2012-2018 Audi Transmission Brace / Mount Bracket 4H0399345Q
OEM Part #: 4H0-399-345-Q (4H0399345Q)
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The exact part you’ll receive — not a stock photo.
$79.99
Used
Donor2014 Audi S6 · 4.0L
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Genuine OEM Used
SKU: 698466
Donor Vehicle: 2014 Audi S6 · 4.0L
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$79.99
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Used Audi transmission brace / mount bracket, OEM part number 4H0399345Q, also replaces 4H0399345P and 4H0399345M. This bracket secures the transmission to the subframe, reducing driveline vibration and preventing excessive movement under load. When the mount fails, you may notice clunking during shifts or a loose feeling in the drivetrain.
Specifications
| Fits Vehicle Model | A6, A7, A8, RS7, S6, S7 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4H0-399-345-Q (4H0399345Q) |
| Compatible OEM Part No | 4H0-399-345-P, 4H0-399-345-M |
| Category | Transmission |
Compatible Vehicles
Fits 62 vehicle configurations across 1 make, 2012-2018.
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 62 vehicle configurations — 47 with fitment notes
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2015 | Audi | A7 | Quattro Hatchback | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2015 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2015 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Automatic Transmission |
| 2015 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2014 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2013 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | |
| 2017 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2017 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2017 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2017 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2017 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Automatic Transmission |
| 2018 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2018 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Automatic Transmission |
| 2018 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2018 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2016 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2016 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Automatic Transmission |
| 2017 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Automatic Transmission |
| 2017 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2017 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2018 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2018 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2012 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission |
| 2014 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Automatic Transmission |
| 2018 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Automatic Transmission |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2018 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2014 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Automatic Transmission |
| 2014 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2014 | Audi | A7 | Quattro Hatchback | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2014 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission |
| 2014 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2012 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2012 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2013 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2013 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Manual Transmission; For Automatic Transmission |
| 2013 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2014 | Audi | S7 | Hatchback | 4.0L V8 Turbo | |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2014 | Audi | A8 | Quattro L Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2016 | Audi | S6 | Sedan | 4.0L V8 Turbo | |
| 2016 | Audi | A7 | Quattro Hatchback | 3.0L V6 Supercharged | For Automatic Transmission |
| 2016 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2016 | Audi | A6 | Quattro Sedan | 2.0L l4 Turbo | For Automatic Transmission |
| 2016 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2016 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2015 | Audi | RS7 | Hatchback | 4.0L V8 Turbo | For Automatic Transmission |
| 2015 | Audi | A6 | Quattro Sedan | 3.0L V6 Diesel Turbo | For Automatic Transmission |
| 2015 | Audi | A6 | Sedan | 2.0L l4 Turbo | For Manual Transmission; 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 | S6 | Sedan | 4.0L V8 Turbo | |
| 2015 | Audi | A6 | Quattro Sedan | 3.0L V6 Supercharged | For Automatic Transmission |
| 2015 | Audi | A8 | Quattro L Sedan | 3.0L V6 Supercharged | For Automatic Transmission |