Shield your BMW's rear strut piston rod from grit, moisture, and road debris with the Sachs Suspension Strut Bellows 900049. This exact-fit rear service kit installs on the listed applications and wraps the highly polished piston rod and low-friction seal, helping the shock or strut ride cleanly and last as intended. It fits many BMW 3 Series models — including the 1993-1998 318I, 1993-1997 318IS, 2000 323CI, 1999-2000 323I, 1998-1999 323IS, 2001-2006 325CI, 2001-2005 and 1990-1995 325I, 1992 325IS, 1996-2000 328I, 1996-1999 328IS, 2001-2006 330CI, 2001-2005 330I, and 1995-1999 M3 — so check the Buyer's Guide tab for engine-level details.
If a torn or missing bellows is exposing your rear piston rod, this kit restores that barrier so the seal and rod stay protected.
What does this Sachs bellows do?
It is a protective boot that shields the rear strut's highly polished piston rod and low-friction seal from moisture, grit, and road debris, and helps cushion harsh driving conditions.
Which vehicles does the 900049 fit?
It fits many BMW 3 Series models, including the 318I, 318IS, 323CI, 323I, 323IS, 325CI, 325I, 325IS, 328I, 328IS, 330CI, 330I, and M3. See the Buyer's Guide tab for exact years and engines.
Is this a front or rear part?
It is a rear suspension strut bellows for the listed applications.
When should I replace the bellows?
SACHS suggests fitting new bumper bellows with each new shock or strut, so the fresh piston rod and seal stay protected from the start.
What are signs the bellows needs replacing?
A torn, cracked, or missing bellows that leaves the piston rod exposed to dirt and moisture is a sign it should be replaced to keep the seal and rod protected.
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.
