OVERVIEW
Original threaded stud for the intake assembly
N-910-638-01 is a Genuine VW/Audi M6 x 62 threaded stud used at the specified original intake and fuel-rail assembly attachment. The confirmed applications below use the supercharged 3.0L V6 engine.
The stud maintains the intended fastening position and engagement for the original mounting arrangement. Its length and threaded ends must match the assigned location; it is not interchangeable with every M6 intake bolt or stud.
Technical details
- Complete factory number: N-910-638-01.
- Factory specification: M6 x 62 mm threaded pin.
- Design: Headless stud with threaded ends and an unthreaded center section.
- Quantity supplied: one individual stud; intake components, fuel rail, nuts, seals and other hardware are not included.
The nominal specification describes the stud size. No unverified threaded-end lengths, pitch, torque, weight or package dimensions are assigned.
Common reasons to replace
- Damaged threads that prevent the specified retaining nut or component from seating properly.
- A bent stud or damaged mounting section found during intake service.
- Missing hardware or an incorrect replacement length discovered during repair.
An intake leak, misfire or fuel-system fault requires diagnosis of the relevant seals, housings and operating components. A replacement stud alone does not repair a leaking seal or defective injector.
Vehicle fitment
Match the engine and original attachment in the table. Selected model years are listed only where the exact part-number entry was confirmed.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A6 | 2014 | 3.0L supercharged V6 gasoline | C7 sedan, quattro; 8-speed automatic | Original intake/fuel-rail assembly threaded-pin position specifying N-910-638-01; factory equipment A8U. Four cataloged studs; each sold separately. Not a high-pressure fuel connection. |
| Audi A7 | 2014 | 3.0L supercharged V6 gasoline | C7 Sportback, quattro; 8-speed automatic | Original intake/fuel-rail assembly threaded-pin position specifying N-910-638-01; factory equipment A8U. Four cataloged studs; each sold separately. Not a high-pressure fuel connection. |
| Audi S4 | 2014 | 3.0L supercharged V6 gasoline | B8 sedan, quattro; 6-speed manual or 7-speed S tronic | Original intake/fuel-rail assembly threaded-pin position specifying N-910-638-01; PR TC6 3.0L engine branch. Four cataloged studs; each sold separately. Not a high-pressure fuel connection. |
| Audi S5 Cabriolet | 2010, 2015 | 3.0L supercharged V6 gasoline | B8 convertible, quattro; 7-speed S tronic | Original intake/fuel-rail assembly threaded-pin position specifying N-910-638-01; 2010 factory equipment A8U; 2015 PR TC6 engine branch. Four cataloged studs; each sold separately. Not a high-pressure fuel connection. |
Installation guidance
Follow the engine-specific removal and installation procedure, including any required fuel-pressure relief. Protect open intake and fuel-system passages from contamination and preserve the specified stud seating depth.
Do not deform the working threads with gripping tools or force the stud into damaged receiving threads. Fit the correct remaining hardware, follow the tightening sequence and complete the prescribed leak and operational checks.
Ordering information
New and unused inventory. Supplied as one individual N-910-638-01 stud. Confirm the complete original number and the required quantity before ordering.