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Febi 18664 Engine Timing Belt Idler Pulley
| Brand | Febi 18664 |
|---|---|
| Inner Diameter (mm) | 17.0 |
| Material | metal |
| Outside Diameter | 70.0 |
| Width | 34.0 |
| Fits | Volkswagen · 8 vehicles |
Metal construction. Provides durable support for the timing belt system.
Timing belt idler pulley. Helps guide belt movement for smooth engine operation.
Cross-references 059 109 244, 059 109 244 A and 059 109 244 B for the same application. See all 4.
Febi Timing Belt Idler Pulley for Audi and Volkswagen
Febi part number 18664 is an engine timing belt idler pulley built with a metal construction and precise dimensions for select Audi and Volkswagen applications. It is specified for upper-position fitment on the Audi A8 Quattro and Volkswagen Phaeton, making it a direct-match service part for timing system maintenance.
Key Features
- Metal pulley construction for timing belt service
- Outside diameter: 70.0 mm
- Inner diameter: 17.0 mm
- Width: 34.0 mm
- Upper-position fitment on listed applications
- Febi part number 18664 for catalog and cross-reference use
Detailed Product Information
Febi 18664 is an engine timing belt idler pulley used in the valve train and timing drive system. The pulley’s 70.0 mm outside diameter, 17.0 mm inner diameter, and 34.0 mm width are the key dimensions that define fitment for the listed vehicles. This part is listed for 2002-2006 Audi A8 Quattro, upper, as well as 2004 Volkswagen Phaeton, upper, and 2005-2006 Volkswagen Phaeton with the specified dimensions. Febi 18664 is a practical choice when replacing a worn timing belt idler pulley on these Audi A8 Quattro and Volkswagen Phaeton applications.
This part cross-references 059 109 244 and 059 109 244 A for the same application.
What This Part Helps Address
- Timing belt noise from a worn idler pulley
- Belt tracking issues caused by pulley wear
- Rough or uneven pulley rotation in the timing drive
- Service replacement for upper timing belt routing on listed vehicles
- Maintenance of the engine timing system on Audi A8 Quattro and Volkswagen Phaeton models
Installation Notes and Tips
Verify pulley dimensions and position before installation: 70.0 mm outside diameter, 17.0 mm inner diameter, and 34.0 mm width. Confirm upper-position placement on the vehicle and compare the old pulley to the new part before assembly. Timing system service should be performed with the engine properly timed and all related components inspected for wear.
Quality Assurance
Febi is a recognized aftermarket brand for engine and chassis service parts, and febi-branded components are cataloged for OE-style replacement applications. Part number 18664 is specified for the listed Audi and Volkswagen fitments to support accurate parts selection.
| Year | Make | Model | Liters | Cylinders | Position | Notes |
|---|---|---|---|---|---|---|
| 2006 | Audi | A8 Quattro | 4.2L | V8 | Upper | febi |
| 2006 | Volkswagen | Phaeton | — | — | N/A | Inner Diameter 1 (mm): 17; Outer Diameter 1 (mm): 70; Width 1 (mm): 34; Material: metal |
| 2005 | Audi | A8 Quattro | 4.2L | V8 | Upper | febi |
| 2005 | Volkswagen | Phaeton | — | — | N/A | Inner Diameter 1 (mm): 17; Outer Diameter 1 (mm): 70; Width 1 (mm): 34; Material: metal |
| 2004 | Audi | A8 Quattro | — | — | Upper | febi |
| 2004 | Volkswagen | Phaeton | 4.2L | V8 | Upper | febi |
| 2003 | Audi | A8 Quattro | — | — | Upper | febi |
| 2002 | Audi | A8 Quattro | — | — | Upper | febi |
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