BMW E81 E87 E90 F20 F21 F30 F31 Parking Brake Adjusting Screw

The BMW E60 E90 F20 Brake Shoe Spreader Bolt is an original BMW braking system component designed for use in the shoe mechanism. Thanks to its factory geometry and appropriately selected material hardness, it ensures stable shoe spreading and repeatable brake operation under typical usage conditions. This is a practical service solution for users who want to maintain a design consistent with the manufacturer's original specifications.

Specifications and technical data

• SKU: 6851438
• Mark: BMW (Genuine OE)
• Condition: Used
• OEM Part Number: 6851438
• Substitutable numbers: 34416851438, 6851438, 34411166245, 1166245, 34411160513, 1160513, EM
• Category: Other Brake Parts

Purpose and Function in the Braking System

The brake shoe spreader bolt is responsible for the correct positioning and spreading of the shoes within the brake assembly, which translates to braking effectiveness and even pad wear. In BMW E60, E90, and F20 series models, this component works with other drum-shoe brake components, maintaining the correct working clearance and stable shoe position relative to the drum or the disc with the integrated parking brake.

A well-chosen spreader bolt reduces the risk of uneven brake engagement, excessive pad wear, and undesirable noises during system operation. Replacing a worn component with an original BMW part restores the correct operating characteristics of the auxiliary or main brake, depending on the specific vehicle configuration.

Compatibility and Part Identification

The offered spreader bolt comes from the BMW parts group and is assigned to the Miscellaneous category, meaning it is a specialized component that complements the braking system and is not found in typical service kits. By being assigned to specific body series (E60, E90, F20), it can be used as a replacement for the factory-installed part, maintaining the original construction and working dimensions.

The product has a dedicated OEM part number and associated interchangeable numbers, which facilitates verification of compatibility with a specific vehicle version. Before purchasing, it is recommended to compare the structural solution used in your car with the offered component to ensure full compatibility with the specific caliper or shoe mechanism type.

Performance Characteristics and Benefits of Use

The BMW brake shoe spreader bolt is designed to maintain the original operating parameters of the system. Using an original component allows you to:

• maintain the parking or drum brake operating characteristics intended by the manufacturer,
• minimize the risk of uneven shoe wear,
• reduce the need for frequent working clearance adjustments,
• ensure correct interaction with other components of the brake mechanism.

For workshops and users who prioritize service in accordance with manufacturer documentation, using an original BMW spreader bolt is a beneficial solution that maintains the structural integrity of the entire system.

Item Condition and Service Application

The offered spreader bolt is a used part, making it an attractive cost alternative to new components while maintaining original BMW specifications. Such parts are frequently used in professional workshops specializing in BMW models, especially where precise fitment to the existing system and preservation of factory geometry are crucial.

Replacing the spreader bolt is recommended in situations where symptoms such as uneven parking brake holding, adjustment problems, or visible mechanical wear of the component occur. Using an original spreader bolt restores the correct operation of the mechanism without the need to interfere with other sub-assemblies.

Offer Supplement and Additional Materials

If you are looking for other components from the BMW Miscellaneous category for your car, check out our dedicated offer, where you will find a wide selection of complementary components: BMW Miscellaneous Parts.

To better understand the differences in the construction and performance of braking systems in higher-class cars, it is worth reading a material comparing RS sports versions with standard models, which discusses, among other things, the construction of brakes and chassis – you can find it here: Audi RS vs. Other Models – What Lies Under the Hood and Chassis?.