A mounting arrangement for mounting a fluid cooler to an engine case of a gas turbine engine, the mounting arrangement comprises at least one fixture adapted to be mounted to the engine case and defining a circumferentially extending channel for receiving at least one circumferentially extending flange of a cooler body of the fluid cooler. The at least one flange being free to slide in the channel of the at least one fixture in a circumferential direction of the engine case. The fixture may further comprise a clamping arrangement to hold the fluid cooler while allowing the same to thermally grow.