This Engine Control Unit (ECU) is an OEM part for Cummins ISB 6.7 diesel engines. It comes with a pin terminal type and is easy to install. It is compatible with left side placement on the vehicle. This ECU is perfect for those looking to replace their old or faulty ECU without having to worry about compatibility issues. It is a reliable and genuine OEM part that will ensure the proper functioning of your Cummins ISB 6.7 diesel engine. This Ecm is used, you need to reprogram the Ecm. With your engine serial no.