INA FB6K606 Serpentine Belt - Alternator

INA FB6K606 Serpentine Belt

INA FB6K606 is a serpentine belt for the accessory drive belt system, built for alternator applications on select BMW and Toyota vehicles. It supports front-end auxiliary drive operation in tight engine bays where vibration control and reliable belt tracking matter.

• Serpentine belt for alternator drive applications
• Fits select BMW 325Ci, 330Ci, X3, X5, 325i, 325xi, 330i, 330xi, 525i, 530i, 323i, 323Ci, 328Ci, 328i, 528i, and Z3 models
• Fits select Toyota Corolla, Matrix, and Celica models without air conditioning
• INA Global Number FB6PK1540 noted in fitment data
• Cross-references OE-style part number 11 28 1 437 475 and FB6PK1540

Fitment and Application Details

Compatible With 1996-2008 BMW and Toyota applications listed below, this belt is specified for alternator drive use. Fits 1998-2008 Toyota Corolla, Alternator, w/o AC; Fits 2003-2008 Toyota Matrix, Alternator, w/o AC; Fits 2001-2005 Toyota Celica, Alternator, w/o AC; Fits 2001-2006 BMW 325Ci, Alternator; Fits 2001-2006 BMW 330Ci, Alternator; Fits 2004-2006 BMW X3, Alternator; Fits 2001-2006 BMW X5, Alternator; Fits 2001-2005 BMW 325i, Alternator; Fits 2001-2005 BMW 325xi, Alternator; Fits 2001-2005 BMW 330i, Alternator; Fits 2001-2005 BMW 330xi, Alternator; Fits 2001-2005 BMW 525i, Alternator; Fits 2004-2005 BMW 530i, Alternator, Without Dynamic Drive; Fits 2001-2003 BMW 530i, Alternator; Fits 1999-2001 BMW 323i, Alternator; Fits 2001 BMW Z3, Alternator; Fits 1999 BMW Z3, Alternator; Fits 1997 BMW Z3, Alternator; Fits 2000 BMW 323Ci, Alternator; Fits 2000 BMW 328Ci, Alternator; Fits 2000 BMW 328i, Alternator; Fits 1996-2000 BMW 528i, Alternator.

What This Belt Helps Address

• Squealing or chirping from a worn accessory drive belt
• Alternator charging issues caused by belt slip or poor tension
• Cracking, glazing, or fraying on the existing serpentine belt
• Noise and vibration in the front-end auxiliary drive system
• Service replacement for BMW and Toyota alternator belt applications

Installation Notes

Verify engine configuration, accessory layout, and the absence of air conditioning where noted before ordering. Confirm the alternator drive routing against the existing belt and match the OE reference FB6PK1540 or 11 28 1 437 475 when checking application details.

Quality Assurance

INA positions this belt within its FEAD lineup, which focuses on front-end auxiliary drive components for vibration damping and compact engine packaging. The brand also offers complete component coverage and assembled FEAD kits for broader system maintenance.