The tie rod boot is a simple protective cover for a very expensive system on your car: the steering rack and linkage. These boots are there to protect the inner ball joint on the tie rod, retain grease for the rack, and prevent outside debris from entering the rack. A ripped boot (sometimes called a gaiter) can spell bad news if left un-repaired. It's an easy replacement, and if done carefully, does not require an alignment after.
This kit includes one boot and the inner and outer Oetiker clamps. If you don't have Oetike clamp pliers a regular zip tie strap will suffice.
BMW Fitments:
2 Series
F22 / F23 (2014-2021) > 228i
F22 / F23 (2014-2021) > 230i
F22 / F23 (2014-2021) > 230i xDrive
3 Series
F30 / F31 / F34 (2012-2019) > 320i
F30 / F31 / F34 (2012-2019) > 328d
F30 / F31 / F34 (2012-2019) > 328i
F30 / F31 / F34 (2012-2019) > 330i
F30 / F31 / F34 (2012-2019) > 335i
F30 / F31 / F34 (2012-2019) > 340i
4 Series
F32 / F33 / F36 (14-20) > 428i
F32 / F33 / F36 (14-20) > 430i
F32 / F33 / F36 (14-20) > 435i
F32 / F33 / F36 (14-20) > 440i