This solid state unit replaces the need for the thermistor located on the fuel sending unit. The thermistor activated your "low fuel" light when the fuel level receded below its mounting position on the fuel pick up tube. This new unit illuminates your low fuel light by sensing the position of the needle on your fuel gauge. You no longer "have" to use the three prong low fuel type of sending unit as this unit works with both the one and three pronged sending unit. Great for the person who cannot stand to have non functioning options in his classic and far superior to the thermistor system that burns up if you happen to run your car low on fuel on a regular basis. Comes with very detailed instructions on how to install on the backside of your instrument cluster and a three year warranty.
Fits all 1967-68 Mercury Cougar XR7 models, and 1967-68 Cougar and Ford Mustang with the low fuel option in the ultra rare convenience option.
Click here for detailed instructions.