Cummins Engine Nt855 Manual May 2026

: It uses the Cummins Pressure-Time (PT) self-adjusting fuel system, which provides accurate metering and timing through camshaft-actuated injectors. Performance and Durability

: The "Big Cam" evolution increased the camshaft diameter to 2.5 inches, shortening injection periods to create more torque at lower engine speeds and improving fuel efficiency. Cummins Engine Nt855 Manual

: The manual's maintenance schedules support an engine capable of logging over 1 million miles or 700,000 miles before a major overhaul is expected. : It uses the Cummins Pressure-Time (PT) self-adjusting

: Because of its reliable mechanical nature, it is a staple for heavy-duty trucks, marine vessels, and industrial power generators. Technical Specifications Summary Displacement 14.0L (855 cubic inches) Configuration Inline 6-cylinder diesel Horsepower 250 – 475 HP (depending on configuration) Torque 1,000 – 1,650 lb-ft Oil Capacity Approx. 11 to 15 gallons (44–57L) NTA855-G4 - Cummins : Because of its reliable mechanical nature, it