This ATE brake master cylinder adapter is a direct-fit replacement for Porsche applications listed in the fitment table below. ATE, a division of Continental AG, has been engineering hydraulic brake systems in Germany for over a century. An OEM supplier to manufacturers like Porsche AG, Mercedes-Benz, and Volvo, ATE produces factory-level rotors, pads, and hydraulic components built to strict European standards. Known for consistent pedal feel, proper fitment, and long service life, ATE remains a trusted choice for reliable, OE-quality braking performance.
Technical Details
- Manufacturer part number: 390393
- Type: Master cylinder brake line adapter (banjo fitting)
- Thread: M10 x 1.0 (commonly listed for this adapter)
- OE cross reference: 914.355.531.00 (commonly listed)
Fitment & Compatibility
Use the fitment table below to confirm year and model details. If you’re unsure on fitment, send us your VIN and we’ll help verify it.
We’ve been doing Porsche brake work for over 20 years, and we still treat fitment questions like they matter—because they do.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1965 | Porsche | 911 | ||
| 1966 | Porsche | 911 | ||
| 1967 | Porsche | 911 | ||
| 1968 | Porsche | 911 | ||
| 1969 | Porsche | 911 | ||
| 1970 | Porsche | 911 | ||
| 1971 | Porsche | 911 | ||
| 1972 | Porsche | 911 | ||
| 1973 | Porsche | 911 | ||
| 1974 | Porsche | 911 | ||
| 1975 | Porsche | 911 | ||
| 1976 | Porsche | 911 | ||
| 1965 | Porsche | 912 | ||
| 1966 | Porsche | 912 | ||
| 1967 | Porsche | 912 | ||
| 1968 | Porsche | 912 | ||
| 1969 | Porsche | 912 | ||
| 1976 | Porsche | 912 | ||
| 1970 | Porsche | 914 | ||
| 1971 | Porsche | 914 | ||
| 1972 | Porsche | 914 | ||
| 1973 | Porsche | 914 | ||
| 1974 | Porsche | 914 | ||
| 1975 | Porsche | 914 | ||
| 1976 | Porsche | 914 |