HomeBelts and Cooling > Accessory Drive Belt System ComponentsFebi 44978 Accessory Drive Belt Idler Pulley
Part #: 44978

Febi 44978 Accessory Drive Belt Idler Pulley

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25 vehicles fit this part
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Fitment: Mercedes-Benz, CL55 AMG, CLS55 AMG, E55 AMG, G55 AMG, S55 AMG, and SL55 AMG
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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.

BrandFebi
Part Number44978
Positionfebi
MaterialPlastic
Width61.0
Outside Diameter90.0
Internal ThreadM10 x 1.5
No. of Ribs8

This part fits 25 vehicles. Search below:

YearMakeModelBody TypeDrive TypeTransmissionLitersCylindersFuel TypePositionNotes
2011Mercedes-BenzG55 AMGN/AAdditional 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
2010Mercedes-BenzG55 AMGN/AAdditional 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
2009Mercedes-BenzG55 AMGN/AAdditional 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
2008Mercedes-BenzG55 AMGN/AAdditional 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
2008Mercedes-BenzSL55 AMGN/AAdditional 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
2007Mercedes-BenzG55 AMGN/AAdditional 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
2007Mercedes-BenzSL55 AMGN/AAdditional 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
2006Mercedes-BenzCL55 AMGN/AAdditional 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
2006Mercedes-BenzCLS55 AMGN/AAdditional 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
2006Mercedes-BenzE55 AMGN/AAdditional 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
2006Mercedes-BenzG55 AMGN/AAdditional 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
2006Mercedes-BenzS55 AMGN/AAdditional 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
2006Mercedes-BenzSL55 AMGConvertibleRWDAutomatic5.4LV8GASN/APulley Surface Width (in / mm): 61; febi
2005Mercedes-BenzE55 AMGSedanRWDAutomatic5.4LV8GASN/APulley Surface Width (in / mm): 61; febi
2005Mercedes-BenzS55 AMGN/AAdditional 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
2005Mercedes-BenzSL55 AMGConvertibleRWDAutomatic5.5LV8GASN/AGrooved; febi
2004Mercedes-BenzCL55 AMGCoupeRWDAutomatic5.4LV8GASN/APulley Surface Width (in / mm): 61; febi
2004Mercedes-BenzE55 AMGSedanRWDAutomatic5.4LV8GASN/APulley Surface Width (in / mm): 61; febi
2004Mercedes-BenzS55 AMGN/AAdditional 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
2004Mercedes-BenzSL55 AMGConvertibleRWDAutomatic5.5LV8GASN/AGrooved; febi
2003Mercedes-BenzCL55 AMGCoupeRWDAutomatic5.4LV8GASN/APulley Surface Width (in / mm): 61; febi
2003Mercedes-BenzE55 AMGN/AAdditional 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
2003Mercedes-BenzS55 AMGN/AAdditional 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
2003Mercedes-BenzSL55 AMGConvertibleRWDAutomatic5.5LV8GASN/AGrooved; febi
2002Mercedes-BenzE55 AMGSedanRWDAutomatic5.4LV8GASN/APulley 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:

113 202 01 19113 202 02 19113 202 03 19113 202 04 19

Cross-reference numbers are provided for identification purposes only. Always confirm fitment before ordering.