Donaldson P550223 Hydraulic Filter

Hydraulic Filter Overview

Donaldson P550223 is a spin-on hydraulic filter built for hydraulic fluid filtration in heavy-duty equipment. It uses cellulose media and a threaded spin-on design for straightforward service in compatible applications.

Key Features

• Spin-on hydraulic filter design for serviceable hydraulic systems.
• Cellulose media for fluid filtration in demanding hydraulic circuits.
• Thread size: 1 5/16-12 UN.
• Outer diameter: 118.5 mm; length: 10.24 in.
• Gasket dimensions: 3.66 in ID and 107.6 mm OD.

Detailed Description

Donaldson P550223 is a hydraulic filter specified as a spin-on style with cellulose media, making it a practical replacement for hydraulic filtration service. The filter dimensions and thread specification support proper sealing and fit in applications that call for this configuration. This part cross-references Baldwin BT359 and Bosch 25010643 for the same application. For buyers searching for a Peterbilt 357 hydraulic filter, P550223 is listed for 1986-2000 Peterbilt 357, hydraulic filter, spin-on. Donaldson P550223 is also a relevant search term for service parts used on Peterbilt 357 equipment across the listed model years.

What It Is Used For

• Replacing a worn or restricted hydraulic filter element in a spin-on housing.
• Restoring hydraulic fluid flow through a serviceable filtration circuit.
• Addressing contamination-related pressure loss in hydraulic systems.
• Supporting routine maintenance on equipment that uses this filter specification.

Installation Notes and Tips

Verify thread size, gasket dimensions, and overall filter size before installation. Confirm the application against the equipment service information for the listed Peterbilt 357 fitment. Clean the mounting surface and check the sealing gasket during replacement to help prevent leaks.