1463504 Switch As-Relay Fits Caterpillar Models
1463504 Switch As-Relay Fits Caterpillar Models
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One New Aftermarket Replacement Switch As-Relay for Caterpillar (Cat) Equipment
This aftermarket replacement Switch As-Relay (part number 1463504, also formatted as 146-3504) is a starter relay switch used in the electric starter motor circuit on Caterpillar construction and industrial equipment. The relay switch serves as an electromagnetic switching device that controls high-current flow to the starter motor, allowing a low-power ignition signal to safely energize the starting circuit and protect the electrical system from overload during engine cranking.
Compatible Models
Caterpillar (Cat): Please verify compatibility by serial number before ordering. This part fits Caterpillar equipment using OEM part number 146-3504 in the electric starter motor assembly. Consult your Cat parts manual or dealer to confirm fitment for your specific machine and serial number range.
Replaces Part Number(s):
1463504, 146-3504
New aftermarket replacement part - not remanufactured, not used.



