CUMMINS B3.3 STATIC SMOOTH DRUM ROLLER

Technical Description

The 2007 Cummins B3.3 engine is a turbocharged, inline 4-cylinder diesel powerplant delivering 85 horsepower. It features a robust mechanical fuel system optimized for industrial applications such as static smooth drum rollers. The engine has a displacement of 3.3 liters (199 cubic inches) with a bore of 95 mm and a stroke of 115 mm, enabling a torque output range between 158 and 224 lb-ft (approximately 214 to 304 Nm). It operates at a rated speed of up to 2600 rpm and incorporates a compression ratio of approximately 17:1, designed for durability and efficiency in heavy-duty use. The engine is water-cooled and includes a well-engineered lubrication system with a capacity of around 7 to 8 liters of oil to ensure consistent operation under load. At approximately 250 to 275 kg dry weight, the B3.3 balances compact size with rugged construction. The turbocharged design supports enhanced combustion efficiency and power density while meeting emission regulations appropriate for its era. This engine is known for reliability and ease of maintenance, with a mechanical fuel system favoring simplicity and serviceability. It was commonly employed in industrial and construction machinery, including smooth drum rollers, where steady power and torque are critical for compaction tasks. The 2007 model continues to be supported with parts and technical documentation, reflecting its widespread adoption and proven track record in the field.