O2 Sensors Test Equipment Flex Pipe Hose OXYGEN SENSORS Universal oxygen sensors are used in Pre-OBDII applications. A malfunctioning oxygen senor can lead to catalytic converter failure, so be sure to test and replace any defective sensors. Click Here To Learn more about Oxygen Sensors. Part No. Description 10016 1-Wire Direct-Fit O2 Sensor (GM) 10017 3-Wire Direct-Fit O2 Sensor Female Clip (Chrysler) 10018 3-Wire Direct-Fit O2 Sensor Male Clip (Chrysler) 10014 3-Wire Universal O2 Sensor 10015 4-Wire Universal O2 Sensor 10011 One Wire Universal O2 Sensor 10013 Toyota O2 Sensor W/Flange 10012 Two Wire Universal O2 Sensor TEST EQUIPMENT The Only Way To Be Sure Is To Run A Test. Catalytic converter diagnostics require specific test equipment to determine the reason for a converter failure and to help prevent a recurrence of the initial problem. The following test equipment simplifies the testing procedures and takes the guesswork out of converter and oxygen sensor replacement. PART# 10304 -Oxygen Sensor Tester Quickly checks Oxygen Sensor to determine if the sensor is operating properly. (9 volt) PART# 10338 - Digital Thermal Sensor Gun with Laser Pointer Provides a fast and easy way to identify a potentially non-functioning catalytic converter using a reading from in front of the converter, a reading after the converter and comparing temperatures to verify that a catalyst reaction is taking place. (9 volt) Part# Description 10244 Flex Pipe 1-3/4" I.D. x4" 10246 Flex Pipe 1-3/4" I.D. x6" 10248 Flex Pipe 1-3/4" I.D. x8" 10250 Flex Pipe 1-3/4" I.D. x10" 10260 Flex Pipe 2" I.D. x10" Part# Description 10135 Hose 1/2" x 10' 10136 Hose 3/4" x 10'