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GenuinePart #: N91008902
Genuine N91008902 Engine Water Pump Housing O-Ring
⚙️ 58 vehicles fit this part
Select your vehicle to confirm fitment
Verify this part fits before purchasing — free returns if it doesn't
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✅OE Direct Replacement — Bolt-on fit, no modifications needed
🚗Fitment: Audi and Volkswagen, R8, RS5, A8 Quattro, A6 Quattro, S5, S6, Q7, S4, S8, Touareg, and RS4
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Not what you need? Click here for all Engine Water Pump Housing O-Ring options
Reliable Engine Water Pump Housing O-Ring for Audi and Volkswagen
The Genuine Engine Water Pump Housing O-Ring (Part Number N91008902) is designed to provide a precise seal for the water pump housing in select Audi and Volkswagen models. This component ensures proper coolant flow and prevents leaks, maintaining engine performance and reliability.
- Compatible with Audi A6 Quattro, A8 Quattro, Q7, R8, RS4, RS5, S4, S5, S6, S8
- Also fits Volkswagen Touareg models
- Genuine part for exact OEM specifications
- Durable material engineered for high-temperature resistance
- Ensures a secure seal to prevent coolant leaks and overheating
Product Details and Compatibility
This Engine Water Pump Housing O-Ring, part number N91008902, is a genuine replacement part manufactured to meet the original equipment standards for Audi and Volkswagen vehicles. It is specifically compatible with a range of Audi models including the A6 Quattro, A8 Quattro, Q7, R8, RS4, RS5, S4, S5, S6, and S8, as well as the Volkswagen Touareg. The O-ring is critical for sealing the water pump housing, preventing coolant leaks that can lead to engine overheating or damage.
Common Applications and Problem Resolution
- Prevents coolant leaks from the water pump housing
- Eliminates engine overheating caused by seal failure
- Addresses coolant contamination issues due to improper sealing
- Helps maintain optimal engine temperature regulation
- Prevents premature water pump failure related to seal degradation
Installation Notes and Tips
- Ensure the water pump housing surface is clean and free of debris before installation
- Lubricate the O-ring lightly with coolant or appropriate lubricant to ease installation
- Inspect the water pump housing for any damage or warping prior to fitting the new O-ring
- Follow manufacturer torque specifications when reassembling components
- Replace the O-ring whenever the water pump housing is serviced to maintain proper sealing
Quality Assurance and Warranty
This Genuine Engine Water Pump Housing O-Ring (N91008902) is manufactured to meet strict OEM quality standards, ensuring reliable performance and durability. While specific warranty details may vary, genuine parts typically come with coverage against manufacturing defects. Using this genuine part helps maintain the integrity of your Audi or Volkswagen cooling system.
This part fits 58 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2015 | Audi | R8 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2015 | Audi | R8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2015 | Audi | RS5 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2014 | Audi | R8 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2014 | Audi | R8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2014 | Audi | RS5 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2013 | Audi | RS5 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2012 | Audi | A8 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2012 | Audi | R8 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2012 | Audi | R8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2011 | Audi | A6 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2011 | Audi | A8 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2011 | Audi | R8 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2011 | Audi | R8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2011 | Audi | S5 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2011 | Audi | S5 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2011 | Audi | S6 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2010 | Audi | A6 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2010 | Audi | A8 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2010 | Audi | Q7 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2010 | Audi | Q7 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2010 | Audi | R8 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2010 | Audi | S5 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2010 | Audi | S6 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | A6 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | A8 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | Q7 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | Q7 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2009 | Audi | R8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | S4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | S5 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | S6 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Audi | S8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2009 | Volkswagen | Touareg | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | A6 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | A8 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | Q7 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | Q7 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2008 | Audi | R8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | RS4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | S4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | S5 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | S6 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Audi | S8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Volkswagen | Touareg | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2008 | Volkswagen | Touareg | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2007 | Audi | A6 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2007 | Audi | A8 Quattro | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2007 | Audi | Q7 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2007 | Audi | Q7 | 4.2L | V8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
| 2007 | Audi | RS4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2007 | Audi | S4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2007 | Audi | S6 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2007 | Audi | S8 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2007 | Volkswagen | Touareg | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2006 | Audi | S4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2005 | Audi | S4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe | ||
| 2004 | Audi | S4 | N/A | 23 x 5mm O-Ring for Engine Water Pump Housing at Coolant Pipe |
* 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.