The Caterpillar 3126B 70-Pin ECM ECU Module Computer Part 149-6989-01 is a front placement Engine Control Unit (ECU) with a female connector type and 70 terminals. It requires programming and has an analog input and logic output connection. Made of aluminum, this bolt-on style ECU has a maximum amperage of 15A and is designed for easy installation. With the manufacturer warranty excluded, this United States manufactured module is a reliable choice for Caterpillar vehicles in need of an ECM replacement.
