Detroit Diesel 16V149 Turbo – Cylinder Head and Related Parts Catalog

The Detroit Diesel 16V149 turbo engine is among the most powerful models in the legendary Series 149 family. These engines are widely used in heavy-duty marine propulsion, offshore drilling rigs, and power generation systems where durability and maximum horsepower are critical. The cylinder head assembly and its related components play a vital role in maintaining compression, regulating airflow, and ensuring efficient combustion.

This catalog outlines the full range of Detroit Diesel 16V149 cylinder head parts and related components, with compatibility extending to 8V149 and 12V149 models. Each part has been engineered to OEM standards, ensuring dependable operation for continuous-duty environments.

Cylinder Heads for Detroit Diesel 149 Series

Complete Cylinder Head Assemblies

The cylinder head is the centerpiece of the Series 149 engine. For the 16V149 turbo model, the cylinder head is available as a new, fully assembled unit, complete with valves and springs. This reduces installation time and ensures a proper seal between combustion chambers and the engine block.

• Built for maximum durability in marine and industrial applications

• Direct fit for 8V149, 12V149, and 16V149 configurations

• Ensures correct compression and airflow balance across all cylinders

Bare Cylinder Heads

For operators seeking customization or rebuilding, bare heads are also available. These allow mechanics to install their own valve train components while still benefiting from the structural strength of a new casting.

Cylinder Head Gasket Kits

Old-Style Cylinder Head Gasket Kits

Designed for early production Series 149 engines, these gasket kits provide all the sealing components necessary for cylinder head installation and maintenance. They ensure a proper seal between the head and block, preventing coolant or oil leakage.

New-Style Cylinder Head Gasket Kits

Later versions of the 149 series use updated gasket designs to enhance sealing under higher pressures. These gasket kits include advanced materials that resist heat, pressure, and chemical corrosion, extending service life in demanding conditions.

Rocker Cover Gaskets

Rocker cover gaskets seal the space between the cylinder head and the rocker cover, keeping oil contained within the valve system. For the 8V149, 12V149, and 16V149 engines, these gaskets are manufactured from high-quality composite materials, ensuring a tight seal and reducing the risk of leaks under high vibration loads.

Valves and Valve Train Components

Exhaust Valves

Exhaust valves regulate the expulsion of gases from the combustion chamber. Manufactured with heat-resistant alloys, these valves withstand extreme thermal stress in turbocharged engines.

Valve Seats

Valve seat inserts ensure a solid seating surface for the intake and exhaust valves, maintaining compression and preventing blow-by. Precision-machined inserts extend cylinder head life and are essential during rebuilds.

Valve Guides

Valve guides provide accurate alignment for the valves, reducing wear on both the valve stem and cylinder head bore. Durable metallurgy ensures long service intervals in continuous-duty operation.

Valve Stem Seals

Valve stem seals control lubrication to the valve stems, preventing oil from entering the combustion chamber. High-quality seals are crucial to minimize oil consumption and reduce smoke emissions.

Valve Springs

Valve springs ensure valves open and close with proper timing. Springs for the 149 series engines are built to maintain tension under high RPMs and turbocharged pressure levels.

Valve Bridge Guides

Valve bridge guides ensure even load distribution across paired valves in the cylinder head, preventing premature wear and maintaining proper combustion timing.

Fuel System & Injector Tube Components

Injector Tubes

Injector tubes for the 16V149 turbo provide the fuel pathway from the injector to the combustion chamber. These components must resist both high pressure and heat, and are designed for easy installation during cylinder head service.

Fuel Pump Connectors and Elbows

Fuel connectors and elbows help route fuel to the injectors with proper flow and no restrictions. Available in multiple configurations, these fittings maintain leak-free operation under pressure.

Cylinder Head Maintenance Tools

Feeler Gauges for Valve Calibration

Precision feeler gauges allow for accurate adjustment of valve lash. Correct calibration is essential to maintaining efficiency, preventing valve damage, and ensuring smooth engine performance.

Sleeves and Related Cylinder Head Components

Sleeve Assemblies

Cylinder sleeves (also called liners) are critical wear components in two-stroke diesel engines. Sleeve assemblies for the Series 149 provide a robust surface for piston movement, and replacing them restores compression and performance during overhauls.

Why Cylinder Head Parts Matter for the 16V149 Turbo

The cylinder head and its supporting components are directly tied to engine performance. A failing gasket, worn valve, or leaking injector tube can cause power loss, overheating, and even catastrophic engine failure. For an engine as large and powerful as the Detroit Diesel 16V149 turbo, maintaining these components ensures:

• Consistent compression across all cylinders

• Optimized airflow and fuel delivery

• Reduced oil and coolant leaks

• Maximum power output under heavy load

• Longer engine life with fewer unscheduled repairs

Why Choose Diesel Pro Power for Detroit Diesel 16V149 Cylinder Head Parts

• Global Shipping: Fast delivery to over 180 countries, minimizing downtime for marine and industrial operations.

• Trusted Supplier: Serving over 40,000 satisfied customers worldwide.

• Comprehensive Catalog: From complete cylinder heads to the smallest valve guide, everything is available in one place.

• Specialization: Focused exclusively on marine and industrial diesel engines, not automotive.

• Expert Guidance: Our team can help identify the correct head, gasket kit, or valve for your specific arrangement or serial number.