This Original BMW Alternator Air Duct keeps the intake path sealed as air travels toward the throttle body on the BMW 3 Series (1999–2005). Original BMW Parts are produced and tested to BMW's own specifications rather than to fit the widest range of cars.
Technical Details
- Part: Alternator Air Duct
- Function: Routes intake air between the specified intake-system components.
- BMW part number: 12-31-1-706-643
- Fitment years: 1999–2005
- Applications: BMW 3 Series
Fitment & Compatibility
Use the table below to verify the year and submodel for your build.
Send your VIN and PMB Performance will confirm the fit, drawing on more than 20 years in the trade.
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 1999–2000 | BMW | 323i | ||
| 2001–2005 | BMW | 325i | ||
| 2001–2005 | BMW | 325xi | ||
| 1999 | BMW | 328i | ||
| 2001–2005 | BMW | 330i | ||
| 2001–2005 | BMW | 330xi |