OVERVIEW
Genuine VW/Audi N-910-448-01 is an individual double-ended mounting stud with a central external hexagon. Its assigned applications include turbocharger oil-feed pipe retention and cooling-system pipe or bracket mounting, as detailed in the table below.
Technical details and contents
- Factory part number: N-910-448-01 / N91044801.
- Factory nominal designation: M6 × 14 / M6 × 14.
- Two threaded ends with a central hexagon drive.
- Quantity supplied: one stud.
- Oil/coolant pipes, mounting brackets, retaining nuts, seals and related assemblies are separate.
The factory designation describes the two functional threaded sections. It should not be interpreted as the overall packaged length. The central hexagon provides a drive surface for installation at the specified attachment.
Function and application
The stud provides the threaded mounting point for the assigned pipe or support bracket. Correct retention keeps that component positioned at its intended attachment. It is dry mounting hardware; separate seals perform the fluid-sealing function at the associated connections.
Use the factory pipe or bracket mounting assignment to select this stud. Similar double-ended hardware may have different threads, engagement lengths or drive features. Matching only the appearance or the nominal diameter does not establish that another stud is interchangeable.
Common reasons to replace
- The stud is missing after turbocharger or oil-line work.
- Either threaded section is damaged or cross-threaded.
- The center hexagon is rounded and cannot be engaged correctly.
- The stud is bent, corroded or no longer seats as intended.
- Replacement is required by the workshop procedure for the repair.
Inspect the receiving threads, pipe support and retaining hardware before assembly. A replacement stud cannot repair a cracked pipe, damaged sealing seat or a stripped mounting point. Diagnose an oil leak and replace the actual failed components rather than assuming that additional tightening will correct it.
Vehicle fitment
The table separates the confirmed engine and drive configurations. Match the factory engine PR code and the original pipe or cooling-system bracket diagram before ordering. The year and model name alone are insufficient for selecting this mounting point.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A3 | 2015 | 1.8L turbocharged gasoline inline-four | 8V Cabriolet; TA8; front-wheel drive; 6-speed S tronic DSG | Original turbocharger oil-feed pipe double stud, nominal M6 × 14 / M6 × 14. Match the indicated engine PR code and factory oil-pipe mounting point. Cabriolet only in this row. |
| Audi A3 | 2015 | 2.0L turbocharged gasoline inline-four | 8V Cabriolet; TT6; quattro; 6-speed S tronic DSG | Original turbocharger oil-feed pipe double stud, nominal M6 × 14 / M6 × 14. Match the indicated engine PR code and factory oil-pipe mounting point. Cabriolet only in this row. |
| Audi A3 | 2010–2013 | 2.0L TDI diesel inline-four | 8P Sportback; front-wheel drive; original coolant hose/pipe support; 6-speed S tronic DSG | Original coolant hose and connector-pipe support stud, position 8, requiring N91044801. Match original TJ3 cooling arrangement; no gasoline oil-feed application inferred. |
| Volkswagen Jetta SportWagen | 2010–2011 | 2.0L TDI diesel inline-four | Mk6 wagon; original coolant pipe support; 6-speed manual / 6-speed DSG; front-wheel drive | Original coolant-pipe stud point 9 assigned N91044801. Own catalog note: wagon, 2010–2011, 2.0L. Not a sedan assignment and not later wagon years. |
| Audi S8 | 2024–2025 | 4.0L twin-turbocharged gasoline V8; mild hybrid | D5 sedan; quattro; original cooling-system mounting bracket; 8-speed Tiptronic automatic | Original cooling-system mounting bracket stud specifying N91044801. Confirm exact bracket and hardware assignment; this dry stud is separate from the water pump, pipes, seals and coolant. |
| Audi RS Q8 | 2023–2025 | 4.0L twin-turbocharged gasoline V8; mild hybrid | 4M SUV; quattro; original cooling-system mounting bracket; 8-speed Tiptronic automatic | Original cooling-system mounting bracket stud specifying N91044801. Confirm exact bracket and hardware assignment; this dry stud is separate from the water pump, pipes, seals and coolant. |
| Audi SQ7 | 2024–2025 | 4.0L twin-turbocharged gasoline V8; mild hybrid | 4M SUV; quattro; original cooling-system mounting bracket; 8-speed Tiptronic automatic | Original cooling-system mounting bracket stud specifying N91044801. Confirm exact bracket and hardware assignment; this dry stud is separate from the water pump, pipes, seals and coolant. |
| Audi SQ8 | 2024–2025 | 4.0L twin-turbocharged gasoline V8; mild hybrid | 4M SUV; quattro; original cooling-system mounting bracket; 8-speed Tiptronic automatic | Original cooling-system mounting bracket stud specifying N91044801. Confirm exact bracket and hardware assignment; this dry stud is separate from the water pump, pipes, seals and coolant. |
| Audi RS6 Avant | 2023–2024 | 4.0L twin-turbocharged gasoline V8; mild hybrid | C8 wagon; quattro; original cooling-system mounting bracket; 8-speed Tiptronic automatic | Original cooling-system mounting bracket stud specifying N91044801. Confirm exact bracket and hardware assignment; this dry stud is separate from the water pump, pipes, seals and coolant. |
| Audi RS7 Sportback | 2023–2024 | 4.0L twin-turbocharged gasoline V8; mild hybrid | C8 Sportback; quattro; original cooling-system mounting bracket; 8-speed Tiptronic automatic | Original cooling-system mounting bracket stud specifying N91044801. Confirm exact bracket and hardware assignment; this dry stud is separate from the water pump, pipes, seals and coolant. |
Installation guidance
Follow the factory service procedure for the exact engine and mounting location. Allow the engine and associated systems to cool. For oil-feed pipe work, maintain cleanliness around open connections; for cooling-system work, observe the prescribed pressure-release and coolant service procedure.
Inspect both sets of mating threads and start the stud by hand. Keep the pipe or bracket aligned without forcing it into position with the retaining hardware. Use the correct tool on the central hexagon and follow the specified installation depth, torque and any renewal requirements for the connection.
Replace disturbed seals or other hardware when required by the repair procedure. Do not apply a generic torque based only on the M6 thread size; use the specification for this stud and its mating components. Complete the prescribed fluid-level, leak and operating checks for the system serviced.
Ordering information
This listing supplies one genuine stud. The retaining nut, oil-feed pipe, return line, O-rings, turbocharger and complete installation kit are not included. Confirm the quantity and associated service items for the planned repair.