Fuel Tank Breather Valve - E60 525i/530i & E83 X3 (M54 Engine)

This part is listed by BMW as BMW part number 13907557923 (13-90-7-557-923) and is described as Genuine BMW Fuel Tank Ventilation Valve with Pipe for E60 525i/530i and E83 X3 (M54 Engine).

Supersedes obsolete BMW part number 13907503986 (13-90-7-503-986).

This is a Genuine BMW purge valve with a two year warranty. Buying a Genuine part will usually be more expensive than an OEM or aftermarket brand but you are assured that it meets BMW's designs for fitment, performance, and longevity. It will also be the very latest design, incorporating any updates or revisions that an aftermarket brand typically will ignore.