Fits 1996 2004 Mustang GT 4.6L Replacement Throttle Position Sensor 1685 map sensors 5 V8 1977 1987 blh 5 V8 1977 1987 Ford F 350 351 5 Replacement Header Gaskets for 283 400 Small Block Chevy full length headers The sensor is usually located on the butterfly spindle or shaft so that it can directly monitor the position of the throttle for proper fuel delivery and ignition etc BBK Performance supplies a new throttle position sensor on most of their throttle bodies but if you have a stock or even aftermarket TPS sensor that is suspect and needs replacing then these direct replacement BBK Performance throttle position sensors are what you need to get your car running properly again