Speed Sensor Fits Detroit Diesel Series-60 Engines, designed for optimal performance. Featuring a precise M10 x 1.0 thread size and an overall length of 37-3/4, this sensor ensures accurate data transmission with its 2-pin, oval connector. It’s a direct replacement for OEM part number 23531531 and DDE 23531531. Not sure will this part fit? We can search quickly and confirm or find you the correct one! You need correct replacement? Just let us know and our parts specialist will help right away!