph (65.82 kph) — Starting 2026 Model Year

Rops

Caterpillar 777 (07) Off-Highway Truck Rops specifications
FOPS Standards Falling Objects Protective Structure (FOPS) meets ISO 3449:2005 Level II FOPS criteria. — Starting 2026 Model Year
ROPS Standards Rollover Protective Structure (ROPS) for cab offered by Caterpillar meets ISO 3471:2008 ROPS criteria. — Starting 2026 Model Year

Service Refill Capacities

Caterpillar 777 (07) Off-Highway Truck Service Refill Capacities specifications
Brake Hoist System 117.00 gal (442.85 l) — Starting 2026 Model Year
Cooling System 61.00 gal (230.89 l) — Starting 2026 Model Year
Crankcase 28.70 gal (108.63 l) — Starting 2026 Model Year
Differentials 59.90 gal (226.72 l) — Starting 2026 Model Year
Final Drive - Each 20.00 gal (75.70 l) — Starting 2026 Model Year
Front wheel (each) 1.98 gal (7.49 l) — Starting 2026 Model Year
Fuel Tank (1) 300.00 gal (1,135.50 l) — Starting 2026 Model Year
Fuel Tank (2) 350.00 gal (1,324.75 l) — Starting 2026 Model Year
Steering System - Including Tank 14.10 gal (53.37 l) — Starting 2026 Model Year
Torque Converter - Transmission System 36.50 gal (138.15 l) — Starting 2026 Model Year

Sound

Caterpillar 777 (07) Off-Highway Truck Sound specifications
Sound Standards (1) The operator Equivalent Sound Pressure Level (Leq) is 73 dB(A) when SAE J1166 FEB2008 is used to measure the value for an enclosed cab. This is a work cycle sound exposure level. The cab was properly installed and maintained. The test was conducted with the cab doors and the cab windows closed. — Starting 2026 Model Year
Sound Standards (2) The exterior sound pressure level for the standard machine measured at a distance of 15 m (49 ft) according to the test procedures specified in SAE J88:2008, mid?gear moving operation is 83 dB(A). — Starting 2026 Model Year
Sound Standards (3) Hearing protection may be needed when operating with an open operator station and cab (when not properly maintained or doors/windows open) for extended periods or in a noisy environment. — Starting 2026 Model Year

Steering

Caterpillar 777 (07) Off-Highway Truck Steering specifications
Steer Angle 30.5 degrees — Starting 2026 Model Year
Steering Standards ISO 5010:2019 — Starting 2026 Model Year
Turning Circle - Clearance Diameter 93.00 ft (28.35 m) — Starting 2026 Model Year
Turning Diameter - Front 83.00 ft (25.30 m) — Starting 2026 Model Year

Suspension

Caterpillar 777 (07) Off-Highway Truck Suspension specifications
Empty Loaded Cylinder Stroke Front 2.90 in (7.37 cm) — Starting 2026 Model Year
Empty Loaded Cylinder Stroke Rear 2.50 in (6.35 cm) — Starting 2026 Model Year
Rear axle - Oscillation 5.4 degrees — Starting 2026 Model Year

Tires

Caterpillar 777 (07) Off-Highway Truck Tires specifications
Standard Tire 27.00R49 (E4) — Starting 2026 Model Year

Transmission

Caterpillar 777 (07) Off-Highway Truck Transmission specifications
Forward - 1 6.80 mph (10.94 kph) — Starting 2026 Model Year
Forward - 2 9.20 mph (14.81 kph) — Starting 2026 Model Year
Forward - 3 12.50 mph (20.12 kph) — Starting 2026 Model Year
Forward - 4 16.90 mph (27.20 kph) — Starting 2026 Model Year
Forward - 5 22.90 mph (36.85 kph) — Starting 2026 Model Year
Forward - 6 30.70 mph (49.41 kph) — Starting 2026 Model Year
Forward - 7 41.70 mph (67.11 kph) — Starting 2026 Model Year
Reverse 7.50 mph (12.07 kph) — Starting 2026 Model Year

Weight Distributions - Approximate

Caterpillar 777 (07) Off-Highway Truck Weight Distributions - Approximate specifications
Front Axle - Empty 42 % — Starting 2026 Model Year
Front Axle - Loaded 33 % — Starting 2026 Model Year
Rear Axle - Empty 58 % — Starting 2026 Model Year
Rear Axle - Loaded 67 % — Starting 2026 Model Year
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