SKU: 51328645970

034Motorsport Density Line Upper Control Arm Kits - Audi / Bentley / Porsche / 4M / RSQ8 / Bentayga / E3 Cayenne & More

Sale price$152.10 Regular price$169.00
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Ships within 48 hours · Estimated delivery Aug 18 - Aug 23

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Description

034Motorsport Density Line Upper Control Arm Kits - Audi / Bentley / Porsche / 4M / RSQ8 / Bentayga / E3 Cayenne & MoreLuxury performance SUVs like the RSQ8, Bentayga, Cayenne, and Urus are celebrated for their commanding presence and impressive power, but their handling performance often comes at the cost of suspension comfort and precision. The factory front upper control arms are designed to prioritize a smooth, compliant ride, but as they wear out, often as early as 40,000 miles, steering responsiveness and stability can decline, especially under spirited driving

Luxury performance SUVs like the RSQ8, Bentayga, Cayenne, and Urus are celebrated for their commanding presence and impressive power, but their handling performance often comes at the cost of suspension comfort and precision. The factory front upper control arms are designed to prioritize a smooth, compliant ride, but as they wear out, often as early as 40,000 miles, steering responsiveness and stability can decline, especially under spirited driving conditions. Engineered as a direct replacement for the factory front upper control arms, Density Line Control Arms feature high-durometer rubber bushings along with premium ball joints to significantly reduce unwanted suspension deflection. This translates to a level of precision and handling performance that is truly befitting of the world’s finest luxury SUVs. The result is a front suspension that feels as smooth and refined as the factory setup, but with significantly enhanced durability and control, giving you the confidence to push your SUV to its limits on the street, backroads, or track.

The factory front control arms are an integral part of the suspension, especially on enthusiast-owned vehicles which are driven hard on the street, backroads, or the 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 front-end feel and allow camber adjustment to significantly improve handling. With 034Motorsport’s Density Line Upper Control Arms installed, you can enjoy the perfect synergy of luxury, performance, and reliability. Density Line Non-Adjustable Control Arms:

034Motorsport's complete Density Line Upper Control Arms are designed to be a performance replacement for all four factory front upper 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.

Density Line Non-Adjustable Control Arms:

034Motorsport's complete Density Line Upper Control Arms are designed to be a performance replacement for all four factory front upper 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 Control Arms
  • Offers Improved Handling Feel & Steering Precision
  • High-Durometer Rubber Bushings (70 Durometer)
  • Includes New Hardware
  • Includes:
    • Front Upper Control Arms - Front (Left & Right)
    • Front Upper Control Arms - Rear (Left & Right)
    • Installation Hardware

OE PART INTERCHANGE:

Upper Arms:

  • Upper front left: 4M0 407 505 B
  • Upper front right: 4M0 407 506 B
  • Upper rear left: 4M0 407 509 B
  • Upper rear right: 4M0 407 510 B

Installation:

  • It is imperative that the suspension be compressed to static ride height before any suspension pivot bushings are tightened, as per the factory installation procedure. If this is not done, the bushings will tear prematurely as the twisting forces on them will be much higher than is intended. 034Motorsport's Limited Warranty on Density Line products does not cover premature failure due to improper installation or use.
  • We highly recommend professional installation for this product.

Warranty:

  • 1 Year Limited Replacement Warranty (If you encounter any issues with our products outside of the warranty period, we will work with you to provide a resolution.
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: 51328645970

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4.6 ★★★★★
Based on 29 reviews
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N
Verified Purchase
Noodlespark
Lexington, US
★★★★★ 1
Bad fit
Style: C20 Parts * 19pcs
The dust bags do not fit properly. You can get the base to acknowledge them if you place them just right, but any little movement can move them out of place. I have to constantly reseat them because the base thinks there is no bag. The stock bags do not have this problem. Edit: It has gotten to the point where it is constantly flipping between registering and not registering the bag. Changing to 1 star because they are unusable. If I'm not there to fix it, the task fails every time.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on January 29, 2026
A
Verified Purchase
Amazon Customer
Grantham, US
★★★★★ 5
Great product
Style: C20 Parts * 19pcs
Fits great
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 25, 2026
T
Verified Purchase
Tatiana
San Leandro, US
★★★★★ 3
Dust bags not compatible
Style: C20 Parts * 19pcs
Dust bags do not work. Not compatible as described, everything else works
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 1, 2026
D
Verified Purchase
Dashiel Castellanos
Houston, US
★★★★★ 5
Kit de Respuestos
Style: C20 Parts * 19pcs
Excelente Kit de respuestos para para mi Robot de Limpieza, ya los instalé y súper bien , me gustaron mucho
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on March 21, 2026
R
Verified Purchase
R. V.
Grantham, US
★★★★★ 2
Not compatible with eufy Omni C20.
Style: C20 Parts * 19pcs
The filters are too small. To avoid dust laden air from just going around them I put pieces of paper around the edges as spacers. But they're also shorter too. No chance of a reasonable seal. Then the vacuum bags are the wrong size too. The robot gives me an error message saying "no vacuum bag is detected". The mop still works, but no vacuum action. I only bought this kit because the one I was using (that works) was temporarily unavailable. Never again.
WAS THIS REVIEW HELPFUL?YesReportShare
Reviewed in the United States on April 19, 2026

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