This filler cap is designed for the fuel or air system on Land Rover Series 2, 2A, and Series 3 vehicles, securing to a 3-lug fixing arrangement. A correctly sealing filler cap prevents fuel evaporation, contamination ingress, and maintains system pressure integrity; a failed or incorrect cap can introduce dirt into the fuel or air system, accelerating component wear. The 3-lug fixing type is specific to certain Series applications and is not interchangeable with other fixing configurations. Key Features Designed for 3-lug fixing filler necks - not compatible with earlier or later single-threaded or alternative fixing types Applicable to both fuel and air system filler points using this fixing arrangement Corresponds to OEM fitment specification for Series 2, 2A, and Series 3 Land Rovers Inspect the filler neck lugs for wear or corrosion when replacing the cap, as a damaged neck will prevent a secure seal Vehicle Fitment Fits Land Rover Series 2 and 2A (all engines, fuel and air applications) and Series 3 (all engines, fuel and air applications) where a 3-lug fixing filler cap is fitted. Not sure about fitment? Feel free to get in touch at [email protected]