034Motorsport Density Line Upper Control Arm Kit - Audi 4M RSQ8, Bentley Bentayga, Porsche E3 Cayenne, & Lamborghini Urus - 034-401-1085
This Density Line kit replaces all four factory front upper control arms on the 4M Audi RS Q8, Bentley Bentayga, E3 Porsche Cayenne and Lamborghini Urus. 034Motorsport notes that the factory arms are tuned for a soft, compliant ride and can wear from as early as 40,000 miles, after which degraded bushings and ball joint play erode alignment and steering precision. These direct replacement arms use 70 durometer rubber bushings and premium ball joints to cut unwanted deflection, giving tighter handling and sharper steering response while keeping a smooth, refined ride. The kit includes new hardware and a 1-year limited replacement warranty, and 034Motorsport recommends professional installation with the suspension at static ride height before the bushings are tightened.
Features
- Replaces all four front upper control arms
- 70 durometer rubber bushings
- Premium ball joints
- Reduces suspension deflection for sharper steering
- Direct drop-in replacement for the factory arms
- New installation hardware included
- 1-year limited replacement warranty
Specifications
- Brand: 034Motorsport
- Product Type: Upper Control Arm Kit
- Version: Density Line, non-adjustable
- Bushings: 70 durometer rubber
- Includes: Front upper control arms, front and rear positions (L and R), installation hardware
- Replaces OE: 4M0 407 505 B, 4M0 407 506 B, 4M0 407 509 B, 4M0 407 510 B
- Warranty: 1-year limited replacement
- Part Number: 034-401-1085
Vehicle Compatibility: 4 applications across 4 makes. Select a make to view.
Audi (1)
| Model | Variant | Engine | Years |
|---|---|---|---|
| RS Q8 | 4M8 | 4.0 TFSI | 2020-on |
Bentley (1)
| Model | Variant | Engine | Years |
|---|---|---|---|
| Bentayga | MLB Evo | 3.0T, 4.0T, W12 | 2015-on |
Lamborghini (1)
| Model | Variant | Engine | Years |
|---|---|---|---|
| Urus | MLB Evo | 4.0T | 2017-on |
Porsche (1)
| Model | Variant | Engine | Years |
|---|---|---|---|
| Cayenne | E3 | 2.9T FSI | 2015-on |
Please confirm fitment against your vehicle before ordering. Contact us if you need help selecting the right part.