| Centering diameter (mm) | 39.8 |
| Inner brake drum diameter (mm) | 200 |
| Rim (-Hole) | 4 |
| Inner brake drum height (mm) | 35 |
| Max. brake drum reboring dimension (mm) | 201 |
| Total brake drum height (mm) | 84 |
Expresslevering
The Brake Drum (7D0139) delivers reliable braking performance by providing a stable friction surface for the brake shoes. Replacing the brake drums on time ensures smooth braking, prevents vibrations, and maintains safe stopping power.
With Porza’s smart search, you can quickly find the correct brake drum for your vehicle using your license plate, VIN, or detailed vehicle information. Trust Porza for quality parts, fast delivery, and dependable service.
A brake drum is a cylindrical braking component mounted on the wheel hub, primarily used in drum brake systems. Inside the drum, brake shoes expand outward against the inner surface when the brake is applied, creating friction that slows or stops the vehicle. Brake drums are commonly made from cast iron due to its strength and heat absorption properties.
Key specifications include inner diameter, maximum allowable diameter after wear, drum width, number of bolt holes, pitch circle diameter (PCD), and overall height. It is important to stay within the maximum diameter tolerance, as excessive wear reduces braking efficiency and safety.
A brake drum should be replaced when the internal diameter exceeds the manufacturer’s maximum limit, or if there are signs of cracking, scoring, overheating, or excessive corrosion. Regular inspection is essential, especially during brake shoe replacement.
High-quality brake drums provide better heat dissipation, reduced distortion under load, longer service life, and consistent braking performance. Precision machining also ensures smoother operation and reduced vibration.
Porza offers a fit guarantee option where your vehicle details are checked against technical specifications such as dimensions and mounting configuration. This ensures 100% compatibility and reduces the risk of ordering incorrect parts.
Porza offers a wide range of brake components with fast shipping across Europe. Customers can order online or choose in-store pickup in the Netherlands, Germany, and Belgium. If the product does not fit, it can be returned according to the return policy, ensuring a reliable and risk-free purchase.