Some of the largest diesel engines in existence never make it onto our highways. Instead, these massive workhorses either power off-highway equipment, industrial machinery, or watercraft and are expected to operate flawlessly-oftentimes, around the clock. The new C32 ACERT engine from Caterpillar is no exception.
The 7,000-pound V-12 has a bore of 5.71 inches and a stroke of 6.38 inches, which brings displacement to 1,959 cubic inches. The twin-turbo'd engine makes 1,925 hp at 2,300 rpm-that's nearly 1 hp per cubic inch! Fuel is provided courtesy of Cat's mechanically actuated, electronically controlled unit injection system (MEUI) and is delivered via its latest ADEM A4 electronic control unit (ECU), which makes the 32.1L engine EPA Tier 2-compliant
The new C32 ACERT replaces the previous C32 and features improvements like a smaller, but more robust engine block, 15 percent more peak power output, all standard maintenance items located on the service side of the engine for optimum access, a self-priming, gear-driven water pump, and a corrosion-proof titanium heat exchanger with an integrated fuel cooler for extended durability. The engine was designed to power pleasure craft applications like performance yachts, cruising yachts, and fishing vessels. We'd say with more than 1,900 horsepower and the latest emissions-friendly technology, that shouldn't be a problem! DP