Description QSM11 Marine OEM application harness. Mounted on Engine. Links 50 Pin OEM ECM connector to 40 pin Engine to VIP connector (or C Command Connect) 19 pin Drive application harness connector 4 pin ECM power connection 9 Pin Cummns Service tool Connector 4 pin configuration connector (master/slave, port/stb) Starter solenoid. Many different configurations available, This part supersedes most, call with your engine serial and we can confirm.