Mini Cooper R50 R52 R53 Engine W10 W11 Screw Plug With Gasket Ring Cylinder Head

Mini Cooper R50 R52 R53 Engine W10 W11 Screw Plug With Gasket Ring Cylinder Head is an original component from the Gaskets and sealing rings group, designed for diesel units in BMW vehicles. This precisely manufactured screw plug ensures a tight seal for the selected channel in the diesel engine cylinder head, which supports stable engine operating parameters and reduces the risk of leaks.

Specifications and technical data

• SKU: 1487189-1
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1487189
• Substitutable numbers: 11311487189, 1487189
• Fuel type: Diesel
• Category: Gaskets & Seals

Purpose and technical function

The cylinder head screw plug plays a key role in maintaining the tightness of the circulation system in a diesel engine, especially in areas where the manufacturer has provided for the closure of technological or service channels. In MINI R50, R52, and R53 models with a diesel unit, it is responsible for:

• stable sealing of the selected point in the cylinder head,
• reducing the loss of working medium (oil or fluid),
• maintaining the correct operating parameters of the lubrication or cooling system,
• safely transferring mechanical loads at the installation site.

Thanks to a design consistent with factory BMW standards, the component works with the thread and seat in the cylinder head without the need for modifications, which facilitates service and reduces the risk of leaks after installation.

Advantages of using the original screw plug

Using the original screw plug in a MINI R50/R52/R53 diesel engine allows for maintaining the factory geometry and connection characteristics. In practice, this means:

• secure fit to the cylinder head seat, without play or forced stresses,
• material compatibility with surrounding components, which reduces the risk of seizing or thread damage,
• easier disassembly during subsequent service operations,
• maintaining engine operating parameters at the level intended by the manufacturer.

This solution is particularly recommended for cylinder head repairs, seal replacements, or restoring tightness after previous unauthorized modifications.

Installation and operational characteristics

The cylinder head screw plug is a compact component, adapted to work in demanding thermal and pressure conditions typical for diesel engines. Proper installation includes:

• thorough cleaning of the seat and thread in the cylinder head,
• checking the condition of the contact surface,
• applying the appropriate tightening torque in accordance with BMW service documentation.

A connection prepared in this way minimizes the risk of micro-leaks, and thus leaks and pressure drops in the system. Maintaining proper tightness translates into stable operation of the diesel unit and a longer service life for cooperating components.

Component condition and use in service practice

The offered screw plug comes from disassembly and is intended for re-installation in MINI R50, R52, and R53 diesel engines where it is necessary to restore the factory cylinder head tightness. This is a solution often chosen by workshops specializing in the BMW brand and users who want to maintain consistency with the original vehicle specification while optimizing repair costs.

If you want to better understand how the availability of used OEM components affects vehicle downtime in the workshop and the repair budget, read the article: Availability of car parts off-the-shelf vs. repair time – how used OEM parts shorten workshop stays?.

Expanding the scope of service work

If you are planning a comprehensive repair or upgrade of the engine area in your BMW and need other components from the same group, such as additional gaskets, sealing rings, or elements for closing channels in the cylinder head, check the available parts in the BMW Gaskets and sealing rings category.