Crankshaft Caterpillar 3304/3306

CAT 3304 (4-cylinder, 7.0L)
Features: Mechanical direct injection, compact structure, easy maintenance, power output approximately 75–135kW, suitable for light to medium loads.
Current Market: Concentrated in small-scale engineering projects, marine auxiliary engines, 75–100kW generator sets, and agricultural/industrial auxiliary engines; active in Southeast Asia, Africa, and small-to-medium-sized markets in China, primarily driven by demand for repair and maintenance, used equipment circulation, and wear parts.

CAT 3306 (6-cylinder, 10.5L)
Features: Mechanical direct injection, heavy-duty durability, strong torque, power output approximately 140–280kW, a classic Caterpillar heavy-duty model.
Current Market: Global market share far exceeds that of the 3304; a mainstay in large-scale engineering projects, mining, 150–300kW generator sets, marine engines, and oilfield equipment; highest activity in China, Southeast Asia, Africa, and the Middle East, with strong demand for refurbished units, used equipment, and core components.

Currently, these two crankshaft models are our main export products, with large quantities exported to Africa and the Middle East every year, and we maintain regular inventory.
Welcome to contact us for a video tour of our factory to learn about the manufacturing process of the 3304 and 3306 crankshafts.