BMW E90 Diesel Oil Filter Housing Cap 6740326119

BMW E90 Diesel Oil Filter Housing Cap is an original component from the Oil filters group, designed for BMW 3 Series E90 diesel engines. It ensures a tight seal for the oil filter housing, stabilizes the filter element, and helps maintain proper pressure in the diesel engine lubrication system.

Specifications and technical data

• SKU: 6740326119
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6740326119
• Substitutable numbers: 6740326119, 67 403 26 119
• Fuel type: Diesel
• Category: Oil Filters

Purpose and function in a diesel engine

The oil filter cap in a diesel engine is responsible for securely guiding lubricating oil through the filter element and maintaining the tightness of the entire housing. In BMW E90 diesel units, this is of particular importance, as the lubrication system operates under higher loads than in many gasoline engines. A properly selected cap minimizes the risk of leaks, pressure drops, and improper oil filtration.

Construction and fitment for BMW

The offered cap is a component intended for use in the BMW diesel engine lubrication system, with a design adapted to the factory oil filter housing. The properly shaped working part interacts with the filter element, and the threads and sealing surfaces are designed to ensure precise fitment with the filter body. As a result, installation is performed without the need for modifications, and the cap maintains the parameters required by the vehicle manufacturer.

Benefits of using an original oil filter cap

Using an oil filter cap dedicated to the BMW E90 with a diesel engine allows for maintaining stable operating conditions of the lubrication system. Key advantages include:

• maintaining the tightness of the oil filter housing under typical diesel engine loads,
• proper oil flow through the filter element,
• reducing the risk of leaks and engine compartment contamination,
• maintaining compliance with the factory BMW lubrication system design.

Thanks to this, the cap supports stable operation of the power unit, which is important for both engine durability and vehicle operational safety.

Condition, origin, and practical application

The item comes from disassembly and is offered as a used part, which is an attractive solution for drivers looking for an economical yet original alternative to replacements of unknown origin. The cap is suitable for standard service maintenance, oil filter replacement, or repair of the lubrication system in a BMW E90 diesel engine when the existing component is damaged, worn, or missing.

If you want to better understand how proper maintenance of oil-related systems affects the lifespan of the power unit, it is worth reading the blog article: Engine cooling system – overheating, repair, and used radiators, which discusses the relationship between operating temperature and engine durability.

BMW oil filters – expansion and modernization of the lubrication system

If you are planning a comprehensive repair or modernization of the lubrication system area in your BMW and need other components from the same group, such as housings, filter elements, or additional seals, check the available parts in the BMW oil filters category.

When choosing between a refurbished part and a used original, the following guide may also be helpful: Refurbished or used original – which part to choose for repairs?, which discusses the practical differences between these solutions in the context of real-world vehicle operation.