Febi 04989 Engine Timing Chain Tensioner - Upper

Febi 04989 Upper Hydraulic Timing Chain Tensioner

Restore proper timing chain control with this Febi upper hydraulic engine timing chain tensioner. Built for BMW applications that use an upper-position hydraulic tensioner, it helps maintain chain tension for consistent valve timing and quieter engine operation.

Key Features

• Upper fitting position for the timing chain system
• Hydraulic operating mode for oil-pressure-assisted chain tension
• Febi part number 04989 for direct reference
• OE-style replacement for select BMW engine timing chain applications
• Cross-references Febi 11 31 1 726 502 and 11 31 1 738 700 for the same application

Application Details

Compatible with a wide range of BMW models that use an upper hydraulic timing chain tensioner, including BMW 325Ci, 330Ci, X3, X5, 320i, 325i, 325xi, 330i, 330xi, 525i, 530i, Z4, Z3, 323Ci, 323i, 328Ci, 328i, 528i, 323is, 328is, M3, and 325is. Fits 2001-2006 BMW 325Ci, Upper; Fits 2001-2006 BMW 330Ci, Upper; Fits 2004-2006 BMW X3, Upper; Fits 2001-2006 BMW X5, Upper; Fits 2001-2005 BMW 320i, Upper; Fits 1992-1995 BMW 320i, Upper; Fits 2001-2005 BMW 325i, Upper; Fits 1992 BMW 325i, Upper; Fits 2001-2005 BMW 325xi, Upper; Fits 2001-2005 BMW 330i, Upper; Fits 2001-2005 BMW 330xi, Upper; Fits 2001-2005 BMW 525i, Upper; Fits 1991-1995 BMW 525i, Upper; Fits 2001-2005 BMW 530i, Upper; Fits 2003-2005 BMW Z4, Upper; Fits 1997-2002 BMW Z3, Upper; Fits 2000 BMW 323Ci, Upper; Fits 1998-2000 BMW 323i, Upper; Fits 2000 BMW 328Ci, Upper; Fits 1996-2000 BMW 328i, Upper; Fits 1999-2000 BMW 528i, Upper; Fits 1998-1999 BMW 323is, Upper; Fits 1996-1999 BMW 328is, Upper; Fits 1997-1998 BMW 528i, Upper; Fits 1995 BMW M3, Upper; Fits 1992 BMW 325is, Upper.

What It Helps Address

• Timing chain slack at the upper chain guide area
• Chain noise during startup or idle
• Irregular valve timing caused by weak chain tension
• Wear-related tension loss in high-mileage BMW engines
• Service replacement for a leaking or failing hydraulic tensioner

Installation Notes and Tips

Install in the upper timing chain position only. Verify engine code and OE part number match before ordering, since BMW fitment varies by model year and engine configuration. Because this is a hydraulic tensioner, proper oil pressure and clean engine oil are important for correct operation after installation.

Quality Assurance

Febi is an established aftermarket brand for European vehicle engine components, and this part is built to match the specified upper hydraulic timing chain tensioner application for BMW. Part number 04989 is provided for accurate identification and ordering.