OVERVIEW
Genuine Turbocharger Mounting Bolt
The N-014-721-5 Genuine VW/Audi mounting bolt secures the original turbocharger to the exhaust manifold on the confirmed Audi 2.7T applications below. Its M10 thread diameter, 25 mm nominal length and socket-head design match the specified factory attachment point. This listing supplies one individual bolt; turbochargers, manifolds, gaskets and other hardware are separate.
Technical Details
- Original part number: N-014-721-5.
- Catalog size: M10 × 25 mm.
- Drive: internal hex socket.
- Function: original turbocharger-to-exhaust-manifold attachment.
- Quantity supplied: one bolt.
The nominal length is measured beneath the head. Correct length and head geometry allow the fastener to seat and clamp the original joint as designed. An M10 bolt of a different length can bottom out, leave insufficient thread engagement or interfere with the surrounding assembly. Use the complete OEM number when selecting replacement hardware.
Common Reasons to Replace
- The bolt has been removed during turbocharger or exhaust manifold service and replacement is specified by the repair procedure.
- The internal hex drive is rounded or damaged.
- The threads are corroded, damaged or no longer engage correctly.
- The bolt is missing or has been replaced by hardware of the wrong length.
- Damage was found while investigating movement or leakage at the turbocharger/manifold connection.
This attachment sits in a hot exhaust-side location. Repeated heat cycles and corrosion can make aged hardware difficult to remove. Inspect the mating threads and sealing interface during service; a replacement bolt cannot correct a cracked manifold, damaged turbocharger flange or stripped threaded bore.
Installation and Service Notes
Allow the exhaust components to cool and follow the vehicle-specific removal and installation procedure. Use a correctly fitting hex bit with full engagement to protect the drive recess. Inspect the original hardware layout and obtain the required number of bolts, seals and gaskets for the repair.
The listing is sold individually and is not a complete turbocharger installation kit. Determine the required quantity from the factory diagram for the side and assembly being serviced. Avoid transferring a torque value from another M10 fastener: tightening torque, sequence and any prescribed treatment must follow the exact turbocharger/manifold repair instructions.
Aftermarket turbochargers, replacement manifolds and modified flanges can require different fastening hardware. Confirm the attachment arrangement before ordering even when the vehicle appears in the table. No unsupported material grade, coating, thread pitch or shipping weight is assigned to this Genuine part.
Vehicle Fitment
The table covers confirmed original 2.7T turbocharger mounting applications. Match the model year, engine and factory assembly; other uses of this standard part remain subject to exact diagram confirmation.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi S4 | 2000–2002 | 2.7L twin-turbocharged V6 gasoline | B5; quattro; Manual or automatic; original turbocharger-to-manifold fastening arrangement | Original turbocharger-to-exhaust-manifold mounting bolt. Confirm the factory turbocharger/manifold arrangement; modified assemblies may use different hardware. |
| Audi A6 | 2000–2004 | 2.7L twin-turbocharged V6 gasoline | C5; quattro; Manual or automatic; original turbocharger-to-manifold fastening arrangement | Original turbocharger-to-exhaust-manifold mounting bolt. Confirm the factory turbocharger/manifold arrangement; modified assemblies may use different hardware. |
| Audi allroad | 2001–2005 | 2.7L twin-turbocharged V6 gasoline | C5; quattro; Manual or automatic; original turbocharger-to-manifold fastening arrangement | Original turbocharger-to-exhaust-manifold mounting bolt. Confirm the factory turbocharger/manifold arrangement; modified assemblies may use different hardware. |