OVERVIEW
Genuine VW/Audi Outer Tie Rod Self-Locking Collar Nut
N-909-771-01 is an original M14 x 1.5 self-locking collar nut for assigned outer tie rod retaining joints. The threaded nut secures the joint at its specified mounting point, while its integral collar provides the seating surface required by the original assembly. The self-locking feature adds resistance to loosening; correct installation still depends on the vehicle-specific tightening procedure and sound mating hardware. One individual nut is supplied.
Technical details
- OEM number: N-909-771-01 / N90977101.
- Thread: M14 x 1.5 mm.
- Form: Hexagonal self-locking collar nut.
- Assigned application: Outer tie rod retention at the mounting point shown for this OEM number.
- Supply: One nut; tie rods, joint studs, steering knuckles and other fasteners are separate.
Common reasons to replace
Renewal may be required during tie rod or steering joint service, or when the original nut has damaged threads, a rounded hexagon, corrosion at the seating face or a damaged locking feature. Missing or incorrectly fitted hardware also requires attention. Inspect the mating stud and mounting joint before installation: a new nut cannot correct worn joint internals, damaged stud threads or a damaged mounting seat. Steering looseness or a knock should be diagnosed at the assembly level so the actual worn component is repaired.
Installation and service notes
Confirm the original part number and retaining location before ordering. Follow the vehicle repair manual for joint removal, thread condition, hardware renewal and tightening sequence. Renew self-locking hardware whenever the applicable procedure calls for it. Start the nut correctly on the matching stud and verify that the seating faces are clean and undamaged. Do not guess the torque from the thread size or reuse a damaged locking feature. After steering work, complete all prescribed checks and any required wheel alignment. This nut should not be substituted for a tie rod toe-adjustment nut or another nearby fastener merely because it appears similar.
Vehicle fitment
The confirmed profiles below apply to the original outer tie rod retaining location that specifies N90977101. Match the VIN, steering assembly and original hardware; the same vehicle contains other nuts with different dimensions and functions.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi Q7 | 2011 | 3.0L supercharged gasoline V6 | Premium / Premium Plus; quattro; 4L; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
| Audi Q7 | 2012 | 3.0L supercharged gasoline V6 | Prestige; quattro; 4L; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
| Audi Q7 | 2013 | 3.0L supercharged gasoline V6 | Prestige; quattro; 4L; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
| Audi Q7 | 2012 | 3.0L turbo diesel V6 | TDI Prestige; quattro; 4L; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
| Audi Q7 | 2014 | 3.0L turbo diesel V6 | TDI Prestige; quattro; 4L; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
| Volkswagen Touareg | 2012 | 3.6L gasoline V6 | V6 Sport / V6 Lux / V6 Executive; 4Motion; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
| Volkswagen Touareg | 2012 | 3.0L supercharged gasoline V6 / electric hybrid | Hybrid; 4Motion; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
| Volkswagen Touareg | 2012 | 3.0L turbo diesel V6 | TDI Lux / TDI Executive; 4Motion; Match original steering assembly | Outer tie rod retaining nut at the original mounting point specifying N90977101; confirm by VIN and original hardware. |
Confirm N90977101 and the original steering joint position by VIN before ordering.