This is a retaining nut used to secure the air intake grille on the Land Rover Defender, preventing ingress of debris and moisture into the intake tract. Correct fitment of this fastener ensures the grille remains firmly located, maintaining the integrity of the air intake system particularly in the off-road conditions the Defender is designed for. Using the correct OEM-specified nut avoids cross-threading or inadequate clamping force that can result in a loose or missing grille. Key Features Fastener designed to the original specification for the Defender air intake grille mounting Ensures correct torque retention without risk of stripping threads at the grille fixing point Direct OEM replacement; part number AJ608041 confirms fitment accuracy Check the condition of the mating threads and grille mounting tabs when replacing - often disturbed during air filter servicing Vehicle Fitment Fits Land Rover Defender across all engine variants from 1986 through to the end of Defender production, including 2007 and later models, within the fuel and air intake grille assembly. Not sure about fitment? Feel free to get in touch at [email protected]