Bi-Directional Motor Controller - SG-MD-100 - Skid Steer Genius

This smart polarity-conversion module plugs inline with your existing wiring and turns four basic switched 12V inputs into two true forward/reverse 12V outputs. The result: you can drive an electric motor or linear actuator in either direction using your machine’s standard button signals—perfect for older attachments that rely on 12V motorized functions.

Pricing note: the base price shown is for the controller only (no input harness). If you want to connect it to a machine/attachment setup, you’ll typically add an input harness so the control signals can reach the box mounted on the attachment.

Example use: Buffalo Turbine blower. Install this unit by connecting it directly to the blower motor. Then add the correct harness for your connector style: use a BPH-14 for a 14-pin system or a BPH-8 for an 8-pin system.

How it’s wired and how it works:

The controller has 4 inputs and 2 outputs. Each reversing output is created from a pair of momentary inputs—one input commands one direction, the other commands the opposite direction. For circuit 1, the two input pairs are Green/Orange and White/Red. If you only need one reversing output (like many blower setups), you’ll use just one of those pairs.

Connect one output to your motor leads. Don’t worry about initial polarity—this device reverses it internally to change direction.

Using the included connector, attach it to the motor input and plug one of the controller outputs into the matching receptacle. If the motor doesn’t respond as expected, swap to the other output plug. After that, one control button should run the motor one way, and a second button should run it the opposite way.

If you’re using a BPH harness, refer to the harness guide to choose which machine buttons feed each input pair—this gives you flexibility in mapping the controls exactly where you want them.