Cummins 3921277 12V Electronic Control Module - Used

Cummins 3921277 12V electronic control module, removed from service and sold as a used, untested take-out. OEM Cummins Engine Company label is fully legible: P/N 3921277, S/N 0631015855, 12V, Made in USA. Potted aluminum housing with integral mounting bracket and one sealed multi-pin connector.

Application: Not verified — the donor engine model, CPL, and serial number are unknown. This module must be matched by Cummins part number against your engine serial and configuration before purchase.

Condition: Used. Paint heavily chipped and worn, surface staining and light spot rust, connector pins tarnished. Housing appears intact and unopened. No electrical or functional testing has been performed and no operational claims are made.

Buyer must confirm fitment by part number, photos, dimensions, engine model, serial number, and application before purchase. Used marine part sold as-is unless otherwise stated. No returns on electrical, used, special-order, or installed parts.