OE Quality
60-Day Returns

Global Parts 2511235 Turbocharger
Reliable Turbocharger Replacement for Audi and Volkswagen Models
The Global Parts 2511235 turbocharger is engineered to restore optimal boost performance for select Audi and Volkswagen vehicles. Designed with durable cast iron construction and water-cooled center housing, this turbocharger supports efficient air and fuel delivery for models like the Audi A4, A4 Quattro, and Volkswagen Passat.
- Constructed from durable cast iron for long-lasting strength
- Water cooling center housing to maintain optimal operating temperatures
- Includes gasket and wastegate actuator for precise boost control
- Journal bearing type for reliable rotation and reduced wear
- Compatible with Audi A4, A4 Quattro, and Volkswagen Passat models
- Turbocharger model K03/K04, single turbo type
- Wastegate/blow-off valve operates via vacuum for effective pressure regulation
Technical Details and Performance Features
The Global Parts 2511235 turbocharger features a single turbo design with a K03/K04 model configuration, suitable for enhancing engine efficiency in compatible vehicles. Its cast iron material ensures structural integrity under high temperatures and pressures, while the uncoated finish allows for straightforward integration with existing engine components. The water-cooled center housing helps dissipate heat effectively, reducing thermal stress and extending turbocharger life. Equipped with a journal bearing system, this turbocharger offers smooth shaft rotation and durability. The included wastegate actuator starts at 0.450 bar, providing controlled boost pressure to optimize engine performance. Additionally, the package includes necessary gaskets to ensure a proper seal during installation.
Compatible Vehicles and Common Applications
- Replacement turbocharger for Audi A4 and A4 Quattro models requiring K03/K04 turbo units
- Suitable for Volkswagen Passat engines designed for single turbocharger setups
- Addresses issues such as reduced engine power due to worn or failing turbochargers
- Helps resolve excessive exhaust smoke caused by turbocharger inefficiency
- Restores proper boost pressure and improves throttle response
Installation Notes and Recommendations
When installing the Global Parts 2511235 turbocharger, ensure all old gaskets and seals are removed and replaced with the included gasket to prevent leaks. Since mounting hardware and brackets are not included, reuse existing components or source compatible parts separately. Verify that the wastegate actuator is properly connected to the vacuum system to maintain correct boost control. It is recommended to inspect related components such as oil lines and intercooler connections during installation to ensure optimal turbocharger performance.
Quality Assurance and Warranty Information
Global Parts manufactures the 2511235 turbocharger to meet regular grade standards, focusing on durability and consistent performance. The product includes a warranty that covers manufacturing defects, providing assurance of quality and reliability for Audi A4, A4 Quattro, and Volkswagen Passat owners seeking a dependable turbocharger replacement.
| Brand | Global Parts |
| Part Number | 2511235 |
| Material | Cast iron |
| Finish | Uncoated |
| Center Housing Cooling Type | Water cooling |
| Mounting Hardware Included | No |
| Grade Type | Regular |
| Gasket Or Seal Included | Yes |
| Bearing Type | Journal |
| Mounting Bracket Included | No |
| 9901 | No |
| Actuator Start Pressure | 0.450bar=6.1?8.0mm |
| Turbocharger Model Name | K03/ k04 |
| Turbocharger Type | Single |
| Wastegate Actuator Included | Yes |
| Wastegate/blow-off Valve | Vacuum |
This part fits 27 vehicles. Search below:
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2005 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2005 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2005 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2004 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2004 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2004 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2003 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2003 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2003 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2002 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2002 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2002 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2001 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2001 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2001 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2000 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2000 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 2000 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1999 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1999 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1999 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1998 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1998 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1998 | Volkswagen | Passat | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1997 | Audi | A4 | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
| 1997 | Audi | A4 Quattro | 1.8L | L4 | N/A | New Turbocharger; ***Must Change Engine Oil Prior to Installation*** |
* 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.