المحرك Cummins QSB4.5 لـ حفارة Cummins

Product Description: The Cummins QSB4.5 is a 4.5L, four-cylinder, in-line, water-cooled, four-stroke diesel engine equipped with a high-pressure common rail fuel system, a turbocharger, and an intercooler. While maintaining a compact design, it delivers high power output, low fuel consumption, and low emissions, meeting EPA Tier 3/4 and EU Stage IIIA/IV emission standards.

Cummins QSB4.5 Product Specifications

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

Displacement: 4.5 L

Bore × Stroke: 107 mm × 124 mm

Compression Ratio: 17.3:1

Combustion System: High-Pressure Common Rail (HPCR) Direct Injection

Charging: Turbocharging + Intercooling

Rated Power: Approximately 110–173 hp (82–129 kW) @ 2200 rpm

Maximum Torque: Approximately 450–700 Nm @ 1400 rpm

Number of Valves: 16 (4 per cylinder)

Cooling: Water-cooled

Starting: Electric

Dry Weight: Approximately 480–520 kg

Applications: Excavators, loaders, agricultural tractors, industrial generator sets, small trucks

We also offer a full range of Cummins engines, including 4BTA3.9, 6BT5.9, 6CTA8.3, 6LTAA8.9, QSB4.5, QSB6.7, QSL8.9, QSZ13, QSM11, QSX15, NTA855, 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.