Cummins NTA855 4BTA3.9 engine for Cummins excavator

Product Description: The Cummins NTA855 is an inline six-cylinder, water-cooled, four-stroke diesel engine with a displacement of approximately 14 L. It utilizes turbocharging and intercooler technology, and some models are equipped with electronic fuel control (CELECT/CELECT+). It features high power density, durability, reliability, and excellent fuel economy.
The NTA855 is a classic Cummins heavy-duty engine widely used in heavy-duty trucks, construction machinery, mining equipment, marine propulsion, and industrial generator sets. It maintains stable and reliable power output under high loads and harsh environments.

Cummins NTA855 Product Specifications

Engine Type: Inline 6-cylinder, 4-stroke, water-cooled diesel engine

Displacement: 14 L

Bore × Stroke: 140 mm × 152 mm

Compression Ratio: 16.5:1

Combustion System: Direct Injection

Charging: Turbocharging + Intercooling

Rated Power: Approximately 300–400 hp (224–298 kW) @ 2000–2100 rpm

Maximum Torque: Approximately 1350–1900 Nm @ 1400 rpm

Number of Valves: 24 (4 valves per cylinder)

Cooling: Water-cooled

Starting: Electric starter

Dry Weight: Approximately 1,200–1,400 kg

Applications: Heavy-duty trucks, construction machinery, mining equipment, marine propulsion, industrial generator sets

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.