Pump High Pressure Sensor Fit for Caterpillar CAT E320C E312C 221-8859 2218859

High Pressure Sensor for Caterpillar

This high pressure sensor is a direct replacement part for Caterpillar excavators, providing precise hydraulic pressure monitoring for optimal machine control. Compatible with Caterpillar E320C and E312C models, it replaces OEM part number 221-8859 (also 2218859) to restore accurate pressure feedback.

Overview

This high pressure sensor is designed to measure hydraulic system pressure and transmit data to the machine's control unit, ensuring efficient operation. It is a dependable replacement for Caterpillar E320C and E312C excavators, carrying cross-reference 221-8859 for easy identification. This high pressure sensor helps maintain proper hydraulic function and prevents costly downtime.

Built For Performance

• Precision-built sensing element delivers stable pressure readings under load
• Corrosion-resistant body withstands harsh hydraulic fluids and weather
• Standard electrical connector allows plug-and-play installation
• Meets OEM pressure range specifications for excavator systems
• Compact design fits in tight engine or pump compartment spaces

Fits These Machines

• for Caterpillar E320C
• for Caterpillar E312C

On-The-Job Use

• Used in excavator hydraulic pumps to track main pump output pressure
• Supports automatic pressure compensation during heavy bucket loads
• Informs operators of system pressure changes for safer operation
• Assists in troubleshooting hydraulic system faults quickly

Specs At A Glance

Good To Know

Q: Is this high pressure sensor interchangeable with the original Caterpillar 221-8859 part? A: Yes, it is designed as a direct replacement for 221-8859 and 2218859, matching the original sensor's function and fitment for E320C and E312C models.

Q: How do I know if this sensor is failing before installation? A: Common signs of a bad sensor include erratic hydraulic pressure readings, warning codes, or reduced excavator performance, so replacing it with this part restores normal operation.

Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.