Land Rover Discovery Sport L550 Belt Tensioner Pulley GX73-6B248-AA

The Land Rover Discovery Sport L550 Belt Tensioner GX73-6B248-AA is an original part from the Tensioners and Rollers group, designed for the accessory drive system in the Discovery Sport L550 model. The precise design of the tensioner ensures stable belt guidance, which translates into uniform operation of the engine accessories and reduction of unwanted vibrations.

Specifications and technical data

• SKU: LR071712
• Mark: Land Rover
• Condition: Used
• OEM Part Number: LR071712
• Substitutable numbers: LR071712, GX736B248AA, GX73-6B248-AA
• Category: Tensioners & Pulleys

Purpose and Function of the Belt Tensioner

The belt tensioner in the Discovery Sport L550 is responsible for maintaining the correct tension of the multi-ribbed belt in the accessory drive system. Stable tension minimizes the risk of slippage, noise, and accelerated belt wear, and also supports the proper operation of components such as the alternator, power steering pump, and air conditioning compressor. Using an original solution dedicated to a specific Land Rover platform allows for maintaining the factory operating parameters of the system.

Benefits of Using an Original Land Rover Tensioner

Choosing a tensioner designed specifically for the Discovery Sport L550 primarily ensures a perfect fit and predictable performance under load. The design developed by the vehicle manufacturer takes into account the engine's operating characteristics, belt routing geometry, and the temperature range in which the system operates. Thanks to this, the element:

• supports uniform torque transfer to the accessories,
• reduces the risk of incorrect belt guidance during sudden RPM changes,
• helps reduce noise and vibrations in the engine bay,
• facilitates maintaining stable operating conditions for accessories over a longer service life.

Product Characteristics and Fitment

The belt tensioner designed for the Discovery Sport L550 has been developed as a component that works with the factory Land Rover accessory drive system. The appropriately selected spring characteristics and the geometry of the tensioning arm allow for maintaining the correct belt operating range across the entire engine RPM range. Using an original component from the Tensioners and Rollers group reduces the need for additional modifications during installation and facilitates future vehicle servicing.

Condition, Verification, and Practical Application

The item is offered as a used part, allowing for an economical repair of the accessory drive system while maintaining the original manufacturer's specifications. This type of component is particularly useful when replacing a worn or damaged tensioner, when symptoms such as noise from the belt area, unstable tension, or signs of excessive wear on the guide rollers appear. A properly selected tensioner helps restore the system's correct operation without interfering with other components.

Technical Support and User Knowledge

In case of upgrading or repairing the charging system in a Discovery Sport, while simultaneously replacing accessory drive components, it is worth expanding your knowledge on the operation of electrical components. Practical tips on selecting and using charging-related components can be found in the article When is it Worth Replacing an Alternator with a Used One: A Practical Guide for Drivers, which helps to better plan service work within the engine accessories.

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other parts from the same group, such as additional guide rollers, auxiliary tensioners, or belt guide elements, check the available parts in the Land Rover Tensioners and Rollers category.