Skip to product information
SKU:
ZZ3F06093
Same day shipping if ordered by 4PM CST.
Pump High Pressure Sensor 221-8859 Fit for Caterpillar 345D 385C 385C L Hyd
$66.09
In Stock
$66.09
Sale price
$66.09
Regular price
Part Number(s)
Estimated delivery between
Let Northline Parts Do the Heavy Lifting for You!
Not sure which part you need? Our team can help you find the right replacement.
Parts Support Hours: Monday–Friday, 8:00 AM–5:00 PM CT
Live Chat: Available 24/7
I reached out for some replacement head bolts and they responded quickly with a few questions and cautionary information and is sending me some bolts. Great customer service! Thanks
Edward H. — Verified customer
Compatible Models
We do our best to list all compatible models. Although this may be the part you need, your exact model may not appear below.
Compatible equipment / model
Pump High Pressure Sensor 221-8859 for Caterpillar 345D 385C 385C L Hyd
This pump high pressure sensor with OEM cross-reference number 221-8859 is designed for Caterpillar hydraulic systems. It accurately monitors pump output pressure for models 345D, 385C, and 385C L. This sensor supports stable machine operation by providing essential pressure data to the control system.
Overview
This pump high pressure sensor (221-8859) monitors hydraulic pressure in the pump circuit for Caterpillar excavators. It provides a reliable electrical signal corresponding to system pressure, aiding in precise control and diagnostics. This sensor is built for Caterpillar 345D, 385C, and 385C L models.
Built For Performance
- Utilizes a robust sensing element for consistent pressure readings
- Housed in a durable body resistant to vibration and thermal stress
- Features a standard electrical connector for straightforward installation
- Calibrated to provide accurate output across the operating pressure range
- Meets or exceeds original equipment specifications
Fits These Machines
- for Caterpillar 345D
- for Caterpillar 385C
- for Caterpillar 385C L
On-The-Job Use
- Commonly used in heavy excavation and demolition work
- Installed during hydraulic pump service or engine overhaul
- Essential for maintaining proper hydraulic function in demanding jobsite conditions
- Assists technicians in diagnosing pressure-related issues with onboard systems
Specs At A Glance
| Part Number(s) | 221-8859 |
| Type | Pump High Pressure Sensor |
| Compatible Brands | Caterpillar |
Good To Know
Q: Is this sensor a direct replacement for the original part? A: This sensor is designed to match the function and fit of the OEM part number 221-8859. It is intended for Caterpillar models as listed, but always confirm your machine's serial number before purchase.
Q: What happens if this sensor fails? A: A failing sensor can trigger warning codes or cause the machine to operate at reduced performance. Replacing it with this component helps ensure accurate pressure feedback and stable hydraulic operation.
Slight variation in finish or dimensions may occur between production runs, and fit can depend on serial number, so confirm compatibility before ordering.