Treat 311-7539 as a label number that still needs a visual check. Check the removed CAT unit before treating this page as a final match.
Useful photos show the label code, connector face, housing shape, and engine model. On excavators, loaders, generator sets, marine engines, and road machines, those small details often prevent a wrong shipment.
Another ecm can share the same look but carry a different application record. Send the part number, machine model, quantity, and destination with the enquiry. Short evidence helps the sales team compare the unit without turning the request into a repair discussion.
For nearby options, compare CAT electronic parts with CAT 206-2710 ECM and CAT 206-2700 ECM Label and Connector Buying Check.
