2021 Audi A4 Suspension Parts

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

5 Ball Joint parts are listed for the 2021 Audi A4, from MEVOTECH, DORMAN, MOOG and 2 other brands. MEVOTECH MS10575 carries the "Popular" badge.

The Daily Driver section lists 3 options from MEVOTECH, DORMAN and MOOG — grouped for everyday commuting duty. MEVOTECH MS10575 is listed in this group.

In the Economy grade, BECK/ARNLEY and FVP supply 2 parts: the catalog's value-priced group. A representative part number is BECK/ARNLEY 1018400.

Part numbers include MEVOTECH MS10575, DORMAN 538236 and MOOG K500353, among others listed above.

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

61 Control Arm parts are listed for the 2021 Audi A4, from MEVOTECH, DELPHI, MOOG and 4 other brands. MOOG RK623949 carries the "Popular" badge. They are grouped as Daily Driver and Economy, with Daily Driver the largest group at 42 parts from MEVOTECH, DELPHI, MOOG and 2 other brands.

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

10 Control Arm Bushing parts are listed for the 2021 Audi A4, from DELPHI, MEVOTECH, DORMAN and 3 other brands. DELPHI TD1633W carries the "Popular" badge.

The Daily Driver section: 5 options from DELPHI, LEMFÖRDER and MEVOTECH. DELPHI TD1633W is listed in this group.

Economy: 5 parts, from DORMAN, ÜRO PARTS, MEVOTECH and 1 other brand. A representative part number is ÜRO PARTS 8K0407183F.

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

5 Ride Height Sensor parts are listed for the 2021 Audi A4, from MONROE and VEMO. VEMO V10720064 carries the "Popular" badge.

Part numbers include VEMO V10720064, MONROE HS10017 and MONROE HS10018, among others listed 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

20 Shock / Strut parts are listed for the 2021 Audi A4, from BILSTEIN, SACHS, FCS and 1 other brand. BILSTEIN 24262347 carries the "Popular" badge.

The Increased Handling/Stability section lists 6 options from BILSTEIN and KYB — grouped under the catalog's "Increased Handling/Stability" designation — the notes column spells out what sets them apart. BILSTEIN 24262293 is listed in this group.

In the Original Ride Quality grade, BILSTEIN, SACHS and FCS supply 14 parts: grouped under the catalog's "Original Ride Quality" designation — the notes column spells out what sets them apart. A representative part number is BILSTEIN 24262347.

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

2 Shock / Strut & Coil Spring Assembly parts are listed for the 2021 Audi A4, from PRT and FCS.

Economy: 1 part, from PRT. A representative part number is PRT 921582.

Original Ride Quality: 1 part, from FCS. A representative part number is FCS 1355170.

Listed part numbers: PRT 921582 and FCS 1355170.

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

This group shows a single part: SACHS 803294.

This table covers the Suspension kits. Read more

BILSTEIN supplies the 3 Suspension Kit parts for the 2021 Audi A4.

The Adjustable Performance section lists 1 option from BILSTEIN — grouped under the catalog's "Adjustable Performance" designation — the notes column spells out what sets them apart. BILSTEIN 48262316 is listed in this group.

The Increased Handling/Stability section: 1 option from BILSTEIN. BILSTEIN 46275349 is listed in this group.

Original Ride Quality: 1 part, from BILSTEIN. A representative part number is BILSTEIN 49290868.

Part numbers include BILSTEIN 48262316, BILSTEIN 46275349 and BILSTEIN 49290868.

This table covers the bushings that clamp the anti-roll bar to the chassis. 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

6 Sway Bar Bushing parts are listed for the 2021 Audi A4, from DELPHI, MOOG, MEVOTECH and 2 other brands. DELPHI TD826W carries the "Popular" badge.

The Daily Driver section: 4 options from DELPHI, MOOG and MEVOTECH. DELPHI TD826W is listed in this group.

Economy: 2 parts, from DORMAN and ÜRO PARTS. A representative part number is DORMAN 540212.

Listed part numbers: DELPHI TD826W, MOOG K201021 and DELPHI TD5787W, 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

12 Sway Bar Link parts are listed for the 2021 Audi A4, from DELPHI, MEVOTECH, DORMAN and 4 other brands. DELPHI TC2312 carries the "Popular" badge.

The Daily Driver section: 9 options from DELPHI, DORMAN, MEVOTECH and 2 other brands. DELPHI TC2312 is listed in this group.

Economy: 3 parts, from BECK/ARNLEY, FVP and MEVOTECH. A representative part number is BECK/ARNLEY 1018480.