Shop Caterpillar 3500 Series ECMs (Engine Control Modules) for heavy-duty CAT engines used in generators, industrial equipment, marine applications, mining machinery, oil and gas equipment, and other high-power applications. Our collection covers electronic control modules for popular CAT 3500 Series engines, including 3508, 3512, 3516, and related engine variants.

Caterpillar 3500 Series ECMs manage critical engine functions such as fuel delivery, engine speed, timing, sensor inputs, diagnostics, fault monitoring, operating parameters, and overall engine performance. Depending on the application, ECM programming or configuration may be required before installation.

Browse replacement, remanufactured, programmed, and unprogrammed CAT 3500 ECMs, Caterpillar engine control modules, electronic control groups, and engine controllers for generator, industrial, marine, and off-highway applications.

For accurate compatibility, always verify the ECM part number, engine model, serial number, arrangement number, application, and existing ECM information before ordering.