This is a complete tie rod, including the inner and outer pieces. While it's technically possible to replace only the outer ball joint it's our experience that the inner sees just as much wear as the outside and they should be replaced together. Worn tie rod ball joints will give a loose and disconnected steering feel as well as clunking sounds. Since the tie rods are the only direct link between your steering wheel and the wheels it's crucial to inspect tie rods annually, or more often on track-driven cars. Replace the tie rods if any play or wear is evident.
This part is manufactured by an aftermarket supplier of European auto parts, including many suspension components. While not carrying OEM status, this part follows the design of the original very closely and uses similar materials. An aftermarket part may even have the same TUV approval as its OEM counterpart. The brand may even be OEM to another manufacturer besides BMW. This aftermarket brand has a two year warranty - the same as Genuine BMW and OEM brands.
BMW Fitments:
5 Series
E60 / E61 (04-10) > 525i M54 (2004-2005)
E60 / E61 (04-10) > 525i N52 (2006-2007)
E60 / E61 (04-10) > 528i
E60 / E61 (04-10) > 530i M54 (2004-2005)
E60 / E61 (04-10) > 530i N52 (2006-2007)
E60 / E61 (04-10) > 535i
E60 / E61 (04-10) > 545i
E60 / E61 (04-10) > 550i
E60 / E61 (04-10) > M5
6 Series
E63 / E64 (04-10) > 645Ci
E63 / E64 (04-10) > 650i
E63 / E64 (04-10) > M6