2746718 Sensor Gp-Pressure Fits Caterpillar ModelsOne New Aftermarket Replacement Pressure Sensor (Sensor Gp Pressure) for Caterpillar (Cat) Engines and Equipment This aftermarket replacement Sensor Gp Pressure (274 6718) monitors fluid or boost pressure in Caterpillar diesel engine systems, including oil pressure and fuel rail pressure circuits on C series engines. It is a direct fit, 3 pin electrical sensor used across a wide range of Caterpillar construction, mining, agricultural, and power