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G Series represents an era for this size class from Caterpillar. With your input, we have designed and manufactured a truck that is reliable, economical and offers comfort, confidence, and control for your operators. Your long-term success is our goal and with G Series trucks, we’re on the right road.

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Engine
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Engine Model Cat C32 Cat C32
Gross Power - SAE J1995 1025.0 HP 765.0 kW
Net Power - SAE J1349 916.0 HP 683.0 kW
Net Power - 80/1269/EEC 916.0 HP 683.0 kW
Net Power - ISO 9249 916.0 HP 683.0 kW
Bore 5.7 in 145.0 mm
Stroke 6.4 in 162.0 mm
Displacement 1959.0 in³ 32.1 l
Peak Torque - Speed 1200.0 r/min 1200.0 r/min
Note (3) No engine derating required up to 2286 m (7,500 ft) for Tier 4/Stage V. No engine derating required up to 2286 m (7,500 ft) for Tier 4/Stage V.
Engine Speed 1800.0 r/min 1800.0 r/min
Note (2) Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F). Ratings based on SAE J1995 standard air conditions of 25° C (77° F) and 100 kPa (29.61 Hg) barometer. Power based on fuel having API gravity of 35 at 16° C (60° F) and an LHV of 42 780 kJ/kg (18,390 BTU/lb) when engine used at 30° C (86° F).
Net Torque 3899.0 ft-lb 5286.0 N·m
Note (1) Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard. Power rating applies at 1,800 rpm when tested under the specified condition for the specified standard.
Engine Power - ISO 14396 1008.0 HP 752.0 kW
Cylinders 12 12
Note (4) Meets EU Stage V emission standards. Meets EU Stage V emission standards.

BUILT IN SAFETY FEATURES

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DESIGNED FOR THE OPERATORS

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REDUCE ENVIRONMENTAL IMPACT

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DO MORE WITH LESS FUEL

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PERFORMANCE AND PRODUCTIVITY

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LONG TERM VALUE AND DURABILITY

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HEAVEY DUTY CONSTRUCTION

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PURPOSE BUILT SPECIALTY CAT ATTACHMENTS

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TOP TIER SERVICE AND SUPPORT

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777G Standard Equipment

NOTE
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  • Standard and optional equipment may vary. Consult your Cat dealer for details.

777G Optional Equipment

NOTE
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  • Standard and optional equipment may vary. Consult your Cat dealer for details.