This engine gasket is designed for the 4.4 AJ Petrol V8, sealing combustion chambers and preventing oil or coolant ingress between mating engine surfaces. Sourced for the middle position within the engine assembly, one gasket is required per cylinder. Using an incorrect or worn gasket on this engine can result in compression loss, oil contamination, or coolant leaks, which may cause overheating or internal engine damage. Key Features Designed specifically for the middle cylinder position on the 4.4 AJ V8 engine One gasket required per cylinder - order quantity accordingly based on the number of cylinders being serviced Applies to engines up to serial number 5A348162 on Discovery 3; verify engine serial number before ordering When replacing, inspect mating surfaces for warping or corrosion and replace head bolts if recommended by the service procedure Vehicle Fitment Fits Discovery 3 (2005–2009), Range Rover (2002–2009), and Range Rover Sport (2005–2009), all equipped with the 4.4 AJ Petrol V8 engine, subject to engine serial number ranges specified per model. Not sure about fitment? Feel free to get in touch at [email protected]