Cummins KTA50 Engine 

Part Number:3175690  Core Model: KTA50 (V16, 4?stroke, 50.3L) | Power Range: 1180–2000 hp (880–1492 kW) | Peak Torque: 6588 N·m @ 1500 RPM | Configuration: V?16, 4?valve, turbocharged & jacket?water aftercooled | Fuel System: Cummins PT® Mechanical (optional CENTRY® electronic control) | Applications: Mining, Oil & Gas, Marine, Industrial G?Drive, Power Generation | Emissions: Non?Regulated / EPA Tier 1 / IMO Tier I/II | Dry Weight: 5166 kg

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Product Overview

The Cummins KTA50 is a heavy?duty V16?cylinder diesel engine engineered for 24/7 operation in the world’s most demanding environments. As the mechanical flagship of the Cummins K?Series, it delivers unmatched reliability, power density, and durability for mining haul trucks, oilfield drilling, marine propulsion, and prime/standby power generation. With a 50.3L displacement, 159 mm × 159 mm bore/stroke, and robust cast?iron architecture, the KTA50 withstands extreme loads, high temperatures, and harsh conditions while minimizing total cost of ownership. Its proven PT fuel system and Step Timing Control (STC) ensure optimal performance across all load and ambient scenarios

Core Design & Engineering Features

Engine Architecture

• V16, 4?Valve Cylinder Head: Dual overhead camshafts (DOHC) with four valves per cylinder for superior airflow and combustion efficiency; high?strength cast?iron construction resists thermal distortion.
• Monoblock Cylinder Block: Heavy?duty 60° V?cast iron block with integrated coolant jackets and reinforced main bearing caps, designed for peak cylinder pressures exceeding 180 bar.
• Fillet?Hardened Crankshaft: Forged steel crankshaft with fillet?hardened journals and rolled threads for maximum fatigue resistance, optimized for high?torque output.
• Gallery?Cooled Pistons: Forged aluminum pistons with internal oil galleries reduce crown temperatures, extending piston ring life and improving durability.
• Wet Cylinder Liners: Centrifugally cast iron liners with cross?hatch honing for optimal oil retention; replaceable design lowers overhaul costs.

Air Handling & Turbocharging

• Turbocharged & Jacket?Water Aftercooled: Single?stage Holset turbocharging with jacket?water aftercooling maximizes intake air density and power output, optimized for consistent performance in high?ambient conditions.
• Pulse Exhaust Manifold: Pressure?pulse design recovers exhaust energy to boost low?speed torque and fuel efficiency.
• High?Efficiency Air Filtration: Heavy?duty air cleaners with replaceable elements protect turbochargers and injectors from contamination.

Fuel System

• Cummins PT® Fuel System: Proven mechanical fuel injection with high?pressure injectors for precise fuel delivery; features low?pressure fuel supply, minimal plumbing, and built?in overspeed protection.
• Step Timing Control (STC): Inbuilt system optimizes engine timing at all load and temperature combinations, improving cold starting and reducing light?load fuel consumption.
• CENTRY® Electronic Control (Optional): Advanced electronic management for enhanced performance, fuel efficiency, and diagnostics.

Lubrication & Cooling

• Full?Pressure Lubrication: High?capacity oil pump with a 273 L sump ensures consistent oil flow to all critical components; Cummins Prelub System pressurizes oil before cranking, extending engine life.
• Dual?Loop Cooling System: Two?circuit cooling with jacket?water aftercooling maximizes heat rejection; engine?mounted heat exchangers provide reliable cooling in harsh environments.

Technical Specifications (KTA50 Mechanical)

Parameter	Specification	Notes
Engine Type	V16, 4?stroke, diesel	4 valves per cylinder
Displacement	50.3 L (3067 in³)	159 mm × 159 mm bore/stroke
Compression Ratio	13.9:1	Optimized for diesel fuel
Aspiration	Turbocharged + jacket?water aftercooled	Single?stage Holset turbo
Rated Power	1180–2000 hp @ 1500–2100 RPM	880–1492 kW
Peak Torque	6588 N·m @ 1500 RPM	4859 lb?ft
Dry Weight	5166 kg	Engine?only weight
Idle Speed	650 RPM	Minimum stable idle
Lubrication System	Full?pressure, 273 L sump	Prelub system standard
Cooling System	Dual?loop, water?cooled	Jacket?water aftercooling
Fuel Consumption	~200 g/kW·h @ rated load	Optimized for efficiency
Emissions	Non?Regulated / EPA Tier 1 / IMO Tier I/II	Application?dependent
Dimensions (L×W×H)	2694×1564×2260 mm	106×62×89 in

Application Compatibility

• Mining: Mechanical?drive haul trucks, loaders, excavators, and shovels (1600–2000 hp).
• Oil & Gas: Well servicing, drilling rigs, and compressor drives.
• Marine: Propulsion & auxiliary power for commercial vessels; IMO Tier I/II compliant.
• Industrial: G?drive for crushers, conveyors, and material handling equipment.
• Power Generation: Prime/standby generators (50/60 Hz); 1028–1440 kW prime power.

Performance & Operational Benefits

• Extreme Durability: Robust design delivers 12,000–15,000 hours to overhaul, minimizing downtime.
• Superior Torque: High low?end torque ensures excellent pulling power and transient response under heavy loads.
• Fuel Efficiency: Optimized combustion and air handling reduce fuel consumption vs. competitive engines.
• Low Maintenance: Modular design, easy service access, and long service intervals lower operating costs.
• Cold Starting: STC system improves cold starting performance in low?temperature environments.
• Global Support: Backed by Cummins’ worldwide dealer network for parts, service, and technical support.

Installation & Service Guidelines

Pre?Installation

1. Verify engine model and part numbers against equipment specifications.
2. Inspect engine mounts, cooling system, and fuel lines for compatibility.
3. Prime the lubrication system using the Cummins Prelub System to ensure oil pressure before startup.
4. For CENTRY?equipped models, configure electronic settings via Cummins Insite software.

Maintenance Best Practices

• Oil Change: Every 500 hours with Cummins Premium Blue™ CJ?4 oil; use genuine Cummins filters.
• Coolant Maintenance: Use Cummins Extended Life Coolant (ELC); test annually for corrosion protection.
• Air Filter: Replace every 250 hours or when restriction indicators activate.
• Fuel System: Drain water separators daily; replace fuel filters every 500 hours.
• Inspections: Perform cylinder compression, leak?down, and turbocharger boost pressure tests annually.

Quality & Warranty

• OEM Manufacturing: Built to Cummins’ ISO 9001 standards; 100% factory?tested for performance and reliability.
• Warranty: Comprehensive one?year warranty for marine applications; extended coverage available for industrial and power generation use.
• Global Parts Availability: Genuine Cummins parts available through a worldwide network of authorized dealers.