Description
BMW G20 G21 Vented Brake Disc Left Right Rear is an original part from the Brake Discs group, designed for the rear axle of modern BMW 3 Series G20/G21 models. The vented design ensures stable heat dissipation, and the dedicated placement on the left and right sides of the rear axle guarantees proper brake system operation.
Specifications and technical data
- SKU: 6877213
- Mark: BMW (Genuine OE)
- Condition: Used
- OEM Part Number: 6877213
- Substitutable numbers: 6877213, 34206877213
- Location on the vehicle: Rear, Right, Left
- Tire profile: 65535
- Category: Brake Disc Rotors
Vehicle Application and Placement
The presented brake disc is designed for installation on the rear axle of the vehicle, with the possibility of use on both the left and right sides. This fitment allows for maintaining the factory geometry of the BMW G20/G21 brake system and ensures even brake performance during daily driving and more intense driving.
The vented construction of the disc supports efficient cooling during braking, which reduces the risk of overheating and helps maintain consistent braking effectiveness in various road conditions.
Technical Specifications and Compatibility
The disc comes from the BMW OE line, which means maintaining factory operating parameters and full compatibility with the vehicle’s original brake system. The product has an assigned OEM part number and interchangeable numbers, allowing for precise verification of compatibility with a specific version of the BMW 3 Series G20/G21.
The tire profile parameter associated with this set allows the disc to be matched to the wheel configuration intended by the manufacturer, which is important for maintaining correct braking characteristics and the operation of assistance systems such as ABS or traction control.
Product Condition and Practical Application
The offered brake disc is in used condition, making it an attractive cost alternative to new parts, while maintaining original BMW specifications. This solution is particularly beneficial for accident repairs, fleet servicing, or restoring a car to full functionality within a controlled budget.
Due to its dedicated placement on the rear axle, the part is suitable for both replacing a single component and for comprehensive brake system servicing when discs need to be replaced on both sides of the vehicle.
Why Choose Original BMW Brake Discs
Choosing original BMW brake discs translates to:
- maintaining factory braking characteristics and interaction with the vehicle’s safety systems,
- certainty of fit with the hub, caliper, and other system components,
- consistency with other rear axle components, including pads and mounting hardware.
If you are planning a comprehensive repair or upgrade of the braking area in your BMW and need other parts from the same group, such as additional discs, compatible pads, or supplementary brake lines, check the available parts in the BMW Brake Discs category.
Safe Selection of Used Brake System Components
When choosing a used brake disc, it is crucial to pay attention to compatibility with the part number, axle type, and brake system configuration in a specific BMW G20/G21 model. It is also worth knowing the basic criteria for assessing the condition of brake components to ensure safe vehicle operation.
If you want to organize your knowledge about purchasing used discs, calipers, and ABS components, the article will be helpful: Second-hand brake system: how to safely choose discs, calipers, and ABS?, where you will find a practical checklist useful when selecting such components.
Summary
BMW G20 G21 Vented Brake Disc Left Right Rear is an original, vented component of the rear brake system, designed for installation on both sides of the axle. The used nature of the part allows for cost optimization of servicing while maintaining proper compatibility with the factory brake system of the BMW 3 Series G20/G21. It is a practical choice for drivers who expect consistency with manufacturer solutions and want to renew key driving safety components in a controlled manner.
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