Land Rover Discovery Sport L550 Rear Differential Diff FK72-4N053-AB WARRANTY

Listing details

The differential is sold with a 90-day warranty! It was tested before removal and is in full working order.

Land Rover Discovery Sport L550 Rear Differential Diff is an original drivetrain component designed for the rear axle of Land Rover vehicles equipped with a diesel engine and an automatic transmission. This used differential ensures proper torque distribution to the rear wheels, which translates into stable handling, predictable traction, and safe drivetrain operation during daily use.

Specifications and technical data

• SKU: LR073539
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR073539
• Substitutable numbers: LR072726, LR073539, FK724N053AB, FK72-4N053-AB, FK724200AA, FK72-4200-AA, GJ324200AA, GJ32-4200-AA
• Location on the vehicle: Rear
• Fuel type: Diesel
• Gearbox type: Automatic
• Category: Differentials

Purpose and function in the drivetrain

The presented rear differential is specifically designed to work with the rear-wheel drive system in the Discovery Sport L550 model with a diesel engine and automatic transmission. Its task is to precisely transfer torque from the driveshaft to the half-shafts, while simultaneously compensating for the difference in wheel rotational speed during cornering and driving on uneven surfaces. A properly selected differential reduces tire wear, stabilizes vehicle behavior, and supports the operation of traction control systems.

Compatibility and replacement numbers

The differential belongs to the Differentials category and has a dedicated OEM part number and a set of interchangeable numbers, which facilitates the selection of the correct component when replacing a factory part. This makes it possible to match the differential both by the manufacturer's number and by reference numbers used in service documentation and parts catalogs. Before purchasing, it is worth comparing the markings with the vehicle data to ensure full installation compatibility.

Technical characteristics and installation

The differential is intended for installation on the rear axle of the vehicle, in a drivetrain system working with a diesel engine and an automatic transmission. The design is prepared for operation in typical operating conditions for a Discovery Sport class SUV, including both city driving and routes with varying grip. The used condition of the component allows for an economical replacement of a worn differential while maintaining the manufacturer's original specifications.

During installation, it is recommended to use new consumables (gear oil in accordance with the manufacturer's recommendations, new seals, bolts of the appropriate strength class) and to check cooperating components, such as half-shafts, mounts, and suspension elements in the rear axle area. Properly performed installation minimizes the risk of noise, play, and uneven drivetrain wear.

Benefits of using an original differential

Using an original rear differential in the Discovery Sport L550 ensures:

• maintenance of factory handling characteristics and vehicle stability,
• proper cooperation with the four-wheel drive system and electronic systems,
• gear ratio consistency with the factory configuration of the diesel engine and automatic transmission,
• the ability to service according to the manufacturer's technical documentation.

For the user, this means predictable car behavior, a lower risk of improper drivetrain operation, and easier diagnostics in the future. Choosing an original component from the Differentials category is particularly important in vehicles with advanced traction and stability control systems.

Gear ratio selection and additional technical information

When replacing a differential, it is crucial to match the gear ratio to the drivetrain configuration used in the specific Discovery Sport L550 unit. Improper selection may result in improper operation of the automatic transmission, electronic system errors, or accelerated wear of drivetrain components. It is worth using the knowledge of specialized services or technical documentation to confirm gear ratio compatibility.

If you want to deepen your knowledge about selecting drive axles and differentials for your driving style, gear ratios, and drivetrain compatibility, the following article will be helpful: Dismantled drive axles and differentials – how to choose gear ratios for your driving style. You will find practical tips there that will facilitate an informed choice of component.

If you are planning a comprehensive repair or upgrade of the rear axle drivetrain area in your Land Rover and need other elements from the same group, such as differential housings, driveshafts, or mounting elements, check the available parts in the Land Rover Differentials category.