Caterpillar 油圧ショベルのためのCaterpillar C4.4 c1.1 エンジン

The CAT 4.4 is a four-cylinder, in-line, water-cooled, four-stroke diesel engine with a displacement of approximately 4.4L. Equipped with turbocharging and intercooling technology, it delivers powerful power and fuel efficiency. Known for its reliability, durability, and ease of maintenance, this engine is widely used in small and medium-sized construction machinery, light trucks, agricultural equipment, and industrial generators. Its design ensures long-term, stable operation under high load conditions while meeting EPA Tier 3 / EU Stage IIIA emission standards.

CAT 4.4 Product Specifications

Engine Type: Inline 4-cylinder, 4-stroke, water-cooled diesel engine

Displacement: 4.4L

Bore × Stroke: 105 mm × 127 mm

Compression Ratio: 17.5:1

Combustion System: Direct Injection

Charging: Turbocharging + Intercooling

Rated Power: Approximately 74–100 kW (100–135 hp) @ 2200–2400 rpm

Maximum Torque: Approximately 350–450 Nm @ 1500–1800 rpm

Number of Valves: 16 (4 valves per cylinder)

Cooling: Water-cooled

Starting: Electric starter

Dry Weight: Approximately 420–450 kg

Applications: Small and medium-sized construction machinery, light trucks, agricultural machinery, industrial generator sets

We also offer a full range of Caterpillar engines, including C1.1, C2.2, C3.3, C4.4, C6.6, C7.1, C9, C13, C15, C18, etc., to meet the power needs of various types of equipment. We provide a one-stop solution to ensure that your equipment always maintains optimal performance.