Citroën Relay Peugeot Boxer Mk3 Rear Suspension Leaf Spring Single 5102EY

Citroën Relay Peugeot Boxer Mk3 Rear Suspension Leaf Spring Single is an original structural component designed for the rear axle, ensuring stable body support and predictable vehicle behavior under load. As part of the Leaf springs and springs category, this component is responsible for transferring forces from the road to the vehicle frame and maintaining proper suspension geometry. Using an OEM part is a sensible choice for maintenance repairs when you want to ensure factory fitment and maintain the driving characteristics of your commercial vehicle.

Specifications and technical data

• SKU: 5102EY
• Mark: Citroën
• Condition: Used
• OEM Part Number: 5102EY
• Substitutable numbers: 5102EY, 1440706180
• Location on the vehicle: Rear
• Part type: Leaf Spring
• Category: Leaf & Coil Springs

Purpose and function in the vehicle

The presented leaf spring is designed for installation on the rear axle of third-generation Citroën Relay and Peugeot Boxer commercial vehicles. It is responsible for:

• supporting the rear part of the body under variable load,
• maintaining the correct suspension height,
• damping deflections and stabilizing the vehicle while driving,
• transferring longitudinal and lateral forces between the axle and the frame.

Thanks to a properly selected leaf spring, the rear suspension maintains predictable operating characteristics, which translates into safe handling both when empty and fully loaded.

Benefits of using an original leaf spring

The original Citroën component ensures a design consistent with the vehicle manufacturer's factory specifications. In practice, this means:

• proper fitment to rear suspension mounts without modifications,
• maintaining the stiffness and deflection specified by the manufacturer,
• compatibility with other chassis components,
• reducing the risk of incorrect rear axle geometry alignment.

In the case of commercial vehicles, where the suspension operates under demanding conditions, using an original leaf spring translates into more even tire wear, driving stability, and better vehicle control during braking and maneuvers.

Characteristics of the used component

The leaf spring comes from an operated vehicle, which allows for a favorable cost-to-functionality ratio. The used component:

• is suitable as a replacement in rear suspension maintenance repairs,
• is effective for restoring the efficiency of a fleet or commercial vehicle,
• allows for maintaining the factory suspension operating characteristics without investing in a new set.

When replacing the leaf spring, it is recommended to check other rear suspension components, such as bushings, mounts, and links, to fully utilize the potential of the newly installed part.

Selection and application in the suspension system

To correctly select the leaf spring for a specific version of the Citroën Relay or Peugeot Boxer Mk3, it is worth paying attention to:

• the type of bodywork and vehicle type (van, chassis cab, etc.),
• the expected operational loads of the vehicle,
• compatibility with the used drive axle and mounting system.

For comprehensive rear suspension and chassis maintenance, specialized service guides may also be helpful, e.g., a practical guide on assessing the condition of used drivetrain components, which facilitates informed selection of parts from the secondary market.

Support in part selection and further system upgrades

If you are planning a broader modernization or repair of the rear suspension in your commercial vehicle, it is worth considering other elements from the Leaf springs and springs group to maintain the consistency of the entire system's operating characteristics. Useful information on selecting and operating suspension and drivetrain components can be found in our guide: how to safely buy used drivetrain and suspension components, which helps reduce the risk of unplanned vehicle downtime.