Our mechanical temperature gauge that locates in the top of the water neck and sticks out of the hood on just about all early model Tractors. Models: B,IB,C,CA,RC,WC,WD, & WD45. One of the popular gauges we sell. Duplicate of original.
NOTE: Always clean out the threads with a NPT pipe tap before installing our Temp gauge. Also, use a little dab of pipe sealant for a no leak install.