Description
Application: Ammeter shunt for marine and industrial diesel engine instrument panels using Stewart Warner (and compatible OEM) ammeter gauges. Provides the calibrated voltage drop the gauge reads to display charging/discharging current.
Condition: Used take-off. Shows dirt, shop soiling, and light surface corrosion on the terminal studs; resistive element appears intact. Not bench tested; sold for its identification as a Stewart Warner shunt (visual match to p/n 813489).
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.