Ford Transit Custom Rear Leaf Spring Suspension 2.0 Diesel 2275738 FK21-5560-AB

Ford Transit Custom Rear Leaf Spring Suspension 2.0 Diesel is a component from the Leaf springs category, designed for the rear axle of Ford commercial vehicles with a diesel engine. This solution is engineered for stable handling, safe load-bearing, and predictable vehicle behavior in daily operation.

Specifications and technical data

• SKU: FK21-5560-AB
• Mark: Ford
• Condition: Used
• OEM Part Number: FK21-5560-AB
• Substitutable numbers: FK21-5560-AB, FK215560AB, 2359769, FK21-5560-AC, FK215560AC
• Location on the vehicle: Rear
• Fuel type: Diesel
• Part type: Leaf Spring
• Category: Leaf & Coil Springs

Purpose and function in the suspension system

The rear leaf spring in the Ford Transit Custom is responsible for supporting the rear of the vehicle body, controlling suspension deflection, and ensuring proper load distribution while driving with cargo. Combined with shock absorbers, it forms a system that stabilizes the vehicle during acceleration, braking, and traversing uneven surfaces, which is crucial for commercial vehicles often operating at maximum payload capacity. This component is dedicated for installation on the rear axle in 2.0 diesel engine versions, ensuring the suspension characteristics are consistent with the weight of the powertrain and the typical utility load of this model.

Benefits of using an original leaf spring

Using an original Ford component from the Leaf springs group allows you to maintain the factory suspension performance characteristics. This means predictable deflection under load, appropriate lateral stiffness, and proper interaction with other rear suspension components. The main advantages of installing this leaf spring in a Ford Transit Custom include:

• maintaining vehicle stability when fully loaded,
• more controlled body roll in corners,
• reduction of suspension bottoming on uneven surfaces,
• better force transmission to the body and frame under intensive operating conditions. As a used part, this leaf spring represents an economical service solution for fleets and individual users who want to restore proper suspension operation without investing in a complete new system.

Compatibility with the 2.0 Diesel powertrain

The presented rear leaf spring is intended for Ford Transit Custom versions with a 2.0 diesel engine, which is important for properly tuning the suspension to the vehicle's weight and the engine's operating characteristics. This ensures consistency between the powertrain and the suspension, which translates into predictable handling both when empty and under full load. Selecting a component compatible with the fuel type and vehicle configuration reduces the risk of excessive deflection or excessive stiffness, which could negatively affect ride comfort, tire durability, and cargo transport safety.

Practical service application

Replacing the rear leaf spring is recommended when symptoms appear such as excessive "sagging" of the vehicle rear, uneven deflection between the left and right sides, noticeable suspension knocking, or visible damage to the leaves. Installing a properly selected component allows for restoring the correct geometry of the rear of the vehicle and improving stability when driving with a load. Due to the nature of leaf spring operation in a commercial vehicle, this component is particularly important for transport companies, mobile service providers, and users who regularly utilize the full payload capacity of the Transit Custom.

Expanding knowledge about leaf spring suspension

If you want to better understand the differences between stock and sport suspension, the impact of leaf spring design on vehicle handling, and the principles of safely selecting used suspension components, it is worth checking out our expert material: Stock vs. sport suspension – design differences and is it worth buying used suspension parts?. If you are planning a comprehensive repair or upgrade of the rear suspension area in your Ford and need other components from the same group, such as additional leaves, leaf springs, or mounting brackets, check out the available parts in the Ford Leaf springs category.