Land Rover L550 Rear Axle Suspension Subframe Carrier Cross Member FK72-5K091-AH

The Land Rover Discovery Sport L550 Rear Suspension Cradle FK72-5K091-AH is an original structural component for the rear chassis, belonging to the Longitudinal Body Frame Parts and Brackets group. It provides stable support for the rear suspension components, maintaining proper geometry and body rigidity during everyday use. This solution is designed for users expecting factory fitment and predictable vehicle behavior.

Specifications and technical data

• SKU: LR078717
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR078717
• Substitutable numbers: LR078717, FK72-5K091-AH, FK725K091AH
• Location on the vehicle: Rear
• Part type: Subframe
• Category: Frame Rails & Subframes

Function and Role of the Rear Suspension Cradle

The cradle, also known as the suspension subframe, serves as the main support for components operating in the rear drivetrain. It is responsible for:

• transferring loads from the suspension to the body structure,
• maintaining constant wheel geometry on the rear axle,
• ensuring adequate rigidity of structural connections,
• limiting unwanted displacement of suspension elements.

By using an original cradle dedicated to the Discovery Sport L550, the drivetrain maintains the parameters intended by the manufacturer, which translates to predictable handling and vehicle stability.

Purpose and Vehicle Fitment

The presented cradle is designed for installation in the rear of the vehicle, in the area where key suspension components are mounted. The construction is adapted to the body architecture of the Land Rover Discovery Sport L550, allowing for:

• precise alignment with mounting points in the frame and body,
• proper positioning of suspension elements relative to the vehicle's axis,
• preservation of factory reference points for toe and camber adjustments.

Such fitment reduces the need for assembly modifications and facilitates service work, especially after accident repairs or replacement of damaged structural elements.

Characteristics of a Used Component

The offered cradle is a used part, an original Land Rover component. A used component of this type is often chosen for structural repairs because it:

• retains factory geometry and mounting points,
• is manufactured according to the vehicle manufacturer's standards,
• allows for economical rebuilding of the rear suspension while maintaining appropriate performance parameters.

Before installation, standard verification of the condition of load-bearing surfaces, mounting points, and potential anti-corrosion treatment according to workshop procedures is recommended.

Application in Accident Repairs and Upgrades

The rear suspension cradle is often replaced after mechanical damage, corrosion, or deformations resulting from collisions. Replacing this component allows for:

• restoring correct rear axle geometry,
• eliminating problems with toe adjustment,
• reducing uneven wear of tires and suspension components,
• stabilizing vehicle behavior during braking and cornering.

More practical tips on body and chassis rebuilding after a collision can be found in the article Bodywork and Chassis – Accident Repairs Using Used Parts, which describes, among other things, the selection of used structural components and service procedures.

Why Choose an Original Land Rover Cradle

Using original structural components in the Land Rover Discovery Sport L550 ensures consistency with the vehicle's factory design. For the rear suspension cradle, this means:

• maintaining the structural rigidity intended by the manufacturer,
• compatibility with factory suspension and body mounting points,
• easier geometry checks during and after repair.

For users considering the installation of used structural components, the guide Used Car Parts: Myths and Facts You Need to Know may also be useful, explaining how to make informed choices about salvaged parts.

If you are planning a comprehensive repair or upgrade of the rear suspension load-bearing area in your Land Rover and need other parts from the same group, such as additional brackets, longitudinal reinforcements, or mounting elements, check the available parts in the Land Rover Longitudinal Body Frame Parts and Brackets category.