2021 BMW X4 Suspension Parts

This table covers the ball joints that articulate each control arm at the knuckle. Read more

One part is listed for the 2021 BMW X4 — MEVOTECH MS10598.

This table covers the control arms that locate each hub relative to the chassis. Typical signs include clunks over bumps, a wander on the highway, or inner-edge tire wear. Get an alignment after any control-arm work, and inspect the ball joint and bushings that came with the arm. Read more

52 Control Arm parts are listed for the 2021 BMW X4, from MEVOTECH, SUSPENSIA, DELPHI and 2 other brands. MEVOTECH CMS101574 carries the "Popular" badge. Daily Driver and Economy are all represented, and Daily Driver alone accounts for 36 parts.

This table covers the bushings pressed into each control arm. Typical signs include a clunk over bumps, or a torn or walked-out bushing you can see. Press the new bushing square. A cocked bushing will tear in a few thousand miles. Read more

5 Control Arm Bushing parts are listed for the 2021 BMW X4, from SUSPENSIA and DORMAN. SUSPENSIA X05BU0085 carries the "Popular" badge. All of them fit every engine offered in the 2021 X4.

The Daily Driver section lists 3 options from SUSPENSIA — grouped for everyday commuting duty. SUSPENSIA X05BU0085 is listed in this group.

In the Economy grade, DORMAN supplies 2 parts: the catalog's value-priced group. A representative part number is DORMAN 533635.

Part numbers include SUSPENSIA X05BU0085, SUSPENSIA X05BU1297 and SUSPENSIA X05BU1276, among others listed above.

This table covers the Control Arm nuts. Read more

This group shows a single part: REIN HWN0119.

This table covers the Ride Height sensors. Typical signs include a warning lamp, a stored code, or a reading that drops out when the harness is wiggled. Inspect the connector and ground before replacing the sensor — wiring faults are often condemned as bad sensors. Read more

4 Ride Height Sensor parts are listed for the 2021 BMW X4, from ARNOTT, FCS and MONROE. All of them fit every engine offered in the 2021 X4.

Listed part numbers: ARNOTT RH4387, ARNOTT RH3718 and FCS HS008, plus the other parts above.

This table covers the shocks and struts that damp wheel motion. Typical signs include a nose that keeps bouncing, cupped tires, or fluid weeping down the body. Replace shocks or struts in axle pairs and renew the mounts if they are torn or collapsed. Read more

9 Shock / Strut parts are listed for the 2021 BMW X4, from BILSTEIN, FCS and ARNOTT. FCS 334107L carries the "Popular" badge. 6 parts fit every engine; the other 3 are engine-specific.

The Increased Handling/Stability section lists 3 options from BILSTEIN — grouped under the catalog's "Increased Handling/Stability" designation — the notes column spells out what sets them apart. BILSTEIN 22305169 is listed in this group.

In the Original Ride Quality grade, FCS, ARNOTT and BILSTEIN supply 6 parts: grouped under the catalog's "Original Ride Quality" designation — the notes column spells out what sets them apart. A representative part number is FCS 334107L.

This group includes FCS 334107L, BILSTEIN 22305169 and BILSTEIN 22305183 and the remaining parts above.

This table covers complete strut assemblies with the spring already installed. Read more

10 Shock / Strut & Coil Spring Assembly parts are listed for the 2021 BMW X4, from PRT, FCS and TOP NOTCH. FCS 1334107L carries the "Popular" badge. 6 parts fit every engine; the other 4 are engine-specific.

Economy: 4 parts, from PRT. A representative part number is PRT 920819.

Original Ride Quality: 6 parts, from FCS and TOP NOTCH. A representative part number is FCS 1334107L.

This table covers the Shock / Strut bearings. Typical signs include a growl that rises with speed, or play in the shaft or hub. Set preload the way the notes specify. A dry or crushed bearing fails quickly. Read more

One part is listed for the 2021 BMW X4 — VAICO V204750.

This table covers the upper mounts (and bearings) a strut bolts through at the tower. Typical signs include a clunk on takeoff, a vibration at idle, or a separated rubber insert. Support the powertrain before unbolting a mount, and torque the fasteners in the notes. Read more

4 Shock / Strut Mount parts for the 2021 BMW X4 come from 4 brands — KYB, SACHS, DEA / MARMON RIDE CONTROL and 1 other brand. 2 parts fit every engine; the other 2 are engine-specific.

Daily Driver: 2 parts, from KYB and SACHS. A representative part number is KYB SM5987.

The Economy section: 1 option from DEA / MARMON RIDE CONTROL. DEA / MARMON RIDE CONTROL 4714367 is listed in this group.

1 further part sits outside the graded sections, with the same engine-level match.

Listed part numbers: KYB SM5987, SACHS 802635 and DEA / MARMON RIDE CONTROL 4714367, plus the other parts above.

This table covers the links that connect the anti-roll bar to each control arm or strut. Typical signs include a clunk on one wheel over a driveway, or a rattle that goes away when you lean on the bar. Replace links in pairs; a seized stud often takes the bushing with it. Read more

18 Sway Bar Link parts are listed for the 2021 BMW X4, from MEVOTECH, DORMAN, SUSPENSIA and 3 other brands. DELPHI TC6991 carries the "Popular" badge. 17 parts fit every engine; the other 1 is engine-specific.

The Daily Driver section: 14 options from DORMAN, SUSPENSIA, MEVOTECH and 2 other brands. DELPHI TC6991 is listed in this group.

Economy: 4 parts, from MEVOTECH and BECK/ARNLEY. A representative part number is BECK/ARNLEY 1018476.