Home › Forum › Ask A Member › Johnson TD-15 or TD-20 › Re: Johnson TD-15 or TD-20
July 29, 2015 at 9:55 pm
#21197
On the port side of the powerhead, very near the bottom there is a flat rectangular region (On the TD20, the arched water line passes above this area).
The model ID is stamped there, along with the serial no.