BMW 3 Series E46 Radiator Bracket Mounting Holder Plate Expansion Tank 1436250

BMW 3 Series E46 Radiator Bracket Mounting Holder Plate Expansion Tank is an original mounting component designed for the stable seating of the expansion tank in the engine bay. The precise geometry of the bracket ensures proper support for the tank, which promotes safe operation of the cooling system and reduces the risk of unwanted vibrations. This is a practical solution for BMW users looking for a proven, factory-spec mount instead of random aftermarket replacements.

Specifications and technical data

• SKU: 1436250
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 1436250
• Substitutable numbers: 17111436250, 1436250, KZ
• Category: Caps

Purpose and function of the bracket

The expansion tank mounting bracket in the BMW E46 is responsible for stably holding the tank in the position designed by the manufacturer. A correctly selected component:

• maintains the tank in the axis intended by the body design,
• limits the transmission of vibrations from the body to the tank,
• prevents excessive stress on the coolant hose connectors and lines,
• facilitates service and fluid level checks thanks to repeatable positioning.

As a result, the cooling system maintains stable operating conditions, and the risk of leaks resulting from improper tank support is significantly reduced.

Construction and fitment for BMW

The offered bracket comes from the group of original BMW components, which translates into compatibility with the factory mounting points in the E46 body. The shape, mounting hole spacing, and profile of the tank support surface are matched to the serial design, allowing for installation without the need for modifications.

In practice, this means:

• secure fitment with factory holes and clips,
• no need for custom adapters or additional brackets,
• preservation of the original routing geometry for coolant hoses.

Such a solution is particularly beneficial for repairs performed in accordance with BMW service documentation, where repeatability and compliance with design assumptions are paramount.

Use in service and restoration

The expansion tank mounting bracket is suitable for both standard repairs following mechanical damage and comprehensive engine bay restoration in a BMW E46. Replacing a worn or deformed component with an original bracket allows you to restore factory cooling system operating conditions and improve the overall aesthetics of the assembly.

This type of component is particularly useful when:

• the expansion tank was previously mounted provisionally,
• the bracket was damaged during a collision or disassembly,
• you are organizing the engine bay installation and want to return to OEM solutions.

By using a factory bracket, you minimize the risk of stress on the tank connectors and hoses, which in the long run translates into a lower probability of leaks.

Product condition and benefits of choosing a used part

The presented bracket is a used component, which represents a reasonable compromise between cost and maintaining the original BMW specification. In practice, a well-selected used part allows you to:

• maintain consistency with other factory components in the engine bay,
• preserve the original assembly line of the expansion tank,
• reduce expenses compared to new parts while maintaining OEM geometry.

This is a particularly attractive solution for maintenance repairs where functionality, correct fitment, and predictable long-term behavior are important.

Technical support and additional information

Before purchasing, it is worth comparing the bracket's design with the component currently installed in your BMW E46, paying attention to the shape, mounting points, and the way the tank is supported. If in doubt, checking the markings in the product's technical specification, where you will find information about the OEM part number and available interchangeable numbers, may also be helpful.

If you are planning a comprehensive repair or upgrade of the body area in your BMW and need other components from the same group, such as covers, trims, or additional moldings, check the available parts in the BMW Trims category.

For users interested in a broader context of selecting used components, including the impact of their condition on component performance, the guide article Stock vs. sports suspension – design differences and is it worth buying used suspension parts?, which discusses the practical aspects of choosing parts from the secondary market, may be helpful.