KS-ecs 5N0035501/5N0 035 501 for VW Passat B5 b5.5 Golf GTI Bora Jetta Polo MK4B5 OE Style Roof Mast Whip Antenna Base OEM part #: 5N0035501 Pitch thread: 5mm Has not the amplify/ extend function Please screw the antenna to the base with clockwise direction Please note the vehicle filter does not fit all versions of the compatibility as it is for search purpose only; please review our interchange below or e-mail us your full reg number or chassis number/ V.I.N?number prior to ordering