Air Fuel Ratio Sensor. K31 Turbocharger for Caterpillar CAT C12 Detroit Diesel Series 60 12.7L 23528065. Diesel Turbo for CAT C12 90-12 for Caterpillar up to 500HP OR7575. For Caterpillar for CAT C12 & Detroit Diesel Series 60 Engine. Turbo Model: K31 K31-4070MPCKA24.92RCAYD Compressor Inducer Dia: 71.00 mm Compressor Exducer Dia: 102.00 mm Compressor Wheel: […]