BMW 1 3 F20 F30 LCI M140i 340i B58 Engine Split Conrod Connecting Rod 7620971

BMW 1 3 F20 F30 LCI M140i 340i B58 Engine Split Conrod Connecting Rod is an original component from the Crankshafts group, designed for BMW B58 series engines used in models such as the F20 and F30. This used OEM part ensures factory geometry, appropriate durability, and proper fitment with the stock crankshaft and piston, facilitating professional engine repair.

Specifications and technical data

• SKU: 8623419
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 8623419
• Substitutable numbers: 11248623419, 8623419, 7620971, KZ
• Category: Crankshafts

Purpose and role in the BMW B58 engine

The connecting rod in the B58 engine is responsible for transferring force from the piston to the crankshaft, which is why its correct selection is crucial for the durability of the power unit. The BMW 1 3 F20 F30 LCI M140i 340i B58 Engine Split Conrod Connecting Rod has been designed for the specific loads and operating characteristics of these units, allowing for smooth operation, proper balance, and safety during dynamic driving.

Using an original component from the Crankshafts group reduces the risk of improper fitment, excessive vibrations, or accelerated wear of other components in the crank-piston system. This solution is particularly recommended for engine overhauls in M140i and 340i versions, where the engine operates under higher loads.

Benefits of using an original BMW connecting rod

Choosing this connecting rod primarily offers:

• Factory fitment to the crankshaft and piston in the B58 engine, which facilitates installation and adjustment of assembly clearances.
• Consistency with other components of the crank-piston system, which promotes stable engine operation.
• The possibility of use in professional BMW F20 and F30 engine overhauls, where compliance with service documentation is essential.
• Reduced risk of balancing issues that may occur when using aftermarket parts with different weight or geometry.

Thanks to this, the connecting rod provides a solid foundation for restoring engine performance, both in daily use and during more dynamic operation.

Part condition and service application

The offered item is in used condition, which allows for economical repair while maintaining original BMW specifications. This type of solution is often chosen by specialized workshops dealing with B58 engine overhauls, where a combination of OEM quality and a reasonable service budget is important.

The connecting rod is suitable for:

• repairing a single cylinder after mechanical damage,
• partial regeneration of the crank-piston system,
• restoring the factory engine configuration after previous modifications.

Compatibility within the BMW Crankshafts group

The element belongs to the Crankshafts group, which means it works with other components of this engine section – the crankshaft, bearings, and pistons. By maintaining the original specification, it is possible to precisely match it to the existing system without the need for structural changes.

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 connecting rods, a crankshaft, or related crank-piston system components, check the available parts in the BMW Crankshafts category.

Technical support and service knowledge

When working on a power unit, it is worth using reliable technical knowledge and proven service procedures. For a better understanding of the relationships between mechanical elements and vehicle control and steering systems, an article describing the construction and operation of vehicle systems may be helpful – you can find it here: Steering system and power steering – how it works and what breaks?.

Summary

BMW 1 3 F20 F30 LCI M140i 340i B58 Engine Split Conrod Connecting Rod is a used, original component from the Crankshafts group, intended for professional repairs of BMW B58 family engines. It ensures factory fitment, consistency with other crank-piston system components, and allows for an economical, yet technically correct, engine regeneration.