GENUINE LUCAS WATER PUMP. Land Rover Discovery 1 3.5 & 3.9 V8 EFI & Twin Carb up to VIN LA081990. Range Rover Classic 3.5 & 3.9 V8 EFI & Twin Carb to Engine Number 38D27237B. Unless you are 100% sure that this is the correct part number for your vehicle.