BMW 1 3 X3 Series E83 E87 E90 E91 N46 Crankcase Intake Breather Valve 7503519

BMW 1 3 X3 Series E83 E87 E90 E91 N46 Crankcase Intake Breather Valve is an original BMW powertrain component designed for vehicles with petrol engines. It is a practical solution for users who want to maintain the factory characteristics of the transmission and ensure stable drivetrain performance in their BMW.

Specifications and technical data

• SKU: 7503519-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 7503519
• Substitutable numbers: 7503519, 11617503520, 7503520, Vaico, V20-1115, 987062735, EM
• Fuel type: Petrol
• Category: Other Air & Fuel Delivery

Purpose and function of the BMW transmission valve

The presented transmission valve is a component of the transmission control system in 3 Series and X3 models equipped with petrol engines. It is responsible for precise management of the working medium flow within the transmission, which translates into predictable gear shifting, stable drivetrain operation, and a reduction in unwanted vibrations and jerking while driving.

By maintaining the original BMW design, the valve is matched to factory control parameters, which facilitates diagnostics, calibration, and subsequent vehicle maintenance.

Benefits of using an original transmission valve

Using an original transmission valve in BMW 3 Series and X3 cars with petrol engines allows for maintaining the consistency of the entire drivetrain. In practice, this means:

• preserving factory gear-shifting characteristics,
• better compatibility with existing transmission control unit software,
• easier adaptation after installation compared to aftermarket replacements,
• reducing the risk of improper transmission operation resulting from design differences.

For users who value predictable vehicle behavior and maintaining the original configuration, this component is a safe service choice.

Condition of the component and application in petrol vehicles

The offered transmission valve is a part from the Other category, meaning it belongs to a group of specialized components used in specific BMW drivetrain configurations. The product is used, which in practice allows for economical repair or replacement of the component while maintaining the manufacturer's original specifications.

Its intended use for petrol-powered systems ensures that the valve is adapted to the operating characteristics of BMW petrol engines – both in terms of RPM range and typical daily driving conditions.

Matching to a specific BMW vehicle

Before purchasing, it is worth verifying the compatibility of the valve with your specific BMW model, production year, and engine version. Data such as the product identifier, OEM part number, or replacement numbers, which can be compared with information in service catalogs or vehicle documentation, are helpful for this. This minimizes the risk of mismatch and ensures that the component will work with your existing drivetrain.

If necessary, you can use markings such as SKU, OEM part number, reference numbers, or brand markings, which are available in the product's technical specifications and facilitate unambiguous identification of the valve.

Service expansion and related BMW components

If you are planning a comprehensive repair or upgrade of the drivetrain area in your BMW and need other elements from the same group, such as additional control valves, auxiliary modules, or small mounting components, check the available parts in the Other BMW category.

When planning broader service work, it is also worth expanding your knowledge regarding the design differences between sports and standard versions of cars – in this regard, an article on our blog may be helpful: Audi RS vs other models – what is hidden under the hood and chassis?, which shows how manufacturers design drivetrains and braking systems in more heavily loaded model versions.

If you are interested in a broader perspective on selecting used components for popular makes and models, a practical supplement will also be the guide: The best used car parts – a guide to the most frequently chosen original parts, which helps in making informed choices when selecting components from the secondary market.