Ford Focus Mk2 Spring Strut Rear Left Right N/O/S Shock Absorber 4M51-18080-AAF

Ford Focus Mk2 Spring Strut Rear Left Right N/O/S Shock Absorber is an original component from the Shock Absorbers and Struts group, designed for installation on the left or right side of the rear axle. It ensures stable suspension operation, improves vehicle control, and helps maintain predictable car handling during daily use.

Specifications and technical data

• SKU: 4M51-18080-AAF
• Mark: Ford
• Condition: Used
• OEM Part Number: 4M51-18080-AAF
• Substitutable numbers: 4M51-18080-AAF, 4M5118080AAF, 1681184, 4M51-18080-AAG, 4M5118080AAG
• Location on the vehicle: Rear, Right, Left
• Part type: Damper
• Category: Shocks, Struts & Assemblies

Application and vehicle placement

The presented shock absorber is designed for installation on the rear axle of the Ford Focus Mk2, with the possibility of installation on both the left and right sides. This design simplifies part selection during servicing – one type of component can handle both sides of the vehicle, which facilitates repair planning and reduces the risk of ordering errors.

Technical and functional characteristics

The shock absorber works as a component of the suspension strut, responsible for damping vibrations and stabilizing body movements. Its task is to:

• control spring deflection and limit body roll on uneven surfaces,
• maintain constant tire contact with the road surface,
• improve braking efficiency thanks to more stable rear axle operation,
• increase the predictability of the car's behavior in corners.

Thanks to the factory damping characteristics, the shock absorber remains consistent with the vehicle manufacturer's specifications, which is important for drivers expecting standard, balanced handling without excessive suspension stiffening.

Original origin and installation compatibility

The component comes from the Ford OE line, which means it maintains factory operating parameters, mounting geometry, and compatibility with standard springs and suspension hardware. The original design facilitates installation in place of a worn shock absorber without the need for modifications, bushing adjustments, or changing additional components.

The product has an assigned OEM part number and associated interchangeable numbers, which facilitates compatibility verification with specific vehicle equipment versions in service catalogs and parts selection systems.

Condition, purpose, and benefits of replacement

The shock absorber is offered as a used original component, which represents a reasonable compromise between repair costs and maintaining factory suspension specifications. This type of part is particularly suitable for:

• maintenance repairs when the existing shock absorber shows leaks or loss of damping,
• restoring standard driving characteristics after unsuccessful suspension modifications,
• economical suspension rebuilding in cars used on a daily basis.

Replacing a worn component with a functional spring strut shock absorber improves vehicle stability, reduces excessive body roll, and can positively affect ride comfort and even tire wear.

Comprehensive suspension zone service and additional materials

If you are planning a comprehensive repair or upgrade of the suspension zone in your Ford and need other elements from the same group, such as additional struts, complete assemblies, or mounting brackets, check the available parts in the Ford Shock Absorbers and Struts category.

To better plan your suspension service and understand the relationships between shock absorbers, control arms, and stabilizers, it is worth reading the guide: Suspension system – a comprehensive guide to shock absorbers, control arms, and stabilizers. The article helps to assess when to replace individual components and how to approach repairs in a technically consistent manner.