Audi A8/S8 Transmission Cross Support Bracket 4E0399403B
OEM Part #: 4E0-399-403-B (4E0399403B)
This page covers one exact OEM part number. Every unit we stocked has sold.
We may be able to get another
Used OEM parts are one-of-a-kind. We sometimes get another when we dismantle a matching vehicle, but we can’t say when — browse what’s in stock now:
Other Transmission Mount Bracket that may fit your vehicle
Transmission Cross Frame / Mount Bracket
$15.63
Fits 2004–2010 Audi A8 / S8
OEM: 4E0399231N
Transmission Mount Bracket
$13.71
Fits 2007–2009 Audi A8 / S8
OEM: 4E0399114BF
Transmission Mount Bracket
$22.99
Fits 2004–2009 Audi A8 / S8
OEM: 4E0399113AA
Transmission Mount Bracket
Starting at $18.49
Fits 2007–2010 Audi A8
OEM: 4E0399114AQ
Transmission Mount Bracket
$13.71
Fits 2004–2006 Audi A8
OEM: 4E0399114AF
Transmission Mount Bracket
$13.71
Fits 2004–2006 Audi A8
OEM: 4E0399113AE
- Genuine OEM — real photos
- 30-day returns on eligible parts
- eBay Top Rated · 100,000+ positive ratings
- Ships from our own indoor warehouse
Specifications
| Fits Vehicle Model | A8, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4E0-399-403-B (4E0399403B) |
| Category | Transmission |
Compatible Vehicles
Fits 21 vehicle configurations across 1 make, 2004-2010.
Check your specific vehicle before ordering.
This list shows year, make, and model. Some years have multiple trims or
engines that use different parts, and individual listings may have
additional fitment notes (e.g. “with sunroof only”). Review
the full variant list below, or
message us with your VIN
and we’ll confirm the match.
View all 21 vehicle configurations — 21 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2004 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) GQF, HHV, HKT |
| 2005 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) GQF, HHV, HKT |
| 2005 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) GQF, HHV, HKT |
| 2005 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKV, HLM, JBU, JNJ, JYZ |
| 2006 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles Where Last 6 Digits of VIN Number are Less Than 030000; For Vehicles with Transmission Code(s) GQF, HHV, HKT |
| 2006 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles Where Last 6 Digits of VIN Number are Less Than 030000; For Vehicles with Transmission Code(s) GQF, HHV, HKT |
| 2006 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKV, HLM, JBU, JNJ, JYZ |
| 2007 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM |
| 2007 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM |
| 2007 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKV, HLM, JBU, JNJ, JYZ |
| 2007 | Audi | S8 | Sedan | 5.2L V10 | For Automatic Transmission; For Vehicles with Transmission Code(s) JLM, KLW |
| 2008 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM, KZE, LWJ |
| 2008 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM, KZE, LWJ |
| 2008 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Automatic Transmission; For Vehicles with Transmission Code(s) JYZ, KZL |
| 2008 | Audi | S8 | Sedan | 5.2L V10 | For Automatic Transmission; For Vehicles with Transmission Code(s) KLW, KZK |
| 2009 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM, KZE, LWJ |
| 2009 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM, KZE, LWJ |
| 2009 | Audi | A8 | Quattro L Sedan | 6.0L W12 | For Automatic Transmission; For Vehicles with Transmission Code(s) JYZ, KZL |
| 2009 | Audi | S8 | Sedan | 5.2L V10 | For Automatic Transmission; For Vehicles with Transmission Code(s) KLW, KZK |
| 2010 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM, KZE, LWJ |
| 2010 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission; For Vehicles with Transmission Code(s) HKM, KZE, LWJ |