2021 Audi S4 Suspension Parts

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Essential Suspension Parts for 2021 Audi S4s

Dorman – Suspension Control Arm Bushing (Part No.533-628)

Suspension Control Arm Bushing

from

$51.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment bushing on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm Bushing (Part No.533-629)

Suspension Control Arm Bushing

from

$97.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment bushing on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm Bushing (Part No.533-693)

Suspension Control Arm Bushing

from

$25.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment bushing on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Rein – Control Arm Bushing (Part No.AVB0615)

Control Arm Bushing

from

$33.99
Anti-vibration parts dampen vibration harmonics from the engine and drive line components to rest of the vehicle. This in turn reduces vibration and noise which can be felt and heard while the vehicle is in operation. Rein automotive anti-vibration parts are application specific and match the design and function of the OE parts.

Product Features:
  • All Rein Automotive control arm bushings are hydraulic or rubber-to-metal based on the original equipment mount, ensuring the parts performs like original.
  • Manufactured to strict engineering standards/specifications in materials and tolerances
  • Rubber components match the shore hardness of the original equipment bushing to ensure maximum performance and product longevity
  • Recommend to replace bushings in pairs to ensure best performance. Note: Control Arm Bushing Kits contain the needed pair.
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Dorman – Suspension Control Arm Bushing (Part No.533-692)

Suspension Control Arm Bushing

from

$21.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment bushing on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm Bushing (Part No.532-150)

Suspension Control Arm Bushing

from

$22.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment bushing on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Whiteline – Front Upper Control Arm – Bushing Kit (Part No.W53407)

Front Upper Control Arm - Bushing Kit

from

$46.99
Worn front control arm bushings have a huge influence on vehicle stability, steering precision and braking efficiency. Replace worn bushings to as new condition utilising Whiteline’s advanced synthetic elastomer bushings with core characteristics ensuring superior elasticity, memory and outright durability for all forms of driving applications.

Product Features:
  • Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
  • Protective plating on all metal components acts as a hard skin that is much tougher than conventional paint allowing this product to withstand the toughest conditions and resist corrosion for years to come.
  • Whiteline’s latest technology synthetic elastomer formulation boasts resistance to oil, grease, ozone and weathering.
  • Supplied with extreme pressure molybdenum disulphide (LM) based grease for extended life.
  • Internal grease reservoirs provide continual self lubrication for optimum friction management.
  • Specially bonded design for optimised strength typically required in high load bearing applications.
  • Install guide included providing detailed instructions on how to install your new Whiteline purchase.
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Dorman – Suspension Control Arm (Part No.521-256)

Suspension Control Arm

from

$211.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm (Part No.521-255)

Suspension Control Arm

from

$159.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

MOOG – Suspension Control Arm (Part No.RK641964)

Suspension Control Arm

from

$172.99
Product Features:
  • EASY TO INSTALL – Precision tolerances for easy installation and steering alignment giving you a perfect fit right out of the box
  • HIGHLY PRECISE ENGINEERING – Optimized bushings for quiet operation and resistance to wear, salt, road grime and oils
  • COMPREHENSIVE COVERAGE – Available for foreign and domestic nameplates
  • Construction and design validated by MOOG engineers
  • Broad coverage for foreign and domestic applications
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Dorman – Suspension Control Arm (Part No.526-172)

Suspension Control Arm

from

$483.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm (Part No.526-827)

Suspension Control Arm

from

$298.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Rein – Control Arm (Part No.SCA0146P)

Control Arm

from

$91.99
Worn suspension can cause loose steering, increased wear on tires, excess noise and lead to misalignments. Rein Automotive OE quality suspension parts are direct replacements for OE suspension parts and will reduce the wear on tires and reduce noise as well as tighten steering. Rein Automotive suspension parts come with the mounting hardware if required.
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Dorman – Suspension Control Arm (Part No.524-226)

Suspension Control Arm

from

$296.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Carquest Premium – Multi-Purpose Relay (Part No.RAA1245)

Multi-Purpose Relay

from

$16.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

Dorman – Suspension Lateral Arm (Part No.526-317)

Suspension Lateral Arm

from

$73.99
This lateral arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Lateral Arm (Part No.526-579)

Suspension Lateral Arm

from

$101.99
This lateral arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Lateral Arm (Part No.526-318)

Suspension Lateral Arm

from

$73.99
This lateral arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Upgrade your 2021 Audi S4 with Top-Quality Suspension Parts

When it comes to maintaining or upgrading your 2021 Audi S4, nothing is more important than using high-quality OEM or aftermarket parts that you can trust. Whether you’re repairing damage to your Audi or enhancing its overall performance, Suspension Parts are key to keeping your S4 functioning at its best. At Advance Auto Parts, we offer a wide selection of 8 Suspension Parts for the 2021 Audi S4, designed to meet your needs without breaking the bank. From Air Suspension and Kit replacements to Control Arms upgrades, we’ve got you covered with parts that fit your vehicle perfectly and ensure long-lasting performance.

Affordable Prices and Wide Selection

Shopping for Suspension Parts for any vehicle can be a hassle, especially if you’re on a budget. But with Advance Auto Parts, you can find high-quality Suspension Parts for your 2021 Audi S4 at great prices. Our Suspension Parts inventory for this model ranges from just $16.99 to $298.99, with an average price of $126.87. Our 8 Suspension Parts in stock come from 2 trusted brands, so you’re sure to find the right part for your 2021 Audi S4 without overspending.

Explore Related Parts and More

While you’re here, don’t forget to check out other essential categories that go hand in hand with Suspension Part upgrades. Explore related part types like Batteries and Chargers, Oil and Lubricants and more to make sure your 2021 Audi S4 is always ready to roll. We’re committed to providing you with everything you need to keep your S4 in top shape, all in one place. Start shopping confidently below for your 2021 Audi S4!

Best-Selling Air Suspension and Kits for 2021 Audi S4s

Enhance the driving experience in your Audi with 1 quality Air Suspension and Kit components, starting at $16.99.

Carquest Premium – Multi-Purpose Relay (Part No.RAA1245)

Multi-Purpose Relay

from

$16.99
Relays are electrical switches used to convert a small electrical load into a circuit capable of handling a high amperage load. Computers and small switches are not designed to carry the higher amperage requirement of a circuit that may have an electric motor, solenoid, or high amperage lighting fixture. Within a relay are contacts that are controlled with electromagnetism, when the circuit switch commands the device on or off, magnetism will pull or release the contact arm closing or opening the contacts within the relay that carry the voltage.

Product Features:
  • Product constructed to meet all design and operating characteristics as intended by the vehicle manufacturer.
  • Computer-Aided Design (CAD), laser scanning and 3D printing – utilizing Fused Deposition Modeling (FDM) and Stereolithography (SLA) – in the part design process ensures speed-to-market and a precise fit guaranteed.
  • Where applicable, robust circuit board design increases durability due to heat, shock, and random electro-magnetic pulses (EMP) and power spikes.
  • Tin plated lead frame prevents corrosion and ensures a reliable terminal connection under adverse ambient conditions.
  • 100% thermo-shock and vibration tested to ensure superior performance in extreme conditions.
  • 100% end-of-line tested to ensure accurate signal output providing product reliability, every time.
See More

Most Popular 2021 Audi S4 Control Arms

Customize your Audi with 7 Control Arms products like Lower Control Arm Bushings, Lower Control Arms, and Lateral Arms, all priced under $298.99.

Dorman – Suspension Control Arm (Part No.526-828)

Suspension Control Arm

from

$298.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm (Part No.526-827)

Suspension Control Arm

from

$298.99
This suspension control arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Lateral Arm (Part No.526-579)

Suspension Lateral Arm

from

$101.99
This lateral arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm Bushing (Part No.533-629)

Suspension Control Arm Bushing

from

$97.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment bushing on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Lateral Arm (Part No.526-318)

Suspension Lateral Arm

from

$73.99
This lateral arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Lateral Arm (Part No.526-317)

Suspension Lateral Arm

from

$73.99
This lateral arm is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

Dorman – Suspension Control Arm Bushing (Part No.533-628)

Suspension Control Arm Bushing

from

$51.99
This suspension control arm bushing is precision-engineered and rigorously tested to provide reliable replacement for the original equipment on specific vehicles.

Product Features:
  • Direct replacement – fits and performs like the original equipment bushing on specific vehicles
  • Reliable fit – precision-engineered to match the design and dimensions of original components
  • Durable construction – manufactured to strict standards using sturdy, safe materials
  • Rigorously tested – thorough quality control measures ensure longevity
See More

FAQs for 2021 Audi S4 Suspension Parts

Which Suspension Parts are best-sellers for 2021 Audi S4s?

Out of 8 Suspension Parts that fit 2021 Audi S4s, the following parts are the top sellers:

What’s the price range for 2021 Audi S4 Suspension Parts?

Suspension Part prices for the 2021 Audi S4 start at $16.99 and go up to $298.99 for the most premium parts.

What’s the average price of a Suspension Part for a 2021 Audi S4?

The average price for Suspension Parts for the 2021 Audi S4 is $126.87. Keep in mind the variety of part types within our Suspension Part category so you are likely to find a wide range of prices across a variety of parts and components.

Does Advance Auto Parts sell Suspension Parts for other Audi S4 model years?

Yes, we currently carry Suspension Parts for 25 model years of Audi S4s between 1992 and 2025. Suspension Parts are bought most frequently for the following model years: 2023, 2022, 2020, 2019, 2018, 2016, 2015, 2014, and 2013.

What are the cheapest Suspension Parts for my 2021 Audi S4?

The cheapest 2021 Audi S4 Suspension Parts we carry in stock are:

What types of Suspension Parts do you sell for my 2021 Audi S4?

As of 3/1/26, these are some of the most in-demand types of Suspension Parts for a 2021 Audi S4:

Can I get help with 2021 Audi S4 Suspension Part orders?

Contact our customer support team, by chat or phone, through the help desk page, where you can find instant answers about Audi Suspension Parts and more.

What is your return policy for Audi S4 Suspension Parts?

Advance Auto Parts keeps returns simple. For new Audi S4 Suspension Parts and accessories, your online orders can be returned, in their original condition, within 45 days. For requirements, see the returns page.