Engine Control ModuleEngine control module configured for K25 engine forklift platforms, this aftermarket replacement matches the original ECM's connector and footprint to coordinate fuel injection, ignition timing, and emissions feedback. It interprets crank, cam, throttle, and oxygen sensor inputs and reports faults through the diagnostic interface. Install when the OE controller fails or stores persistent codes that resist clearing. The sealed housing tolerates the vibration, heat, and dust typical of industrial forklift duty. Verify harness pinout and battery health before installation, confirm clean grounds, then clear stored codes and validate sensor readings fall inside expected calibration ranges.Aftermarket replacement part, cross-references original part number AC23710-GU30A.Need help confirming fit? Call (562) 693-7748 with your serial number.Part number variants: AC23710-GU30A, ac23710-gu30a, AC23710GU30A, ac23710gu30a ⚠ Warning: Some equipment has serial-number breaks that may not be reflected in the catalog. Contact us for clarification before ordering if uncertain.SCR Forklift Parts ships from Whittier, CA with next-day delivery available across the US when needed.