OE Quality
60-Day Returns

Elring 721.990 Engine Crankcase Half Gasket
Elring Upper Crankcase Half Gasket for Audi V8 Engines
Elring 721.990 is an upper engine crankcase half gasket for select Audi performance and luxury models. It is built for applications that require a precise sealing surface at the upper crankcase half, helping maintain proper engine sealing on vehicles such as the Audi A8 Quattro, RS7, S6, S7, and S8.
Key Features
- Upper fitting position for the engine crankcase half
- Elring sealing component for engine gasket service
- Direct-fit application for select 2013-2018 Audi models
- Cross-reference part number: 079 103 161 Q
- Part number: 721.990
Detailed Description
This Elring crankcase half gasket is used at the upper section of the engine crankcase to restore a reliable seal between mating engine surfaces. It is a fitment-based replacement for select Audi A8 Quattro, RS7, S6, S7, and S8 models from 2013 through 2018, making it a relevant choice for owners searching for an upper crankcase half gasket for Audi V8 engine sealing service. The Elring 721.990 part number is also useful when cross-checking OE-style references during engine repair planning.
What It Helps Address
- Oil seepage at the upper crankcase half
- Loss of sealing integrity between engine case surfaces
- Leak-related maintenance on Audi engine assemblies
- Replacement of a worn or damaged crankcase gasket during teardown
Installation Notes and Tips
Install only on the confirmed upper crankcase position. Clean and inspect the mating surfaces carefully before assembly, and verify the engine application against the vehicle’s OE reference and service information. For fitment confirmation, this part fits 2013-2018 Audi A8 Quattro, 2014-2018 Audi RS7, 2013-2018 Audi S6, 2013-2018 Audi S7, and 2013-2018 Audi S8.
Quality Assurance
Elring is a recognized name in engine sealing systems, and this gasket is cataloged for direct application matching on the listed Audi models. Part number 721.990 should be verified against the vehicle’s OE cross-reference 079 103 161 Q before installation.
| Brand | Elring |
|---|---|
| Part Number | 721.990 |
| Fitting Position | Upper |
This part fits 30 vehicles. Search below:
| Year | Make | Model | Drive Type | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|
| 2018 | Audi | A8 Quattro | 4.0L | V8 | N/A | |||
| 2018 | Audi | RS7 | 4.0L | V8 | N/A | |||
| 2018 | Audi | S6 | 4.0L | V8 | N/A | |||
| 2018 | Audi | S7 | 4.0L | V8 | N/A | |||
| 2018 | Audi | S8 | 4.0L | V8 | N/A | |||
| 2017 | Audi | A8 Quattro | 4.0L | V8 | N/A | |||
| 2017 | Audi | RS7 | 4.0L | V8 | N/A | |||
| 2017 | Audi | S6 | 4.0L | V8 | N/A | |||
| 2017 | Audi | S7 | 4.0L | V8 | N/A | |||
| 2017 | Audi | S8 | AWD | 4.0L | V8 | GAS | N/A | |
| 2017 | Audi | S8 | 4.0L | V8 | N/A | |||
| 2016 | Audi | A8 Quattro | 4.0L | V8 | N/A | |||
| 2016 | Audi | RS7 | 4.0L | V8 | N/A | |||
| 2016 | Audi | S6 | 4.0L | V8 | N/A | |||
| 2016 | Audi | S7 | 4.0L | V8 | N/A | |||
| 2016 | Audi | S8 | 4.0L | V8 | N/A | |||
| 2015 | Audi | A8 Quattro | 4.0L | V8 | N/A | |||
| 2015 | Audi | RS7 | 4.0L | V8 | N/A | |||
| 2015 | Audi | S6 | 4.0L | V8 | N/A | |||
| 2015 | Audi | S7 | 4.0L | V8 | N/A | |||
| 2015 | Audi | S8 | 4.0L | V8 | N/A | |||
| 2014 | Audi | A8 Quattro | 4.0L | V8 | N/A | |||
| 2014 | Audi | RS7 | 4.0L | V8 | N/A | |||
| 2014 | Audi | S6 | 4.0L | V8 | N/A | |||
| 2014 | Audi | S7 | 4.0L | V8 | N/A | |||
| 2014 | Audi | S8 | 4.0L | V8 | N/A | |||
| 2013 | Audi | A8 Quattro | 4.0L | V8 | N/A | |||
| 2013 | Audi | S6 | 4.0L | V8 | N/A | |||
| 2013 | Audi | S7 | 4.0L | V8 | N/A | |||
| 2013 | Audi | S8 | 4.0L | V8 | N/A |
* Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
This part directly replaces or is cross-referenced with the following part numbers:
Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.