THIS IS A NEW ORIGINAL STYLE FUEL SENDING UNIT FOR CHEVROLET AND GMC TRUCKS 1954 THRU 1959. THIS ONLY FITS THE ORIGINAL TANKS MOUNTED IN THE CAB BEHIND THE SEAT. THIS IS A 30 OHMS SENDING UNIT AND ONLY WORKS WITH ORIGINAL STYLE GAUGE. THIS CAN BE USED WITH 6 OR 12 VOLT SYSTEMS. COMES WITH RUBBER GASKETS. NO OTHER HARDWARE IS INCLUDED.SHIPPING WORLD WIDE WITH POST OFFICE SERVICE.