Help shield the polished piston rod on your rear shock or strut from grit and road spray with the SACHS Strut Bellow, part number 900191. It is an exact-fit replacement for the rear position on the 2004-2010 BMW X3. See the Buyer's Guide tab for engine-level details.
SACHS calls this part a bumper bellows. It is an exact-fit service kit designed to work with SACHS premium shocks and struts. As a suspension strut bellow, it covers the damper's piston rod and seal area and helps keep contaminants away from the surfaces the shock or strut depends on.
SACHS suggests replacing the bumper bellows each time a new shock or strut is installed, so the new damper starts out with an intact cover. Signs this part may need replacing include a torn, cracked or collapsed bellows, a piston rod that is exposed or coated in dirt, or a boot that has come loose. Inspect the bellows whenever the rear shocks or struts are serviced.
Fitment: 2004-2010 BMW X3 (rear). See the Buyer's Guide tab for engine details.
What vehicles does SACHS 900191 fit?
It is listed for the rear position on the 2004-2010 BMW X3. See the Buyer's Guide tab for engine-level fitment details.
What does this strut bellow do?
It covers the shock or strut's highly polished piston rod and low-friction seal. It helps protect them against environmental elements and helps cushion the suspension in harsh driving conditions.
Should I replace the bellows when I install new shocks or struts?
Yes. SACHS suggests replacing the bumper bellows with each new shock and strut, so the new damper's piston rod and seal are protected from the start.
What are signs the bellows may need replacing?
Signs include a torn, cracked or collapsed boot, or a piston rod that looks exposed or dirty. Inspect the bellows whenever the rear shocks or struts are serviced.
Is it designed to work with SACHS shocks and struts?
Yes. SACHS designed this exact-fit service kit to work with its premium shocks and struts for the listed 2004-2010 BMW X3 rear application.
WARNING: These products can expose you to chemicals including lead and phthalates, which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
