CAT 398-5399 Pressure Sensor Excavator Engine Parts for C9.3 C7.1 C4.4 3985399

CAT 398-5399 Engine Pressure Sensor

CAT Genuine Parts Specification  |  For C9.3 / C7.1 / C4.4 Excavator Engine Parts  |  Part No: 398-5399 / 3985399

Product Overview

This CAT 398-5399 (3985399) pressure sensor is an electronic sensing component designed for CAT C9.3, C7.1 and C4.4 diesel engines used in excavator applications. As a key item within the CAT Genuine Parts range of Excavator Engine Parts, the sensor continuously monitors engine operating pressure and converts it into a precise electrical signal for the engine control module, helping the ECM adjust fuel delivery and protect the power unit from abnormal pressure conditions.

The 398-5399 / 3985399 pressure sensor is built to CAT Genuine Parts specification, with a sealed housing and stable signal output designed for the vibration and temperature environment of CAT C9.3, C7.1 and C4.4 powered excavators. Replacing a worn or failed pressure sensor with this CAT pressure sensor restores accurate pressure monitoring and supports reliable engine protection, making it a practical choice for excavator engine parts maintenance, repair and overhaul programs.

Key Features

Specification

Application & Performance

• Designed for CAT C9.3, C7.1 and C4.4 diesel engines; suits excavator engine parts pressure monitoring system repair, replacement and engine service.
• The 398-5399 / 3985399 pressure sensor supports accurate signal transmission, helping the ECM keep engine operation stable under varied excavator load conditions.
• Connector and mounting dimensions follow CAT Genuine Parts reference data to simplify fitment for service teams working on CAT excavator engine parts.
• Each unit is inspected before packing to verify connector integrity and signal response, ready for direct installation on C9.3, C7.1 and C4.4 engines.

Why Choose This CAT Pressure Sensor

This CAT 398-5399 pressure sensor gives maintenance suppliers and equipment owners a dependable engine monitoring component for C9.3, C7.1 and C4.4 power units. It is listed under the CAT Genuine Parts range together with other Excavator Engine Parts such as regulators, filters, gaskets and cylinder components, allowing buyers to consolidate their CAT engine parts sourcing. The sensor 3985399 (without hyphen) is the same part for cross-reference convenience in catalogs and ordering systems.