2021 Audi S4 Steering and Chassis Parts

This suspension control arm and ball joint assembly is a direct replacement for the original equipment on specific vehicle applications. An industry-leading evaluation process ensures a smooth ride, directional stability and predictable dynamics.

Product Features:

• Trustworthy replacement – this control arm and ball joint assembly directly replaces the original assembly on specific vehicle applications
• Complete repair – each assembly includes pre-installed ball joint and bushings, saving time and labor
• Quality engineering – underwent industry-leading testing to ensure a smooth, stable and safe ride
• Durably designed – additional coatings offer long-lasting rust and corrosion resistance

This suspension control arm and ball joint assembly is a direct replacement for the original equipment on specific vehicle applications. An industry-leading evaluation process ensures a smooth ride, directional stability and predictable dynamics.

Product Features:

• Trustworthy replacement – this control arm and ball joint assembly directly replaces the original assembly on specific vehicle applications
• Complete repair – each assembly includes pre-installed ball joint and bushings, saving time and labor
• Quality engineering – underwent industry-leading testing to ensure a smooth, stable and safe ride
• Durably designed – additional coatings offer long-lasting rust and corrosion resistance

Cntrl Arm w Ball Jt

This suspension control arm and ball joint assembly is a direct replacement for the original equipment on specific vehicle applications. An industry-leading evaluation process ensures a smooth ride, directional stability and predictable dynamics.

Product Features:

• Trustworthy replacement – this control arm and ball joint assembly directly replaces the original assembly on specific vehicle applications
• Complete repair – each assembly includes pre-installed ball joint and bushings, saving time and labor
• Quality engineering – underwent industry-leading testing to ensure a smooth, stable and safe ride
• Durably designed – additional coatings offer long-lasting rust and corrosion resistance

This suspension control arm and ball joint assembly is a direct replacement for the original equipment on specific vehicle applications. An industry-leading evaluation process ensures a smooth ride, directional stability and predictable dynamics.

Product Features:

• Trustworthy replacement – this control arm and ball joint assembly directly replaces the original assembly on specific vehicle applications
• Complete repair – each assembly includes pre-installed ball joint and bushings, saving time and labor
• Quality engineering – underwent industry-leading testing to ensure a smooth, stable and safe ride
• Durably designed – additional coatings offer long-lasting rust and corrosion resistance

This high quality chassis part will improve overall vehicle handling, reduce tire wear and increase the life of other steering and suspension components. These chassis parts are manufactured to meet or exceed OEM.

Product Features:

• Rubber or Thermoplastic material
• No Squeak
• Restores vehicle handling
• Improves body roll

Stabilizer Bar Link

Carquest chassis provides the installation benefits of the aftermarket while providing high-quality, proven reliability. Carquest chassis has been rigorously quality-tested, meeting or exceeding OE specifications. Carquest chassis parts have been designed to provide a stable and safe ride to meet customer expectations and perform the way professional technicians demand.

Product Features:

• OE matched design for Form, Fit, and Function
• Advanced corrosion-resistant electro-coating to reduce rust
• Hex formed studs and/or wrench flats for ease of installation
• Hardware included for easier installation (where applicable)
• Hardware included for easier installation (where applicable)

By constantly introducing design enhancements that extend product life and simplify installation and replacement, MOOG has earned its reputation as the chassis industry’s Problem Solver.

Product Features:

• Improves upon OE designs
• Quiet, dependable operation
• Provides like-new steering, ease of installation and longer life
• Incorporates proven design and engineering features
• Greaseable socket reduces corrosion and wear by allowing new lubricant to flush contaminants
• Greaseable socket reduces corrosion and wear by allowing new lubricant to flush contaminants

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.

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.

The Lemfoerder Sway Bar Link is manufactured using only the highest quality materials and is designed to reduce road noise and vibration.

Product Features:

• OE-Equivalent and direct fit application
• Reduces squeaks, rattles, and vibration noise
• Resistant to oil and other contaminants
• Meets or exceeds OEM specifications

Our OE safety technology is fitted to millions of vehicles worldwide and we apply our OE expertise to our aftermarket steering portfolio. Delphi tests to the extreme for OE performance at every turn: our parts withstand temperatures below -40 degrees C and over 120 degrees C and are exposed to 720 hours of salt spray. Delphi’s extensive dimensional and material analysis ensures the very best compatibility between the OE and aftermarket part.

Product Features:

• Delphi sway bar links are fatigue tested to avoid failure
• Sway bar links manufactured with ultrasonic molding to help prevent future weld breakage
• Delphi machines to micron tolerances to guarantee durability and smooth joint operation
• Anti-Corrosion protection applied to each part for optimum corrosion prevention and enhanced aesthetics

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

Backed by superior materials and rigorous testing, MOOG sway bar bushings deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:

• PREMIUM MATERIALS — Made from high-quality natural rubber material for durability and ride performance
• EXTENDED SERVICE LIFE — Less prone to splitting, discoloring or cracking with age for long life
• HIGHLY PRECISE ENGINEERING — Optimized for quiet operation and resistance to wear, salt, road grime and oils
• RIGOROUS TESTING — Comprehensive testing throughout design and development processes by MOOG engineers for quality you can count on
• COMPREHENSIVE COVERAGE — Available for foreign and domestic nameplates
• Inner sleeve is phosphate coated for corrosion protection

The Febi Sway Bar Bushing is manufactured using only the highest quality materials and is designed to reduce road noise and vibration.

Product Features:

• OE-Equivalent and direct fit application
• Reduces squeaks, rattles, and vibration noise
• Resistant to oil and other contaminants
• Meets or exceeds OEM specifications

This high quality chassis part will improve overall vehicle handling, reduce tire wear and increase the life of other steering and suspension components. These chassis parts are manufactured to meet or exceed OEM.

Product Features:

• Rubber or Thermoplastic material
• No Squeak
• Restores vehicle handling
• Improves body roll

The Lemfoerder Sway Bar Bushing is manufactured using only the highest quality materials and is designed to reduce road noise and vibration.

Product Features:

• OE-Equivalent and direct fit application
• Reduces squeaks, rattles, and vibration noise
• Resistant to oil and other contaminants
• Meets or exceeds OEM specifications

The Febi Sway Bar Bushing is manufactured using only the highest quality materials and is designed to reduce road noise and vibration.

Product Features:

• OE-Equivalent and direct fit application
• Reduces squeaks, rattles, and vibration noise
• Resistant to oil and other contaminants
• Meets or exceeds OEM specifications

The Meyle Sway Bar Bushing is manufactured using only the highest quality materials and is designed to reduce road noise and vibration.

Product Features:

• OE-Equivalent and direct fit application
• Reduces squeaks, rattles, and vibration noise
• Resistant to oil and other contaminants
• Meets or exceeds OEM specifications

TRW sets the standard within the Aftermarket, with tests that go beyond the ordinary to ensure every chassis part we produce meets stringent vehicle manufacturer quality standards, in line with the Original Equipment specification. To help make sure that our parts can go the distance, TRW utilizes on the road tests and the most advanced test machines available, in both our Original Equipment and Aftermarket facilities as well as by independent testing labs. So you can be sure that TRW parts are tested for your safety.

Product Features:

• Long lasting dust covers made from the highest quality rubber that eliminate dust and water from entering the ball joint
• Low friction plastic bearings that enhance damping and reliability
• Manufactured using forged or cold formed steel
• Two-seat design is standard, and eliminates the need for a spring
• Top of the ball pins are polished
• Salt Spray Test (240hrs)
• Dynamic Test and Elasticity Test
• Original Equipment quality hardware installation accessories
• Acoustic measurements to ensure driver comfort
• Strength tests for durability

Backed by superior materials and rigorous testing, MOOG® ball joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:

• Easy to install.
• Construction and design validated by MOOG engineers
• Restores like-new steering and handling
• Designed to meet or exceed original equipment performance
• Broad coverage for foreign and domestic applications
• Engineered to provide long life and dependability

Backed by superior materials and rigorous testing, MOOG® ball joints deliver reliable performance you can count on. MOOG problem-solving innovations ensure fast, hassle-free installation.

Product Features:

• Easy to install.
• Construction and design validated by MOOG engineers
• Restores like-new steering and handling
• Designed to meet or exceed original equipment performance
• Broad coverage for foreign and domestic applications
• Engineered to provide long life and dependability

Delphi ball joints adhere to global OE technical requirements and undergo testing focused on strength and durability performance, safety critical tests for a safer driving experience. The ball joint push out test measures the force required to push out / remove the ball-pin from the housing. It is an important safety check to help ensure the part can withstand forces applied to the vehicle suspension system in real road conditions. The ball joint pull out test measures the force required to pull the ball-pin out from the housing. If the force required to remove the ball-pin is below the OE spec, there is a risk the joint could fail during normal driving conditions causing the vehicle to lose directional control. Additionally, Delphi’s new dust cover design features an improved Chloroprene Rubber (CR) formula that helps maintain its durability even in extreme temperatures, helping to protect the internal components and support the continued free movement of the ball joint.

Product Features:

• One of the industry leading ranges with global application coverage.
• Designed, engineered and manufactured to OE quality standards based on more than 100 years of experience in the design and manufacture of OE steering systems.
• First To Market parts (for vehicles still covered by manufacturers warranty)

This high quality chassis part will improve overall vehicle handling, reduce tire wear and increase the life of other steering and suspension components. These chassis parts are manufactured to meet or exceed OEM.

Product Features:

• Heat treated components
• Dust seal to prevent contamination
• Restores vehicle handling
• Restores OE alignment

The OCAP control arm is manufactured to exact OEM specifications providing original equipment quality, durability and performance.

Product Features:

• OE-Equivalent and Direct fit for easy Installation.
• Manufactured using high quality OE materials.
• Includes factory specified hardware.