Land Rover Discovery 3 L319 Crankshaft Gear Pulley Sprocket 2.7 V6 4S7Q-6306-AE

Land Rover Discovery 3 L319 Crankshaft Gear Pulley Sprocket 2.7 V6 is a precision timing system component responsible for the stable transmission of drive from the crankshaft to other engine sub-assemblies. This component from the Tensioners and pulleys group comes from the manufacturer's original line, which ensures proper fitment and maintains the factory performance parameters of the power unit. This used part is a sensible choice for servicing the 2.7 V6 engine when you want to maintain a design consistent with Land Rover solutions.

Specifications and technical data

• SKU: LR005996
• Mark: Land Rover
• Condition: Used
• OEM Part Number: 4S7Q-6306-AE
• Substitutable numbers: LR005996, 4S7Q-6306-AE, 4S7Q6306AE
• Part type: Timing Belt Pulley
• Category: Tensioners & Pulleys

The role of the crankshaft sprocket in the 2.7 V6 engine

The crankshaft sprocket in the Land Rover Discovery 3 L319 2.7 V6 engine is responsible for precise synchronization of the crankshaft with other timing system components. A correctly selected and functional part reduces the risk of drive slippage, uneven engine operation, and accelerated wear of mating components. Replacing a worn sprocket is particularly important during comprehensive timing service, when the goal is stable engine operation across the full load range.

Compatibility and fitment for Land Rover Discovery 3 L319

The offered sprocket has been designed for use in the 2.7 V6 unit used in the Discovery 3 L319 model, which translates into proper fitment with the crankshaft and other drive components. Its original Land Rover origin ensures the maintenance of correct tooth geometry, the appropriate profile for working with the belt or chain, and long-term operational stability. As a result, this component can be used both for standard replacement and for more extensive engine overhaul work.

Application in the Tensioners and pulleys system

Although the crankshaft sprocket performs a distinct structural function, in service practice it is replaced together with elements from the Tensioners and pulleys group. This allows for:

• maintaining consistent wear across all mating components,
• reducing the risk of needing to re-enter the timing system in the near future,
• maintaining stable drive tension under various engine operating conditions.

This approach is particularly beneficial for vehicles operated in demanding off-road conditions or with high mileage, where predictability and repeatability of the drivetrain operation are important.

Characteristics of the used component

The presented crankshaft sprocket is a used part, which allows for optimizing service costs while maintaining the original design. In practice, this means the ability to use a component consistent with factory Land Rover solutions without having to resort to replacements with uncertain parameters. A used element of this type is often chosen for repairs where fitment to a specific engine version and maintaining the original operating characteristics of the unit are key.

Support in part selection and system expansion

If you are planning a comprehensive repair or upgrade of the engine area in your Land Rover and need other elements from the same group, such as guide pulleys, tensioning elements, or auxiliary idler pulleys, check out the available parts in the Land Rover Tensioners and pulleys category.

When selecting used components for the timing and drive system, it is also worth analyzing the differences between new parts and those from the secondary market in terms of durability, costs, and availability. The discussion included in the article Car parts – new or used? We compare costs, quality, and durability may be helpful in this regard, allowing you to better plan the service strategy for your vehicle.