Buying this motor is by far the cheapest way to fix a stuck T104 timer. Compared to the 1X cost of this motor, the complete mechanism costs about 2.6X, the mechanism in the inner box is about 2.9X, and the mechanism in the outer box is about 4.2X. But take your pick, even a complete mechanism will likely cost about a third of what the average pool professional will charge for the replacement. Replacing just the motor takes just a few minutes than a complete replacement of the mechanism whichβ¦