What makes Whiteline different from OEM suspension components?

Whiteline suspension products are engineered for performance and durability well beyond OEM standards. While factory (OEM) components often use soft rubber bushings that degrade over time and under load, Whiteline uses advanced polyurethane and bushing technology that resists oil, heat, abrasion, and weathering. This results in sharper handling, more responsive steering, better load control, and significantly improved lifespan — without the harshness of traditional solid bushings.

Do I need a wheel alignment after installing Whiteline components?

It’s recommended to perform a wheel alignment after installation to ensure optimal performance and tire wear.

Are Whiteline Fixed Offset Upper Control Arms (UCAs) necessary for lifted vehicles?

They help maintain correct alignment and steering geometry after a vehicle is lifted.

Can I install Whiteline products myself?

Some products are DIY-friendly, but professional installation is recommended for suspension components.

Do Whiteline products come with a warranty?

Yes. Please refer to our warranty policy for details.

KTA416

Radius Arm Lower - Arm-Offset to Suit Ford Mustang S550 FM, FN

Radius Arm Lower - Arm-Offset to Suit Ford Mustang S550 FM, FN

Performance - adds +1.0deg caster - includes ball joint

Item Price

£286.21

SKU	KTA416
Installation Time	1.5 Hours
Fitting Position	Front Axle

Select your car to check fitment.

in stock

Ships within 48hrs

Description

Benefit Note:Complete replacement control arms featuring offset bushings that are primarily designed to improve traction and cornering grip under power. Increasing static caster to both front wheels. The special low compliance bushings reduce caster wind-back and maintain tighter tolerances between static and dynamic alignment settings. The additional caster coupled with the firmer bushings serve to dramatically sharpen initial turn-in response - forcing more consistent alignment angles through the corner due to the reduced bush compliance.

*All prices shown on the website include VAT. You will not be charged any additional fees related to tax. For international orders, VAT is removed, local import duties or taxes may apply but will not be charged by us.

Compatible Vehicles

Select any of the below vehicles to get detailed specifications on how this product interacts with your car. Including fitting positions, time and other vehicle specific information.

Specifications

Kit Specifications

Arm Type	Units	Ball Joint Included	Adjustable (Arms)	Alignment Type	Adjustment Type	On Car Adjustable
Alignment	Pair	Yes	Bushings	Caster	Eccentric	Yes

Arm Type	Alignment
Units	Pair
Ball Joint Included	Yes
Adjustable (Arms)	Bushings
Alignment Type	Caster
Adjustment Type	Eccentric
On Car Adjustable	Yes

Misc. Product Information

More Information
SKU	KTA416
Components Per	2 Arms
Kits Required	1
Sub brand	Performance
Product Note	Greatly increases control and confidence; the perfect, complete upgrade. Includes: 2 Arms
EAN	9319924480975

Installation & Fitment Guide

More Information
Install Guide	Downloads
Installation Time	1.5 Hours
Wheel Alignment Required	Yes
Recommend Wheel Alignment	Front Wheel Alignment

Shipping & Returns

Shipping Times

You can use the shipping calculator to find your shipping costs. The shipping calculator will also show all shipping prices.

Returns

We guarantee the fitment and quality of our products, but if you choose to return an item, we offer a generous 60 day returns policy. See our returns policy here.

Warranty

All products sold by Whiteline are covered by a national warranty. The product's warranty is subject to conditions from the date of purchase, unless otherwise stated on the item.

Warranty claims must meet certain criteria and be sent to Whiteline with a receipt to be eligible for a refund. See full warranty claim criteria here.