The Cummins 6CTA8.3-GM155 is a high-performance, marine-certified inline-6 diesel engine engineered for auxiliary generator drive in commercial vessels, offshore platforms, yachts, and coastal craft. This 8.3-liter, 4-stroke, turbocharged and aftercooled engine with direct injection, Bosch PB pump, and GAC electronic governor produces 155 kW (208 hp) prime power at 1,500 RPM (50 Hz) and 170 kW (228 hp) standby power, delivering up to 1,000 Nm torque for reliable operation in extreme marine conditions up to 1,000 m altitude.
Fuel Efficiency and Operational Economy: Rated at ~205 g/kWh full load (approx. 65 L/hour at prime power on standard diesel), it achieves 15% better partial-load efficiency than competitors, supporting extended runtime, reduced refueling, and lower emissions for cost savings in fuel-intensive marine applications.
Consistent Power and Durability: Features a single-piece crossflow cylinder head, wet cylinder liners, 17.3:1 compression ratio, and bore/stroke of 114 × 135 mm for smooth torque delivery with ≤5% frequency stability. Handles 110% overload for 1 hour, protecting generators, navigation, and onboard electronics from surges, backed by a 30,000+ hour TBO for extended service life.
Marine-Engineered Toughness: Compact design at ~702 kg dry weight and 1,600 × 900 × 1,300 mm, compliant with IMO Tier II, SOLAS, and classification standards (ABS, DNV, CCS, Lloyd’s Register) for shock, vibration, and corrosion resistance. Idle speed of 650 RPM ensures quiet operation at ≤100 dB(A), prioritizing crew comfort in confined engine rooms.
Reduced Maintenance Focus: 500-hour service intervals, 18.9 L oil capacity, and ≤0.2 g/kWh oil consumption minimize downtime by 30%; durable dry filters and ergonomic layout enable swift onboard servicing. The 24V DC starting system guarantees starts to -20°C (heater optional), supported by Cummins’ global network for 24-48 hour parts availability.
Effortless Connectivity: Electronic governor integrates with optional Cummins ECM or Deep Sea panels for auto-throttle, CAN-bus monitoring, and remote diagnostics. Compatible with hybrid systems and paralleling for multi-engine scalability and seamless vessel integration.
Eco-Compliant Versatility: Meets IMO Tier II / EPA Tier 3 emissions without aftertreatment, optimized for 45°C ambient via seawater/freshwater heat exchanger cooling with ≤10 kPa exhaust back pressure—ideal for humid, saline environments, streamlining certifications and enhancing long-term sustainability.
