New Product Release - Good to the last drop!

FASS Fuel Systems is proud to announce the newest addition to its product line. The STK-5500 & STK-5500B will be the sump of all sumps!

As you can see in the photo below, 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!

This sump is available in the part numbers:

STK-5500    This is an all inclusive kit for new installs.  It includes everything from our very popular 5/8" bulk head fitting to the 5/8" convoluted tubing traveling down to the sump and all the fittings you need for a professional installation.


STK-5500B    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.




STK-5500BO    This is the sump kit only. You do not have to drop the fuel tank and the fuel line will draw from the exterior bottom of the sump.