034Motorsport Density Line Front Upper Control Arm Kit for Audi A4, A4 allroad, A5, S4 & S5 (2017–2024)

034Motorsport's Density Line Front Upper Control Arm Kit is a set of four performance replacement arms for the front upper control arm positions on the 2017–2024 Audi A4, A4 allroad, A5, S4, and S5, including Sportback models. Each arm uses 70 durometer rubber bushings, firmer than a soft factory bushing. The arms are engineered to limit unwanted deflection in the front suspension, and 034Motorsport rates the result as tighter handling and more precise steering response than new factory arms. The kit is a complete drop-in replacement for the factory upper arms and comes with new hardware. It is made in the United States.

This control arm kit carries a 24-month warranty.

The kit covers only the upper arms: four in total, front and rear on each side. The lower arms stay in place, which makes this a focused job for cars whose wear is concentrated up top. Upper control arms locate the top of the steering knuckle and pivot on bushings at the body end, so bushing condition directly affects how steady the front end feels over bumps and under braking. 034Motorsport was founded by Javad Shadzi in 2005 and develops performance parts and tuning for Audi and Volkswagen vehicles, with its engineering, manufacturing, and tuning departments housed at its Fremont, California, facility.

Technical Details

• Manufacturer: 034Motorsport
• Part number: 034-401-1072
• Product line: Density Line
• Position: front upper control arms
• Quantity: four arms, replacing all four factory front upper arms
• Bushings: 70 durometer rubber
• Includes new hardware
• Complete drop-in replacement for the factory upper arms
• Made in the United States
• Warranty: 24 months

Common Questions

Are the lower control arms included?
No. This kit contains the four front upper arms and new hardware only.

What symptoms suggest worn control arms?
Watch for play at the arm joints, uneven tire wear, trouble getting a proper alignment, steering wheel vibration at highway speed, and wandering or pulling.

PMB carries this upper arm set for owners refreshing the top of a worn front end.

Fitment & Compatibility

Check the fitment table below for the model years this kit fits. Send us your VIN and PMB will confirm the fit.