A seal arrangement for a needle valve in a fuel injector (100) includes a nozzle housing (122) forming an outer cavity (216) and defining a needle valve seat (218). A plurality of nozzle openings (204) are formed in the nozzle housing (122) and arranged symmetrically around its centerline at a first radial distance (R1). An outer needle valve (104) is reciprocally mounted in the outer cavity (216) and has a seat portion (224) arranged to abut the needle valve seat (218) when the outer needle valve (104) is seated or closed. A first ledge (502) formed on the seat portion (224) of the outer needle valve (104) sealably contacts the needle valve seat (218) along a first line contact seal (220) and a second ledge (508) formed on the seat portion (224) of the outer needle valve (104) sealably contacts the needle valve seat (218) along a second line contact seal (222).