Description
Application: Cummins front engine mount / support bracket, OEM casting 3977494, used on Cummins B-series (ISB / QSB / 6BT) diesel engines in marine, industrial, and on-highway applications.
Condition: Used take-off, cast iron, no visible cracks or damage, ready to reinstall.
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.