• N-911-451-01 Genuine VW/Audi transmission crossmember socket head bolt, internal multipoint head and threaded shank view, original product photo
  • N-911-451-01 Genuine VW/Audi transmission crossmember socket head bolt, threaded end and underside seating view, original product photo
  • N-911-451-01 Genuine VW/Audi transmission crossmember socket head bolt, side profile of bolt head and threads, original product photo
  • N-911-451-01 Genuine VW/Audi transmission crossmember socket head bolt, internal multipoint head and threaded shank view, repeated original gallery photo 4
  • N-911-451-01 Genuine VW/Audi transmission crossmember socket head bolt, threaded end and underside seating view, repeated original gallery photo 5
  • N-911-451-01 Genuine VW/Audi transmission crossmember socket head bolt, side profile of bolt head and threads, repeated original gallery photo 6
  • N-911-451-01 Genuine VW/Audi transmission crossmember socket head bolt, internal multipoint head and threaded shank view, repeated original gallery photo 7
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Genuine VW/Audi

N-911-451-01 Genuine VW/Audi Transmission Crossmember Socket Head Bolt

N-911-451-01 Genuine VW/Audi Transmission Crossmember Socket Head Bolt

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N-911-451-01

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OVERVIEW

Genuine Transmission Support Mounting Hardware

The N-911-451-01 Genuine VW/Audi socket head bolt provides the specified threaded fastener for the original transmission support-frame mounting position on the applications listed below. It is supplied as one individual bolt for service of the matched crossmember assembly.

Technical Details

  • OEM part number: N-911-451-01.
  • Thread diameter: M10.
  • Nominal bolt length: 40 mm.
  • Drive: internal multipoint socket.
  • Original product photographs show the bolt head, threaded shank and seating hardware.
  • Matched transmission catalog location: position 8 in illustration 399-077.
  • Listed transmission configuration: PR-G1G, eight-speed automatic for quattro.
  • Quantity supplied: one bolt. The matched diagram calls for four at this position; order the quantity needed for your repair.

Thread diameter and length alone do not establish interchangeability. The drive, head, seating arrangement and assigned catalog position must also match. Other bolts in the same transmission assembly can share an M10 × 40 mm nominal size while carrying different part numbers and serving a different position.

Common Reasons to Replace

  • The internal drive is rounded, cracked or damaged during removal.
  • Thread corrosion, cross-threading or damaged threads prevent dependable installation.
  • The original fastener is missing during transmission mount or support-frame service.
  • Previously installed hardware has an incorrect length, seating arrangement or part number.
  • The vehicle-specific repair procedure requires renewing the fastener after the joint is disturbed.

Inspect the mating threads, mounting surfaces and supporting components before assembly. A new bolt cannot correct a damaged threaded hole, cracked crossmember or worn transmission mount. Driveline vibration, knocks or movement should be diagnosed at the mount and surrounding components before selecting repair hardware.

Vehicle Fitment

These entries apply to the specified original transmission support position. Check the engine, gearbox, production date and original fastener together. The model-year listing does not cover every transmission or every build within that year.

Vehicle Model years Engine Configuration Application restrictions
Audi A5 2011 2.0L four-cylinder TFSI gasoline; PR-TG6 B8 Coupe, quattro, left-hand drive; 8-speed automatic; PR-G1G Transmission support-frame illustration 399-077, position 8. Original M10 × 40 mm internal multipoint bolt. Match original transmission support hardware; excludes S5, manual and front-wheel-drive configurations in this row.
Audi A4 allroad 2013 2.0L four-cylinder TFSI gasoline; PR-TL6 B8/8K allroad wagon, quattro, left-hand drive; 8-speed automatic; PR-G1G Original transmission support-frame position 8; PR-G1G 8-speed automatic and PR-TL6 2.0L gasoline. Production before October 7, 2013.
Audi A4 allroad 2014 2.0L four-cylinder TFSI gasoline; PR-TL6 B8/8K allroad wagon, quattro, left-hand drive; 8-speed automatic; PR-G1G Only vehicles built before October 7, 2013, with the original position-8 bolt. Factory catalog changes to N-912-097-01 from October 7, 2013; later builds excluded. Verify actual production date and original hardware.

Production Revision and Ordering Notes

For the listed allroad assembly, the original N-911-451-01 bolt is assigned before the October 7, 2013 production change. The catalog assigns N-912-097-01 from that change. This listing does not extend the earlier bolt to later vehicles on the basis of the newer part's application range. Vehicles built on the changeover date require a VIN-specific catalog check.

Installation Notes

Support the transmission and follow the vehicle-specific repair instructions before loosening the crossmember hardware. Match the original bolt and seating arrangement, start the threads correctly and use the specified tightening sequence and torque procedure. No universal torque, thread lubricant or additional washer arrangement is prescribed here.

Crossmembers, rubber mounts, gearbox supports and other fasteners are sold separately. The seven-image gallery uses three original archive photographs and repeats those originals to provide the requested gallery size. Repeated images show the same product and do not indicate that multiple bolts are included.