Fuel filter WJI500040 fits the 2.4L Duratorq TDCI Puma engine fitted in Land Rover Defenders from 2007 onwards.
If you require the fuel filter head then see part number WJN500190.
gasket is a shaped sheet often made from rubber, paper or cork. Its role is to fill a space between two parts and act as a seal, thus preventing leakage into or from the parts when under compression.