Key Specifications

The C8.3 is built to last, with a cast-iron unitized block with fewer parts than traditional diesel designs, fewer Cummins Marine Engine 6C8.3joints and simplified maintenance. This block has been structurally reinforced to resist bending and torsion, eliminating 1 dBA of noise output.

  • Heavy-duty features include:
    • Heavy-duty pistons with Ni-Resist inserts for longer life
    • Mid-stop cylinder liners that reduce cavitation and improve rebuildability
    • Plateau honing on the cylinder liners for near-perfect cylinder geometry, virtually eliminating oil consumption
    • A robust Holset HX40 wastegated turbo with excellent low-end torque
    • An in-line fuel pump that delivers higher injection pressures for cleaner combustion, more    power and flexible fueling
    • A helical gear train that operates smoother and quieter
    • A proven design with millions of C Series engines in service everywhere around the world


Feature Specifications
Engine Family 4B3.9
Engine Configuration Inline, 4 cylinder
Displacement 3.9 L
HP Range (diesel) 75-110 HP
HP Range (gas) N/A
Aspiration NA, T
Fuel System Inline/Rotary Injection Pump
Dimensions (mm) 777 x 625 x 958 mm
Weight (Kg) 355 Kg
Emissions BS III CEV Certified
Spec Sheet Download PDF