AC Evaporator-Expansion Valve O-Ring (Large) - E85/E86 Z4

This part is listed by BMW as BMW part number 64116927621 (64 11 6 927 621) and is described as the large o-ring used on the A/C evaporator lines and the expansion valve for 2003-2008 Z4 Roadster and Z4 Coupe, including Z4M. This is the large o-ring - the corresponding small o-ring is sold separately.

This is a Genuine BMW A/C o-ring 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.

For full BMW fitment information or for assistance from one of our BMW experts, we recommend calling us at 877-639-9648.