2011-2018 Audi A8/S8 Subframe / Sub Frame Mount Bracket Right 4H0399656B
OEM Part #: 4H0-399-656-B (4H0399656B)
Actual photo
The exact part you’ll receive — not a stock photo.
$28.99
Side: Right
Used
Donor2015 Audi A8 · 4.0L
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Genuine OEM Used
SKU: 665438
Donor Vehicle: 2015 Audi A8 · 4.0L
3 photos
$28.99
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This genuine Audi subframe mount bracket (OEM 4H0399656B, also replaces 4H0399656A) is a used right-side unit from a donor vehicle. It secures the rear subframe to the body, maintaining proper suspension geometry and driveline alignment. Over time, a degraded mount bracket can cause clunking noises, vague handling, or uneven tire wear. Fits Audi A8 Quattro and S8 models equipped with 3.0L V6, 4.0L V8, 4.2L V8, or 6.3L W12 engines—both diesel and gas configurations.
Specifications
| Fits Vehicle Model | A8, S8 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H0-399-656-B (4H0399656B) |
| Compatible OEM Part No | 4H0-399-656-A |
| Side | Right |
| Category | Underbody |
Compatible Vehicles
Fits 36 vehicle configurations across 1 make, 2011-2018.
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 36 vehicle configurations — 36 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2016 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Automatic Transmission |
| 2016 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2017 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2017 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2017 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2018 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2018 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2018 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2016 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2011 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission |
| 2011 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission |
| 2012 | Audi | A8 | Quattro Sedan | 4.2L V8 | For Automatic Transmission |
| 2012 | Audi | A8 | Quattro L Sedan | 4.2L V8 | For Automatic Transmission |
| 2012 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Automatic Transmission |
| 2013 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2013 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Automatic Transmission |
| 2014 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2013 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2015 | Audi | S8 | Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2013 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2015 | Audi | A8 | Quattro Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2015 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2015 | Audi | A8 | Quattro L Sedan | 4.0L V8 Turbo | For Automatic Transmission |
| 2015 | Audi | A8 | Quattro L Sedan | 6.3L W12 | For Automatic Transmission |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |