Description
The 161‑1703 Low Pressure Sensor is an essential safety component used in a wide range of Caterpillar machinery—including excavators, generators, articulated trucks, and other heavy equipment. It monitors vital pressure levels in systems such as engine oil, fuel supply, and air circuits. Built with robust technology—using either capacitive or strain-gauge sensing—it outputs a digital (ON/OFF) alert when pressure falls below a designated safe level, prompting either a dashboard warning or automated shutdown to prevent engine damage .
Key details:
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Part Number(s): 161-1703 (old format: 1611703)
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Technology: Capacitive or strain-gauge sensor
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Signal Output: Digital ON/OFF switch
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Applications: Used in systems like engine oil, fuel, air, exhaust after-treatment
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Compatible Equipment: Cat models C7, C9, C10, C12, C15, C18, 3456, 3512B, 3516C, 3508, 3512, plus excavators (e.g., 324D, 325D, 329D, 330C), articulated trucks (725, 730), and more PX Machinery+12KMP Brand Store+12Big Rig World+12Diesel Parts Direct+8Big Rig World+8Big Rig World+8
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Construction: Durable metal housing with sealed connector—resistant to vibration, heat, and fluid exposure
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Usage: Protects equipment by triggering alerts or shutoffs during low-pressure events, widely used in preventive maintenance for heavy-duty engines
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