6637Hub, Fiber Optics ElementPart number6637CategoryElectronicsMaterialPlasticAppears in4 setsThis part on Rebrickable ↗ (opens an external website)Available colours 1Light Gray#9BA19D4 sets – Sets in this colour: Light GrayNumbers at other sourcesSourceNumberLEGO75815Rebrickable6637Related partsPairs with6640 Cable, Fiber OpticsSets containing this partColourAll coloursLight GrayApply4 results9732-1Extreme Creatures1998149 partsRCX1× in this set6979-1Interstellar Starfighter1997292 partsUFO1× in this set8456-1Fiber Optic Multi Set / Multi Racer Set (with Fibre Optics)1996406 partsTechnic1× in this set8480-1Space Shuttle19961,366 partsTechnic1× in this set
