7PCS O2 Sensor & Oil Pressure Socket Set. Dive into automotive precision with our expertly crafted 7PCS O2 Sensor & Oil Pressure Socket Set. Why Choose Our O2 Sensor & Oil Pressure Socket Set?. Manufacturer Part Number: Oxygen Sensor Socket Set Unit Quantity: 4.93 Tools Included: Sockets,Oxygen sensor socket,Vacuum switch socket,Thermal sensor switch socket,Offset oxygen sensor wrench,Heated oxygen sensor socket Size: 7pcs.