BMW E87 E91 E81 E90 116i 316i N43B16A Cylinder Head Planned 7575671

BMW E87 E91 E81 E90 116i 316i N43B16A Cylinder Head Planned is a precision-machined component from the Cylinder Heads category, designed for N43B16A petrol engines in BMW 116i and 316i models. Surface planning ensures proper adhesion to the engine block, which promotes stable engine performance and facilitates professional repair of the crankshaft system and combustion chamber.

Specifications and technical data

• SKU: 7575671-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7575671
• Substitutable numbers: 7575671, 11127575671, 7559172
• Fuel type: Petrol
• Part type: Cylinder Head
• Category: Cylinder Heads

Application and compatibility

The presented cylinder head is designed for the N43B16A petrol engine used in popular BMW 1 Series (E81, E87) and 3 Series (E90, E91) models in 116i and 316i versions. As a result, it is a suitable choice for repairs of units with similar construction, where maintaining the factory geometry of intake and exhaust ports and correct valve operation is required.

The component comes from the group of original BMW parts, which helps maintain compliance with factory design solutions, such as the layout of oil and water channels and spark plug sockets. This is important when servicing modern petrol engines, where assembly tolerances are strictly defined.

Technical characteristics and machining

The planned mating surface of the cylinder head allows for proper compression of the gasket between the head and the engine block, which reduces the risk of exhaust gas leaks, coolant loss, and compression drops. This type of machining is particularly important after engine overheating or previous leaks.

The cylinder head is structurally adapted for operation with petrol fuel, which means a properly designed combustion chamber, cooling channels, and valve guides. In practice, this translates into stable mixture combustion conditions, correct operation of the ignition system, and the ability to maintain factory power and torque parameters.

Benefits of using a planned cylinder head

• Facilitates the restoration of proper cylinder compression after engine failure or overheating.
• Better fit to the engine block due to the machining of the mating surface.
• Preservation of the factory geometry of channels and combustion chambers characteristic of the N43B16A unit.
• Possibility to use existing engine accessories compatible with this cylinder head design.

For workshops specializing in BMW service, using such a cylinder head allows for shorter repair times and reduces the risk of problems with re-sealing the engine, which is particularly important for modern petrol engines.

Condition and service purpose

The cylinder head comes from the secondary market, making it an attractive cost-effective solution while maintaining appropriate build quality. Surface planning is crucial during reassembly, which is why this component works well in professional repairs, partial overhauls, and when replacing a damaged cylinder head after mechanical or thermal failure.

Before installation, a standard workshop procedure is recommended, including checking channel tightness, verifying the condition of valve seats, and adjusting accessories in accordance with BMW service documentation for the N43B16A engine. This approach allows you to fully utilize the potential of this cylinder head and ensure stable engine operation in the long term.

Related categories and technical materials

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as other cylinder heads, cylinder head covers, or mounting elements, check the available parts in the BMW Cylinder Heads category.

For a better understanding of the relationship between drivetrain components and vehicle handling, you can use a practical guide describing the operation of the steering and power steering system – you will find it in the article Steering and power steering – how it works and what fails?, which helps to look at car service in a holistic way.