Ford Focus Mk3 Facelift Front Right Lower Control Arm Wishbone ST250 RS 1866070

Ford Focus Mk3 Facelift Front Right Lower Control Arm Wishbone ST250 RS is a component from the Control arms and ball joints category, designed for operation in the front suspension on the right side. Engineered for the ST250 and RS versions, it ensures precise wheel guidance, stable cornering, and predictable vehicle behavior during dynamic driving.

Specifications and technical data

• SKU: 1866070
• Mark: Ford
• Condition: Used
• OEM Part Number: 1866070
• Substitutable numbers: F1F1-3A423-BAA, F1F13A423BAA, 1866070
• Location on the vehicle: Front, Right
• Part type: Control Arm & Ball Joint Assembly
• Category: Control Arms, Ball Joints & Assemblies

Purpose and function in the suspension

The presented lower control arm is responsible for maintaining the correct geometry of the front suspension on the right side, which translates into driving stability, effective force transfer from the road surface, and confident vehicle handling at higher speeds. In the suspension design of the ST250 and RS versions, it is crucial for maintaining system rigidity and the repeatability of alignment and camber settings. Thanks to its specific shape and mounting points, the control arm works in conjunction with other front suspension components, minimizing unwanted wheel displacement during braking, acceleration, and driving over uneven surfaces. This solution allows for predictable steering response and reduces excessive tire wear.

Benefits of using an original control arm

Using an original lower control arm in the ST250 and RS versions allows for the preservation of factory handling characteristics, which is particularly important in high-performance vehicles. Precise fitment to mounting points eliminates the need for modifications, and the geometry, consistent with the manufacturer's design, facilitates subsequent wheel alignment. The front right lower control arm in this model has been designed to operate in demanding conditions typical of sports-oriented vehicles. The appropriate structural rigidity supports body stability during sudden load changes, which translates into better vehicle control and more confident behavior in corners.

Vehicle placement and installation aspects

The component is intended for installation in the front of the vehicle on the right side, which is important when selecting the correct part for a specific suspension configuration. Correct placement on the vehicle ensures proper cooperation with the hub, steering knuckle, and other steering system components. Selecting the correct control arm for the ST250 or RS version helps avoid compatibility issues and reduces the risk of improper suspension operation. After installation, it is recommended to perform a professional geometry alignment to fully utilize the potential of the front suspension design and achieve stable, repeatable handling.

Condition and service application

The product comes from the Ford range and is intended for use as a replacement in case of wear or damage to the factory control arm in post-facelift Focus Mk3 models in ST250 and RS versions. It is suitable for both standard service maintenance and comprehensive front suspension rebuilding after a collision or intensive track use. Selecting the right lower control arm is important not only for driving comfort but, above all, for safety – this component is responsible for keeping the wheel in the correct position relative to the body, which has a direct impact on braking efficiency and vehicle stability in emergency situations.

Suspension system expansion and additional materials

If you are planning a comprehensive repair or upgrade of the suspension area in your Ford and need other components from the same group, such as additional control arms, ball joints, or mounting hardware, check the available parts in the Ford Control arms and ball joints category. To better understand the relationships between individual suspension components and the symptoms of their wear, it is worth consulting a guide describing shock absorbers, control arms, and stabilizers – you can find it in the article Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers, which helps in consciously planning service maintenance and part selection.