OVERVIEW
Genuine VW/Audi drive shaft bolt backing plate
803-407-357 is the individual two-hole backing plate, also cataloged as a spacer, used beneath the assigned drive-shaft flange fastening bolts. The confirmed applications below identify the original quattro propeller/cardan-shaft attachment arrangement.
The plate provides the prescribed bearing interface beneath the bolt heads at the matching joint. This listing supplies one plate, with the bolts, seals and shaft components selected separately.
Technical details and supplied quantity
- Manufacturer part number: 803-407-357; compact reference 803407357.
- Brand: Genuine VW/Audi.
- Component: drive-shaft flange bolt backing plate / spacer.
- Configuration: two bolt holes in the original curved plate profile.
- Quantity: one individual plate per purchase.
The original six-bolt end arrangements commonly use three plates at each end. Check the exact assembly and the scope of the repair before ordering a quantity. Do not replace a specified backing plate with ordinary individual washers or assume that a different shaft flange uses the same hardware.
Common reasons to replace
- The plate is missing during a flange or shaft repair.
- The original plate is bent or has damaged bolt-bearing surfaces.
- A bolt hole or plate profile is damaged.
- Corrosion or other deterioration prevents reuse under the applicable service procedure.
Inspect the bolts, joint face and receiving flange as well. A damaged flange, incorrect bolt or defective joint requires its own repair. The backing plate does not replace a shaft seal or correct a driveline vibration caused by another component.
Vehicle fitment
Fitment requires the original quattro propeller-shaft flange arrangement assigned 803407357. Confirm the installed shaft and joint hardware before ordering.
| Vehicle | Model years | Engine | Configuration | Application restrictions |
|---|---|---|---|---|
| Audi A4 | 1997–2001 | 1.8L turbocharged gasoline I4 | B5 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A4 | 1996–2001 | 2.8L gasoline V6; original 12-valve or 30-valve engine by model year | B5 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A4 Avant | 1998–2001 | 2.8L gasoline V6 | B5 Wagon; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A4 Avant | 1999–2001 | 1.8L turbocharged gasoline I4 | B5 Wagon; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S4 | 2000–2002 | 2.7L twin-turbocharged gasoline V6 | B5 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S4 Avant | 2001–2002 | 2.7L twin-turbocharged gasoline V6 | B5 Wagon; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A4 | 2002–2005 | 1.8L turbocharged gasoline I4 or 3.0L gasoline V6 | B6 Sedan; quattro; 2005 early body only, through 8E-5-400000; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A4 Avant | 2002–2005 | 1.8L turbocharged gasoline I4 or 3.0L gasoline V6 | B6 Wagon; quattro; 2005 early body only, through 8E-5-400000; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S4 | 2004–2005 | 4.2L gasoline V8 | B6 Sedan or Avant; quattro; 2005 early body only, through 8E-5-400000; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A4 | 2005–2008 | 2.0L turbocharged TFSI gasoline I4 or 3.2L FSI gasoline V6 | B7 Sedan or Avant; quattro; 2005 facelift VIN from 8E-5-400001; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S4 | 2005–2008 | 4.2L gasoline V8 | B7 Sedan or Avant; quattro; 2005 facelift VIN from 8E-5-400001; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A4 Cabriolet | 2007–2009 | 2.0L turbocharged TFSI gasoline I4 or 3.2L FSI gasoline V6 | B7 Convertible; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S4 Cabriolet | 2007–2009 | 4.2L gasoline V8 | B7 Convertible; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi RS4 | 2007–2008 | 4.2L FSI gasoline V8 | B7 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi RS4 Cabriolet | 2008 | 4.2L FSI gasoline V8 | B7 Convertible; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A6 | 1998–2001 | 2.8L gasoline V6 | C5 Sedan or Avant; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A6 | 2002–2004 | 3.0L gasoline V6 | C5 Sedan or Avant; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A6 | 2000–2004 | 2.7L twin-turbocharged gasoline V6 | C5 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A6 | 2000–2004 | 4.2L gasoline V8 | C5 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi allroad | 2001–2005 | 2.7L twin-turbocharged gasoline V6 | C5 Wagon; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi allroad | 2004–2005 | 4.2L gasoline V8 | C5 Wagon; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S6 Avant | 2002–2003 | 4.2L gasoline V8 | C5 Wagon; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi RS6 | 2003 | 4.2L twin-turbocharged gasoline V8 | C5 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A6 | 2005–2008 | 3.2L FSI gasoline V6 or 4.2L gasoline V8; original engine specification by model year | C6 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A6 Avant | 2006–2008 | 3.2L FSI gasoline V6 | C6 Wagon; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S6 | 2007–2011 | 5.2L FSI gasoline V10 | C6 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A8 | 1997–2003 | 4.2L gasoline V8 | D2 Sedan; quattro; standard or long wheelbase where assigned; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S8 | 2001–2003 | 4.2L gasoline V8 | D2 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A8 | 2004–2010 | 4.2L gasoline V8 | D3 Sedan; quattro; standard or long wheelbase where assigned; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi A8 L | 2005–2009 | 6.0L gasoline W12 | D3 Long-wheelbase Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
| Audi S8 | 2007–2009 | 5.2L FSI gasoline V10 | D3 Sedan; quattro; Original factory manual or automatic as offered; quattro propeller-shaft end arrangement determines fitment | Only the original propeller/cardan-shaft flange bolt-backing location assigned 803407357; all-wheel-drive PR 1X1 where specified. Match the original plate and joint arrangement. One two-hole plate supplied. Original six-bolt end arrangements commonly use three plates per end; order only the quantity specified for the exact repair. Bolts, seals and shaft are separate. |
Installation and service guidance
Follow the factory shaft-removal and flange-fastening procedure. Support the shaft as prescribed and record its original alignment before disturbing the joint. Inspect the mating faces and identify all separately required renewal parts.
Fit the plate in its assigned position beneath the matching pair of bolt heads. Use the exact specified bolts and apply the factory tightening sequence, torque and renewal requirements for that joint. Do not substitute an assumed torque value or mix hardware from another flange arrangement.
Confirm that every required plate and fastener is installed and that the shaft is correctly aligned and secured. Restore any disturbed guards and perform the prescribed drivetrain checks before returning the vehicle to service.