This page covers the Whiteline Adjustable Rear Upper Control Arm Set for the 2004-2011 Volvo S40. Placement: rear. The chassis code on the listing is P1. Whiteline”s note for this fit: Complete arm set with high performance bushings pre-installed. On-car turnbuckle adjustable control arms. The part number is KTA138A. The kit contains 2 arms.
The rear upper control arm helps decide how the top of the rear wheel leans, which makes it a main control for rear camber. A fixed factory arm offers little room to change that angle. This adjustable set gives the alignment shop a way to set rear camber to the target, which supports even tire wear and consistent grip.
Whiteline rates the install as moderate and lists about 2 hours. Plan on a wheel alignment afterward. To go with it on the Volvo S40, see Adjustable Rear Sway Bar Link, Adjustable Front Sway Bar Link, and Front Control Arm Lower Inner Front Bushing.
Features
Specifications
| Part Number | KTA138A |
| Part Name | Control Arms |
| Vehicle | 2004-2011 Volvo S40 |
| Chassis Code | P1 |
| Adjustable | Yes |
| Ball Joint Included | No |
| Bushings Included | Yes |
| Grade Type | Performance |
| Installation Difficulty | Moderate |
| Installation Time (hrs) | 2 |
| Kit Contents | 2 Arms |
| Vehicle Placement | Rear |
| Wheel Alignment Required | Yes |
| Notes | Complete arm set with high performance bushings pre-installed. On-car turnbuckle adjustable control arms. |


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