SKU: 25418702852

034Motorsport Density Line Control Arm Kit - Audi B9/B9.5 A4/S4/RS4/A5/S5/RS5 - 034-401-1074

Sale price$969.74 Regular price$1077.49
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Ships within 48 hours · Estimated delivery Sep 20 - Sep 25

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Description

034Motorsport Density Line Control Arm Kit - Audi B9/B9.5 A4/S4/RS4/A5/S5/RS5 - 034-401-1074034 Motorsport Density Line Control Arm Kit Audi B9 B9. 5 A4 S4 RS4 A5 S5 RS5 034 401 1074. 034 Motorsport Density Line Lower Control Arm Kits are available with Density Line Non Adjustable Upper Control Arms! Replace your vehicle's aging, worn control arms with these performance engineered Density Line units with adjustable upper arms to restore feel and improve handling precision beyond factory levels. Density Line (Non Adjustable): Direct

034 Motorsport - Density Line Control Arm Kit - Audi B9/B9.5 A4/S4/RS4/A5/S5/RS5 - 034-401-1074.

034 Motorsport Density Line Lower Control Arm Kits are available with Density Line Non-Adjustable Upper Control Arms! Replace your vehicle's aging, worn control arms with these performance-engineered Density Line units with adjustable upper arms to restore feel and improve handling precision beyond factory levels.

  • Density Line (Non-Adjustable): Direct replacement of the factory control arms, performance-engineered with Density Line bushings to restore handling precision beyond factory levels.

034Motorsport's complete Density Line Control Arm Kit with Non-Adjustable Control Arms and are designed to be performance replacements for all eight of the factory front upper and lower control arms. The result is tighter handling and more precise steering response than even brand new factory control arms can offer. In addition, adjustable upper control arms allow optimal alignment for your lowered or track driven vehicle.

The factory front control arms are an integral part of the suspension, but can start wearing out as early as 40,000 miles - especially on enthusiast-owned vehicles which are driven hard on the street or track. As the rubber bushings degrade and ball joints develop play, alignment is compromised and steering becomes less precise. This kit is a drop-in replacement with feature improvements over stock, that will tighten up the front-end feel!

DENSITY LINE NON-ADJUSTABLE CONTROL ARMS:

034Motorsport's complete Density Line Control Arms are designed to be a performance replacement for all factory front control arms. Featuring high-durometer rubber bushings and high-quality ball joints, Density Line Control Arms are engineered to limit unwanted deflection in the suspension, resulting in tighter handling and more precise steering response than even brand-new factory control arms can offer.

FEATURES:

Density Line Non-Adjustable:

  • Complete, Drop-In Replacement for Factory Upper & Lower Control Arms
  • Offers Improved Handling Feel & Steering Precision
  • High-Durometer Rubber Bushings (65-70 Durometer)
  • Includes New Hardware

WHAT'S INCLUDED:

  • Front Lower Control Arms - Front (Left & Right)
  • Front Lower Control Arms - Rear (Left & Right)
  • Density Line Upper Control Arms:
    • CNC Machined Billet Upper Adjustable Control Arms - Front (Left & Right)
    • CNC Machined Billet Upper Adjustable Control Arms - Rear (Left & Right)
    • Rubber Spherical Bearing Dust Boots
      Or
    • Front Upper Control Arms - Front (Left & Right)
    • Front Upper Control Arms - Rear (Left & Right)
  • Installation Hardware Kit

OE PART INTERCHANGE:

Upper Arms:

  • 8W0407505C
  • 8W0407506C
  • 8W0407509B
  • 8W0407510B

Lower Arms:

  • Control Arm Front Left: 8W0 407 151 A/B/C/D
  • Control Arm Front Right: 8W0 407 152 A/B/C/D
  • Control Arm Rear Left: 8W0 407 693 B
  • Control Arm Rear Right: 8W0 407 694 B
  • Ball Joint Front Right and Left: 8W0 407 689 B

FITMENT:

Make Model Years Chassis Engine
Audi A4 2017+ B9/B9.5 2.0 TFSI
Audi A5 2018+ B9/B9.5 2.0 TFSI
Audi allroad 2017+ B9/B9.5 2.0 TFSI
Audi RS5 2018+ B9/B9.5 2.9 TFSI
Audi S4 2018+ B9 3.0 TFSI
Audi S5 2018+ B9/B9.5 3.0 TFSI


INSTALLATION:

The installation of your Density Line Control Arm Kits, B9/B9.5 Audi A4/S4/RS4, A5/S5/RS5 is a straightforward process that will take approximately 4 hours to complete. 

Download the Density Line Control Arm Kits, B9/B9.5 Audi A4/S4/RS4, A5/S5/RS5 Install Guide

Shipping Notes
  • Free Standard Shipping on $100+ Orders to the USA.
  • Except Preorder products are shipped in 48 hours.
  • Delivery to the USA:
  1. Standard Shipping : 3-10 business days
  • If time is of the essence, please consider selecting expedited delivery for faster service.
Exchange/Return Notes
  • We offer a 30-day return/exchange service after receiving.
  • Final sale items are not eligible for returns or exchanges.
  • To process your return/exchange, please contact us at [email protected]
  • Please click here for more details>>> Return & Exchange Policy
SKU: 25418702852

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maria cano
Lake Worth, US
★★★★★ 3
No me quedaron
Size: 8, Color: Dense Smoke
No son del # vienen más pequeños
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Reviewed in the United States on April 7, 2026
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Kindle Customer
Boise, US
★★★★★ 5
Super fun!
Size: 8.5, Color: Red Pepper
These are so fantastic! The color is amazing! It is a bit on the tomato-red side of the color-wheel. The fit is great. They are comfortable from the 1st step. Easy to walk in.
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Reviewed in the United States on March 17, 2026
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Anapaula
Boise, US
★★★★★ 5
Love them
Size: 5.5, Color: Red Pepper
I have gotten so many compliments on these shoes! They’re true to size and comfortable. Because of the material feet might sweat easier if hot but they dry quick. Quality is great and the color looks good, it’s more of a orange/red color. I got a 5.5 size
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Reviewed in the United States on May 21, 2026
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Laura
Lake Worth, US
★★★★★ 5
Stylist and comfortable!!!
Size: 6, Color: Red Pepper
So comfortable and well made. I’m going to get these in multiple colors.
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Reviewed in the United States on June 11, 2026
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Ally
Lake Worth, US
★★★★★ 2
Not sturdy enough for me
Size: 8, Color: Chestnut
Really cute and well made but not sturdy. I rolled my heel within minutes of walking around the house. Ain’t nobody got time for that
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Reviewed in the United States on May 6, 2026

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