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Caterpillar · Probes & Sensors
1619930
In stock · ships from Knoxville
This is an oil pressure sensor (often called an oil sending unit) for Caterpillar diesel engines.
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Verified fitment for 4 applications
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All confirmed applications for this part number.
Caterpillar
Caterpillar
Also fits many other Cat industrial, generator, and excavator engines (e.g., 3412, 3456, W345B II, 365B, R1600G). Confirm fitment using OEM part number 161-9930, 111-2350, or 3E7570.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 9 of 9.
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It monitors engine oil pressure and sends a signal to the gauge or engine control module. A failing sensor can cause inaccurate pressure readings, warning lights, or engine protection derates. You typically replace it when the gauge is erratic, reads zero despite proper oil level, or diagnostic trouble codes indicate sensor circuit faults.
Part Number: 1619930
OIL SENDING UNIT
Dealer: KP Services Crossville
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