2007-2015 Audi Q7 Bumper Reinforcement / Trailer Hitch Kit Rear 4L0803921M
OEM Part #: 4L0-803-921-M (4L0803921M)
This page covers one exact OEM part number. Every unit we stocked has sold.
Programming required: this module must be coded to your VIN by a dealer or with the proper diagnostic tool before it will work.
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 Tow / Trailer Hitch / Trailer Control Module that may fit your vehicle
Bumper Reinforcement / Trailer Hitch Cap / Cover
$16.99
Fits 2004–2026 Audi, Porsche + more
OEM: 7L0803593
Bumper Reinforcement / Trailer Hitch Kit
$699.00
Fits 2007–2015 Audi Q7
OEM: 4L0803921F
Bumper Reinforcement / Trailer Hitch Kit
Starting at $581.00
Fits 2007–2015 Audi Q7
OEM: 4L0803921F
Trailer / Tow Hitch Cover
$119.99
Fits 2010–2015 Audi Q7
Platinum Grey
OEM: 4L0807819M
Trailer / Tow Hitch Cover
$159.99
Fits 2010–2015 Audi Q7
OEM: 4L0807819H
Trailer Control Unit / Computer
$103.49
Fits 2005–2007 Audi A8 / Q7 / S8
OEM: 4E0907383C
- Genuine OEM — real photos
- 30-day returns on eligible parts
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- Ships from our own indoor warehouse
Specifications
| Fits Vehicle Model | Q7 |
| Fits Vehicle Make | Audi |
| OEM Part No | 4L0-803-921-M (4L0803921M) |
| Compatible OEM Part No | 4L0-803-921-F, 4L0-803-921-B |
| Side | Rear |
| Category | Other |
Compatible Vehicles
Fits 20 vehicle configurations across 1 make, 2007-2015.
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 20 vehicle configurations
| Year | Make | Model | Trim | Engine | Note |
|---|---|---|---|---|---|
| 2007 | Audi | Q7 | SUV | 3.6L V6 | |
| 2007 | Audi | Q7 | SUV | 4.2L V8 | |
| 2008 | Audi | Q7 | SUV | 3.6L V6 | |
| 2008 | Audi | Q7 | SUV | 4.2L V8 | |
| 2009 | Audi | Q7 | SUV | 3.6L V6 | |
| 2009 | Audi | Q7 | SUV | 4.2L V8 | |
| 2009 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2010 | Audi | Q7 | SUV | 3.6L V6 | |
| 2010 | Audi | Q7 | SUV | 4.2L V8 | |
| 2010 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2011 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2011 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2012 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2012 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2013 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2013 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2014 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2014 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo | |
| 2015 | Audi | Q7 | SUV | 3.0L V6 Supercharged | |
| 2015 | Audi | Q7 | SUV | 3.0L V6 Diesel Turbo |