STC4072 Defender Fuel Filler Cap. Part Number: STC4072. Land Rover Defender New Fuel Filler Cap & Keys. Land Rover Defender (1987-1996). Defender Parts. Series 2 & 3 - Defender 90/110/130, Discovery 1,2,3,4,5 & Sport - Freelander 1 & 2 - Range Rover Classic, P38, L322, L405, Sport & Evoque.