FILL NECK REPAIR KIT WILL REPLACE THE PLASTIC NECK WHICH WAS MOLDED INTO YOUR GENERAL MOTORS FUEL TANK.

DUE TO A MANUFACTURING FLAW MANY OF THESE NECKS WILL BREAK LOOSE FROM THE TANK CAUSING GAS TO LEAK OR SETTING OFF AN EVAP LEAK CODE.
THIS KIT WILL SAVE YOU FROM HAVING TO BUY AN EXPENSIVE NEW TANK OR HAVING TO SEARCH FOR A HARD TO FIND USED TANK WHICH MAY HAVE THE SAME PROBLEM EACH REPLACEMENT NECK IS EXPERTLY CRAFTED FROM ALUMINUM AND COMES COMPLETE WITH UHMN INNER AND OUTER GASKETS AND VITON O-RING.
A SPRING LOADED BACK FLOW / ROLL OVER VALVE IS MADE TO THE SAME SPECIFICATIONS AS THE ORIGINAL.

FITS ALL GM PLASTIC TANKS THAT HAVE A 1.25" FILL NECK WHERE THE RUBBER MEETS THE TANK. THE PIPE LEADING TO THE FILL NECK ON THESE VEHICLES IS 1".