BMW E87 E91 LCI E81 E90 116i 316i N43B16A Cylinder Head Planned 7559172

Visual condition of the part 

The product shows signs of use visible in the photos. 

BMW E87 E91 LCI E81 E90 116i 316i N43B16A Cylinder Head Planned is a precision-machined component from the Cylinder Heads category, designed for N43B16A series petrol engines. Surface planning ensures proper adhesion to the engine block, which promotes stable engine performance and facilitates professional repair. This is a solution for users looking for a proven, used part with maintained functionality and a suitable base for further component assembly.

Specifications and technical data

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

Purpose and compatibility

The presented cylinder head is dedicated to the N43B16A petrol engine used in BMW 1 and 3 series models, such as the E87, E91 LCI, E81, and E90 in 116i and 316i versions. The design corresponds to the manufacturer's factory solutions, which allows for maintaining the original performance parameters of the power unit, correct mixture flow, and proper heat dissipation.

By maintaining the geometry characteristic of this unit, the cylinder head provides a solid base for transferring accessories, valves, camshafts, and other timing system components in accordance with BMW service documentation. This is particularly important for repairs where compliance with factory tolerances is essential.

Technical characteristics and machining

The cylinder head has been planned, which means the contact surface with the engine block has been machined to restore its flatness within the limits specified by the manufacturer. This process reduces the risk of leaks under the head gasket, improves combustion chamber operating conditions, and helps maintain stable cylinder compression.

Adaptation for petrol fuel ensures that the geometry of the intake and exhaust ports, as well as the valve guide and seat arrangement, are optimized for operation in a spark-ignition engine. In practice, this translates into better engine refinement, correct load response, and the ability to precisely tune parameters within factory settings.

Application in repairs and overhauls

A used, planned cylinder head is a good choice in situations where the previous component has overheated, cracked, or deformed. This type of component allows you to:

• restore the correct tightness of the combustion system after a head gasket failure,
• restore proper valve operating conditions after mechanical damage,
• reduce repair costs compared to purchasing a new cylinder head while maintaining compliance with the factory design.

For workshops specializing in BMW service and users overseeing repairs themselves, such a cylinder head is a practical solution that allows for further, individual regeneration of internal components in accordance with established technology.

Benefits of choosing a planned cylinder head

Choosing a planned cylinder head for a BMW with an N43B16A unit helps reduce the risk of re-disassembly shortly after repair. Machining the contact surface with the block facilitates the correct installation of a new gasket, and maintaining the factory design of the ports and combustion chambers helps maintain standard performance and fuel consumption at the expected level.

The used nature of the part offers the possibility of an economical repair while preserving the original architecture of the power unit. This is especially important for cars used on a daily basis, where a reasonable balance between repair cost and engine durability and predictability is essential.

Expanding the scope of service work

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

When planning broader modernization work, it is also worth considering the use of used electronic components, such as engine control units or comfort modules. Practical tips on selecting such components can be found in the article The second life of electronics – when is it worth choosing used engine controllers, comfort modules, and parking sensors?, which helps assess the cost-effectiveness and safety of using electronics from the secondary market.