The Caterpillar C32 is a V12 diesel engine made by Caterpillar Inc. The engine displacement is 32.1 liters (1959 cubic inches). The cylinder size is 5.71 inches x 6.38 inches bore/stroke. The engine can produce up to 1900 horsepower at 2300 rpm. The peak torque of 5532 lb-ft occurs at an engine speed of 1300 to 1800 RPM. The engine weighs over three tons at 6780 pounds. The C32 is used in CAT mining equipment including the 777G mining truck and the D11T bulldozer. It is also sold for use in rail and marine applications, and for other industrial applications such as power generation. The engine has been found to carry a mean time between failures of over 1200 hours and a reliability rating of 95% in a marine environment.
Caterpillar C32B
The Caterpillar C32B is a V12 diesel engine made by Caterpillar Inc. The engine displacement is 32.1 liters (1959 cubic inches). It is normally painted in grey. The cylinder size is 5.71 inches x 6.38 inches bore/stroke. The C32B is the most power-dense high-speed diesel engineTo see what speed range is considered high speed, see:High-speed diesel engine. of Caterpillar. The engine can produce up to 2433 marine horsepower at 2300 rpm. The peak torque of 5532 lb-ft occurs at an engine speed of 1300 to 1800 RPM. The engine has an iron block, painted in grey. The engine weighs over three tons at 7500 pounds.
The C32B was initially released with a marine-focused construction in 2020. Another variant designed for heavy equipment such as cranes, drills, and haulers was released in 2025.
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