Universal Extreme Accuracy 4 Wire Thread-in O2 Oxygen Sensor Take your GM TH400 transmission

Take your GM TH400 transmission to the next level with this premium heavy duty forward drum and 300M input shaft combo

Flat rubber bases with molded-in velocity stack type radius and step for smooth bore down from element to tube

block for added strength

using an O-ring to prevent leakage

They are manufactured from billet aluminum and require no drilling or welding for installation

Universal Extreme Accuracy 4 Wire Thread-in O2 Oxygen Sensor Take your GM TH400 transmissionThese easy to install oxygen sensors will accurately send data to your Speedmaster digital air fuel ratio gauge. The highest quality components are used to ensure an accurate, dependable reading.