The Mack 1989 Through 2010 Magnetic Vehicle Speed Sensor is a reliable replacement for an original part that has failed due to fatigue or electrical malfunction. Made from quality components, this sensor ensures reliable performance and long service life. It features an aluminum housing material, spade terminal, and screw-in style, with one connector and two terminals. Sold each, this direct replacement is designed to match the fit and function of the original sensor on specified vehicles. It fits most Mack 1989-2010 models with Eaton transmission and has a direct OE replacement number of 25166488.