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Febi 44978 Accessory Drive Belt Idler Pulley
Accessory Drive Belt Idler Pulley for Mercedes-Benz AMG
The Febi 44978 accessory drive belt idler pulley is built for Mercedes-Benz AMG applications that use an auxiliary belt system. With a plastic pulley body, 90.0 mm outside diameter, 61.0 mm pulley surface width, and M10 x 1.5 internal thread, it matches the dimensional requirements called out for the listed vehicles.
Febi’s febi product line focuses on OE-style replacement components for European vehicles, and this pulley is specified for AMG models that require an 8-rib accessory drive belt idler pulley. The Febi 44978 is a direct-fit service part for maintaining proper belt routing and pulley alignment on the accessory drive belt system.
Key Features
- Accessory drive belt idler pulley for auxiliary belt applications
- Plastic pulley construction
- 90.0 mm outside diameter
- 61.0 mm pulley surface width
- M10 x 1.5 internal thread
- 8-rib design
- Febi part number 44978
Vehicle Fitment
- Fits 2006-2011 Mercedes-Benz G55 AMG, N/A; additional information: for auxiliary belt, with bolt; internal thread M10 x 1.5; outer diameter 90 mm; material plastic; no. of ribs 6 / 8; pulley surface width 61 mm.
- Fits 2007-2008 Mercedes-Benz SL55 AMG, N/A; additional information: for auxiliary belt, with bolt; internal thread M10 x 1.5; outer diameter 90 mm; material plastic; no. of ribs 6 / 8; pulley surface width 61 mm.
- Fits 2006 Mercedes-Benz CL55 AMG, N/A; additional information: for auxiliary belt, with bolt; internal thread M10 x 1.5; outer diameter 90 mm; material plastic; no. of ribs 6 / 8; pulley surface width 61 mm.
- Fits 2006 Mercedes-Benz CLS55 AMG, N/A; additional information: for auxiliary belt, with bolt; internal thread M10 x 1.5; outer diameter 90 mm; material plastic; no. of ribs 6 / 8; pulley surface width 61 mm.
- Fits 2006 Mercedes-Benz E55 AMG, N/A; additional information: for auxiliary belt, with bolt; internal thread M10 x 1.5; outer diameter 90 mm; material plastic; no. of ribs 6 / 8; pulley surface width 61 mm.
- Fits 2003 Mercedes-Benz E55 AMG, N/A; additional information: for auxiliary belt, with bolt; internal thread M10 x 1.5; outer diameter 90 mm; material plastic; no. of ribs 6 / 8; pulley surface width 61 mm.
- Fits 2003-2006 Mercedes-Benz S55 AMG, N/A; additional information: for auxiliary belt, with bolt; internal thread M10 x 1.5; outer diameter 90 mm; material plastic; no. of ribs 6 / 8; pulley surface width 61 mm.
- Fits 2006 Mercedes-Benz SL55 AMG, N/A; pulley surface width 61 mm.
- Fits 2004-2005 Mercedes-Benz E55 AMG, N/A; pulley surface width 61 mm.
- Fits 2002 Mercedes-Benz E55 AMG, N/A; pulley surface width 61 mm.
- Fits 2003-2005 Mercedes-Benz SL55 AMG, N/A; grooved.
- Fits 2003-2004 Mercedes-Benz CL55 AMG, N/A; pulley surface width 61 mm.
Common Replacement Uses
- Replacing a worn or noisy accessory drive belt idler pulley
- Correcting belt tracking issues caused by pulley wear
- Restoring proper belt tension path in the auxiliary belt system
- Addressing pulley surface damage or bearing-related noise
- Servicing Mercedes-Benz AMG belt drive components with the correct dimensions
Installation Notes
Verify pulley diameter, width, rib count, and internal thread before installation. This Febi 44978 pulley is listed for auxiliary belt applications with bolt mounting and M10 x 1.5 internal thread, so confirm the belt routing and mounting style on the vehicle before replacement. Use the vehicle-specific fitment details above to match the correct Mercedes-Benz AMG application.
Quality Assurance
Febi is a recognized aftermarket brand for European vehicle replacement parts, and the febi line is used for OE-style service components. This part cross-references Mercedes-Benz OE numbers 113 202 01 19 and 113 202 02 19 for the same application.
| Brand | Febi |
|---|---|
| Part Number | 44978 |
| Position | febi |
| Material | Plastic |
| Width | 61.0 |
| Outside Diameter | 90.0 |
| Internal Thread | M10 x 1.5 |
| No. of Ribs | 8 |
This part fits 25 vehicles. Search below:
| Year | Make | Model | Body Type | Drive Type | Transmission | Liters | Cylinders | Fuel Type | Position | Notes |
|---|---|---|---|---|---|---|---|---|---|---|
| 2011 | Mercedes-Benz | G55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2010 | Mercedes-Benz | G55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2009 | Mercedes-Benz | G55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2008 | Mercedes-Benz | G55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2008 | Mercedes-Benz | SL55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2007 | Mercedes-Benz | G55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2007 | Mercedes-Benz | SL55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2006 | Mercedes-Benz | CL55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2006 | Mercedes-Benz | CLS55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2006 | Mercedes-Benz | E55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2006 | Mercedes-Benz | G55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2006 | Mercedes-Benz | S55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2006 | Mercedes-Benz | SL55 AMG | Convertible | RWD | Automatic | 5.4L | V8 | GAS | N/A | Pulley Surface Width (in / mm): 61; febi |
| 2005 | Mercedes-Benz | E55 AMG | Sedan | RWD | Automatic | 5.4L | V8 | GAS | N/A | Pulley Surface Width (in / mm): 61; febi |
| 2005 | Mercedes-Benz | S55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2005 | Mercedes-Benz | SL55 AMG | Convertible | RWD | Automatic | 5.5L | V8 | GAS | N/A | Grooved; febi |
| 2004 | Mercedes-Benz | CL55 AMG | Coupe | RWD | Automatic | 5.4L | V8 | GAS | N/A | Pulley Surface Width (in / mm): 61; febi |
| 2004 | Mercedes-Benz | E55 AMG | Sedan | RWD | Automatic | 5.4L | V8 | GAS | N/A | Pulley Surface Width (in / mm): 61; febi |
| 2004 | Mercedes-Benz | S55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2004 | Mercedes-Benz | SL55 AMG | Convertible | RWD | Automatic | 5.5L | V8 | GAS | N/A | Grooved; febi |
| 2003 | Mercedes-Benz | CL55 AMG | Coupe | RWD | Automatic | 5.4L | V8 | GAS | N/A | Pulley Surface Width (in / mm): 61; febi |
| 2003 | Mercedes-Benz | E55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2003 | Mercedes-Benz | S55 AMG | N/A | Additional information: for auxiliary belt, with bolt; Internal Thread 1: M10 x 1.5; Outer Diameter 1 (mm): 90; Material: Plastic; No. of Ribs: 6 / 8; Pulley Surface Width (mm): 61 | ||||||
| 2003 | Mercedes-Benz | SL55 AMG | Convertible | RWD | Automatic | 5.5L | V8 | GAS | N/A | Grooved; febi |
| 2002 | Mercedes-Benz | E55 AMG | Sedan | RWD | Automatic | 5.4L | V8 | GAS | N/A | Pulley Surface Width (in / mm): 61; febi |
* 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.