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161-1704 Pressure Sensor for Caterpillar | Aftermarket
The 161-1704 Pressure Sensor is a 3-pin low-pressure sensor for selected Caterpillar engines and equipment. It supports pressure sensing in air, fuel, engine oil, and other engine-related systems.
Product Description
The 161-1704 Pressure Sensor provides low-pressure sensing for selected Caterpillar applications. Its 3-pin electrical design allows the sensor to send pressure information to the equipment monitoring or control system.
Caterpillar lists this sensor for several engine-related applications, including air systems, fuel systems, engine oil systems, and exhaust after-treatment systems. The Cat parts catalog identifies 161-1704 as a 3-pin pressure sensor and lists applications across various engines and heavy-duty equipment.
The part can be used across a wide range of Caterpillar applications. Listed examples include C7, C9, C-10, C-12, and C-15 engines, as well as selected excavators, wheel loaders, motor graders, track-type tractors, generators, and other equipment. Because Caterpillar specifies pressure sensors by application, buyers should check the exact machine and configuration before ordering.
For B2B distributors, equipment dealers, repair shops, fleet maintenance companies, and aftermarket parts suppliers, the part number provides a straightforward way to identify the required replacement. When preparing an RFQ, buyers can provide the original part number together with the machine model or engine model to improve application matching.
For more products in this range, visit our [Caterpillar Sensors] category to find additional Caterpillar replacement sensors, including pressure, temperature, speed, and other engine-related sensing components.
Buyers who need to cross-check manufacturer information can also visit the [Caterpillar official parts resource]. The official Cat Parts Store provides part-number search and equipment selection tools for parts verification.
Product Information
| Item | Details |
|---|---|
| Part Number | 161-1704 |
| Product Type | Low Pressure Sensor |
| Sensor Type | Pressure |
| Connector | 3-Pin |
| Brand | Caterpillar |
| Application | Selected Caterpillar engines and equipment |
| Main Systems | Air, fuel, engine oil, exhaust after-treatment |
| Condition | Replacement / Aftermarket |
Common Application References
The Caterpillar parts catalog lists 161-1704 for selected applications including:
Engines: C7, C9, C-10, C-12, C-15, 3512B, 3516C, 3516E
Equipment: 324D, 325D, 330C, 330D, 336D, D6R, D6T, D7R, 950H, 962H, 966F II, 994F, 793D, 973D and other selected Cat models.
B2B Replacement & Wholesale Supply
This 161-1704 Pressure Sensor fits common aftermarket sourcing requirements. It can serve distributor stock programs, equipment repair orders, scheduled maintenance, and bulk replacement requirements.
When requesting a quotation, please send the part number, machine model, engine model, serial number, connector information, or photos of the original sensor. These details help reduce part-number and application errors.
Compatibility Note
Caterpillar equipment configurations can vary by model, production series, and application. Please verify the original part number and equipment information before purchase and installation. Caterpillar also recommends checking the owner’s manual or contacting a Cat dealer for application-specific confirmation.





