This timing chain by Iwis is the upper center chain for W12 and W8 engines found in Audi A8, Volkswagen Phaeton, and Passat W8 models from 2002-2009. It ensures precise camshaft timing to prevent piston-to-valve contact. Made to OE specifications, it replaces OEM part number 07D109503A.
Key Features & Benefits
- OE Quality: Manufactured by Iwis, a German OE supplier of timing chains.
- Engine Coverage: Fits 6.0L W12 in Audi A8 and VW Phaeton, and 4.0L W8 in VW Passat.
- Direct Replacement: Replaces OEM part 07D109503A and Iwis 50046639.
- Prevents Catastrophic Failure: Timely replacement avoids severe engine damage.
Vehicle Fitment
| Make | Model | Years | Engine |
|---|---|---|---|
| Audi | A8 Quattro | 2005–2009 | 6.0W12 |
| Volkswagen | Phaeton | 2004–2006 | 6.0W12 |
| Volkswagen | Passat | 2002–2004 | 4.0W8 |
Technical Specifications
| Part Number | 07D109503A |
| OEM Part Number | 07D109503A |
| Iwis Part Number | 50046639 |
| Engine | 6.0L W12, 4.0L W8 |
| Position | Upper Center |
Installation Notes
Professional installation recommended due to the complexity of timing chain replacement on W12/W8 engines.
About IWIS
IWIS is a leading German manufacturer of timing drives and chains, supplying to major automotive OEMs.
This part also goes by the following cross reference.
Cross Reference Part Number:
Fits These Vehicles
| Make | Model | Engine | Years |
|---|---|---|---|
| No vehicles listed for this group. | |||
| Make | Model | Engine | Years |
|---|---|---|---|
| No vehicles listed for this group. | |||
| Make | Model | Engine | Years |
|---|---|---|---|
| No vehicles listed for this group. | |||