| Height () | 83 |
| Inner diameter 1 (mm) | 20 |
| Inner diameter 2 (mm) | 75 |
| Per axle | 2 |
| Bellows material | rubber |
Expresslevering
| Manufacturer | Model | Version | Engine code | Construction type | Construction start | Construction end | Pk | Power kw |
| Manufacturer | Productnumber |
| SEAT | 321 407 285B , 321407285B |
| SEAT | 321 407 285D , 321407285D |
| SEAT | ZBA 407 285 , ZBA407285 |
| VW | 321 407 285B , 321407285B |
| VW | 321 407 285D , 321407285D |
| VW | ZBA 407 285 , ZBA407285 |
| SKODA | 321 407 285B , 321407285B |
| SKODA | 321 407 285D , 321407285D |
| SKODA | ZBA 407 285 , ZBA407285 |
| AUDI | 321 407 285B , 321407285B |
| AUDI | 321 407 285D , 321407285D |
| AUDI | ZBA 407 285 , ZBA407285 |
| CUPRA | 321 407 285B , 321407285B |
| CUPRA | 321 407 285D , 321407285D |
| CUPRA | ZBA 407 285 , ZBA407285 |
| PORSCHE | 321 407 285B , 321407285B |
| PORSCHE | 321 407 285D , 321407285D |
| PORSCHE | ZBA 407 285 , ZBA407285 |
| VAG | 321 407 285B , 321407285B |
| VAG | 321 407 285D , 321407285D |
| VAG | ZBA 407 285 , ZBA407285 |
| Usage numbers |
| 103 392 001 |
| HP103 392 |
| 4063926061070 |
| 4063926249867 |
| 4073040000015 |
| FE103392 |
The Bellow, drive shaft (103 392) seals and protects the CV joint from grease loss and contamination. Replacing a damaged boot with Porza quality prevents joint failure and restores smooth drivetrain operation.
A bellow for a drive shaft, commonly known as a CV boot, is a flexible rubber or plastic cover that protects the constant velocity (CV) joint. Its function is to keep grease inside the joint while preventing dirt, water, and debris from entering. This ensures proper lubrication and extends the lifespan of the drive shaft joint.
Key specifications include inner and outer diameter, length, material type, and compatibility with the specific CV joint. Bellows are typically made from durable rubber or thermoplastic materials that can withstand constant flexing, exposure to grease, and temperatures ranging from -40°C to +120°C. High resistance to cracking and wear is essential for long-term performance.
Replacement is necessary when the bellow is cracked, torn, or leaking grease. Common signs include visible damage, grease splatter around the wheel area, or clicking noises from the CV joint due to contamination. Replacing a damaged bellow early can prevent costly joint failure.
Porza offers a fit guarantee option where your vehicle details, such as license plate or VIN, are checked against product specifications. This ensures the bellow matches the correct dimensions and joint type for your drive shaft system.
Porza supplies high-quality drivetrain and protective components with fast delivery across Europe. Customers can order online or choose in-store pickup in the Netherlands, Germany, or Belgium. This allows quick and reliable maintenance for both professional workshops and individual users.
If you select the fit guarantee, Porza verifies compatibility before shipment. If the product does not fit or meet expectations, it can be returned according to the return policy. This ensures a reliable and risk-free purchasing experience.