C32B

The Cat® C32B commercial propulsion engine sets a benchmark for naval and governmental vessels, delivering up to 20% more power with increased durability than previous C32 models. A redesigned core engine architecture raises power density to 1200 – 1700 bhp across A, B, and C ratings — without enlarging the engine footprint — while strengthened block, crankshaft, bearings, rods, and cylinder heads stand up to sustained high loads for extended overhaul intervals and greater uptime. Certified for IMO II, IMO III, and U.S. EPA Tier 4, the C32B pairs this performance with simplified emissions compliance: a new Airless SCR aftertreatment and switchable emissions configurations reduce system weight and failure points while enabling flexible operation across regulated waters. Backed by more than 115,000 operating hours in global marine service, it delivers mission-ready power fleets can depend on.