BMW F20 F21 F30 F31 F34 B47D20A Bare Engine Block Hosuing 8513982

BMW F20 F21 F30 F31 F34 B47D20A Bare Engine Block Hosuing is a factory component from the Engine blocks category, designed for professional repairs of diesel units in popular BMW 1 and 3 series models. The bare block base allows for precise rebuilding of the B47D20A engine using existing sub-assemblies, making it an attractive solution for workshops and conscious users looking for a technically matched component. By maintaining the original geometry and mounting points, the block provides a solid foundation for further repair work.

Specifications and technical data

• SKU: 8513982
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8513982
• Substitutable numbers: 8513982
• Part type: Engine Block
• Category: Engine Blocks

Application and compatibility

The presented block is intended for the B47D20A unit used in BMW F20, F21, F30, F31, and F34 models. The block's design ensures compatibility with factory mounting points for accessories, the cylinder head, the crankshaft-piston system, and the lubrication system, which facilitates the transfer of existing components from a damaged engine.

A bare engine block is a particularly beneficial solution in situations where only the base of the unit has been damaged (e.g., cracks, excessive cylinder bore wear), while the remaining elements are suitable for further use after verification and potential regeneration.

Structural characteristics of the block

As an item from the Engine blocks category, the product serves as the load-bearing foundation for the entire powertrain. It includes the housing with cylinder bores, oil and cooling channels, and mating surfaces for the cylinder head and oil pan. Maintaining the factory rigidity and geometry of the block is crucial for the proper operation of the crankshaft-piston system and the stability of cylinder pressures.

The bare configuration allows for individual selection of the degree of regeneration – from standard honing to more advanced machining processes, according to the requirements of a specific repair or tuning project. For workshops specializing in BMW engines, this is a flexible base for building a unit with parameters tailored to customer expectations.

Intended for repairs and tuning projects

The block is particularly useful for:

• overhauls of B47D20A units in BMW F20/F21/F30/F31/F34,
• repairs following mechanical damage to the engine housing,
• projects aimed at increasing unit durability through precise machining and component selection,
• building an engine to individual user requirements.

For those planning to improve performance based on the B47 unit, the block provides a solid starting point for further modifications, such as changing the accessory configuration or using reinforced internal components. In such cases, it is worth checking out practical tips on safe power boosting – you will find them in the article How to increase engine power: a practical guide to engine tuning using used parts.

Benefits of using an original BMW block

Using an original block from the BMW Engine blocks group allows you to maintain factory compatibility with accessories, the drivetrain, and body mounts. This minimizes the risk of assembly issues and facilitates subsequent service, as all reference points remain consistent with the manufacturer's documentation.

For extensive modernization projects in BMW cars, where you combine engine repair with vehicle retrofitting, the retrofit solutions described in the guide Retrofitting in VAG and BMW group cars: How to cheaply equip your car using used parts from higher versions? may also be helpful.

Expanding the powertrain and selecting other BMW engine blocks

If you are planning a comprehensive repair or modernization of the engine area in your BMW and need other elements from the same group, such as block housings, short block bases, or other block configurations for different units, check out the available parts in the BMW Engine blocks category.

Summary

BMW F20 F21 F30 F31 F34 B47D20A Bare Engine Block Hosuing is a technically matched base for rebuilding the powertrain in popular 1 and 3 series models. The bare construction allows for a flexible approach to the scope of regeneration and accessory configuration, while maintaining the factory geometry of the block promotes durability and stable engine operation after repair. This solution is aimed at workshops and users who prioritize compliance with BMW design and control over every stage of unit construction.