This is an upgrade kit. It includes everything from the 5/8" convoluted tubing to the sump. This takes into account that you already have our very popular 5/8" bulk head fitting.As you can see in the photo above, there is no fuel line drawing from outside bottom of the sump! This sump is a ground breaking design which allows the user to draw fuel to within an 1/8th inch of the bottom of the sump.The 1st drawback of traditional sumps is that the fuel line traveling along the bottom of the fuel tank is exposed to road debris, which can and does rip fuel lines from the vehicle. The end result is an empty tank and frustrated sump owner! This risk has precluded countless of off road enthusiasts and truck owners who do not frequent pavement from purchasing a sump in the past. The engineering enhanced features of the FASS sump, STK-5500 & STK-5500B, have eliminated these risks!The 2nd drawback of traditional sumps is that once the fuel level in the bowl of the sump is lower than the diameter of the suction port, usually at least 1" from the floor of the sump, it will start to suck air. Now with the newest technology incorporated, fuel can be used all the way down to within an 1/8" of the floor of the sump. The benefits do not stop there, FASS then tapered the floor of the bowl to get even more usable fuel!! In our tests, we were able to travel at least 15 more miles drawing fuel from the sump with the new improved (patent pending) method!
