Baldwin Filters PT459 Hydraulic Filter Element 2 1/16 in

Baldwin Filters PT459 hydraulic element

The Baldwin Filters PT459 is a cartridge-type hydraulic filter element designed for Cessna hydraulic systems as well as Massey Ferguson and New Holland equipment. It carries a micron rating of 20 and measures 2 1/16 in height and length with a 2 3/32 in outside diameter. The element is sold individually in new condition for hydraulic fluid filtration.

Check thread size and housing fit

This element has no thread size listed and is marked as not applicable for threading. Verify that your filter housing accepts a cartridge with a 23/32 in inside diameter and 2 3/32 in outside diameter before ordering. Confirm the 20 micron rating matches the filtration requirement specified by the equipment manufacturer. Ensure the housing seal design is compatible with a threadless cartridge.

Normal service pressure drop and flow

In normal hydraulic service the element provides a 20 micron barrier that creates a measurable pressure drop as it loads with contaminant. Flow capacity depends on the housing and pump output rather than the element alone. Monitor the system gauge for rising back-pressure which signals the element is nearing its dirt-holding limit. Replace the cartridge when the indicator shows restriction to maintain clean fluid and protect downstream components.