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000 202 07 19 - Mercedes-Benz Drive Belt Idler Pulley (Grooved)
004 153 87 28 - Mercedes-Benz Crankshaft Position Sensor
000 202 09 19 – Mercedes-Benz Serpentine Belt Idler Pulley (Grooved)
Description
000 202 09 19 – Mercedes-Benz Serpentine Belt Idler Pulley (Grooved).
The idler pulley (000-202-09-19) is a precision-engineered guide component within the engine’s accessory drive system. Its primary role is to redirect the serpentine belt to ensure optimal wrap around various accessory pulleys—such as the alternator, water pump, and air conditioning compressor—thereby maintaining the necessary tension and alignment. It features a grooved profile that meshes with the ribs of the V-belt to prevent slippage, reduce harmonic vibrations, and minimize noise during operation. It is constructed with a high-grade sealed ball bearing designed to withstand high RPMs and thermal stress.
Compatibility:
This part is widely used in Mercedes-Benz vehicles equipped with L6, V6, and V8 engines (notably M104, M112, and M113). Compatible makes and models include:
C-Class (W202/W203) 1994-2007 (C220, C230, C240, C280, C320, C350, C43 AMG, C55 AMG);
- E-Class (W210/W211) 1996-2006 (E320, E430, E500, E55 AMG);
- S-Class (W140/W220) 1992-2006 (S320, S350, S430, S500, S600, S55 AMG);
- SL-Class (R129/R230) 1990-2006 (SL320, SL500, SL600, SL55 AMG);
- CLK-Class (W208/W209) 1998-2006 (CLK320, CLK430, CLK500, CLK55 AMG);
- ML-Class (W163/W164) 1998-2006 (ML320, ML350, ML430, ML500, ML55 AMG); and
- SLK-Class (R170) 1998-2004 (SLK230, SLK320).
