BMW E82 E88 E90 E91 E92 E93 N54B30A Engine Cylinder Block 0443605

BMW E82 E88 E90 E91 E92 E93 N54B30A Engine Cylinder Block is an original part from the Engine Blocks category, designed for the N54B30A unit used in popular BMW 1 and 3 Series models. This is a solution for users who want to restore the functionality of their factory engine, maintaining the correct block geometry and compliance with the original design.

Specifications and technical data

• SKU: 0443605
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 0443605
• Substitutable numbers: 0443605, 11110443605, 0415074, 11110415074
• Part type: Engine Block
• Category: Engine Blocks

Purpose and Compatibility

The presented cylinder block is dedicated to the N54B30A engine installed in BMW E82, E88, E90, E91, E92, and E93 body styles. This makes it a solid foundation for engine overhauls across a wide range of 1 Series Coupé/Cabrio and 3 Series sedan, wagon, coupé, and convertible models. Maintaining the original block architecture facilitates the installation of accessories, cylinder head, crankshaft and piston assembly, and other components of the factory engine.

Technical Characteristics of the Engine Block

The N54B30A cylinder block is designed as the load-bearing element of the entire powertrain, responsible for maintaining crankshaft alignment, piston operating stability, and proper cooling and lubrication. The design provided by BMW ensures:

• adequate body rigidity, crucial for the loads typical of a turbocharged engine,
• precise cylinder guidance, which translates to smooth operation and unit durability,
• factory layout of oil and cooling channels, simplifying the installation of standard accessories.

For workshops and tuners, this means the ability to recreate factory engine parameters or prepare a base for further modifications while maintaining compliance with the original BMW design.

Item Condition and Service Application

The offered block belongs to the group of used BMW engine blocks, making it an attractive alternative to new casings available through authorized channels. This type of part is particularly useful in situations where the existing block has suffered mechanical or thermal damage (e.g., cracks, seizures, bore deformations) and repair is not economically justified.

In workshop practice, such a block is used as a base for:

• comprehensive overhaul of the N54B30A engine,
• transferring a functional accessory and crankshaft and piston assembly to another casing,
• building a replacement unit while preserving original BMW design solutions.

Benefits of Choosing an Original BMW Block

Choosing an original BMW cylinder block for the N54B30A allows for the preservation of factory mounting points, correct dimensional tolerances, and compatibility with standard components. For the user, this means:

• easier installation compared to aftermarket alternatives of uncertain origin,
• maintaining the engine's operating characteristics as intended by the manufacturer,
• possibility of further service according to BMW documentation.

This solution is particularly valued by workshops specializing in the BMW brand and by users who want to maintain their car in a configuration close to the factory standard.

BMW Engine Blocks – Related Offers and Technical Knowledge

If you are looking for other BMW engine blocks for different models or engine variants, check out our dedicated category BMW engine blocks, where you will find a wide selection of original casings for many series and generations.

During comprehensive powertrain repairs, the topic of exhaust gas emission control systems often arises. It is then worth reading the article on our blog EGR: What it is and why it's worth considering used EGR valves, which explains the role of exhaust gas recirculation in modern engines in an accessible way and helps to better plan the scope of service work.