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Cylindrical hydraulic filter cartridge, metal end caps, 9 inches long

Baldwin Filters

Baldwin Filters PT538 Hydraulic Filter Element 9in

SKU CH-BS55-P0Q4S

A 9-inch hydraulic filter cartridge rated at 20 microns with attached end seals and a furnished gasket for International wheel tractors

  • Product typeAutomotive Filters
  • Cartridge design simplifies filter changes
  • 20 micron rating traps fine contaminants
  • 9 inch height fits specified housings
  • 4 27/32 inch diameter matches original equipment
  • Two attached end seals prevent bypass leakage

Baldwin PT538 Hydraulic Filter Element

The Baldwin PT538 is a hydraulic cartridge filter element designed for International wheel tractors. It carries a 20 micron rating to capture fine contaminants in the hydraulic circuit. The element measures 9 inches in height and length with an outside diameter of 4 27/32 inches. It ships new and ready for installation in compatible equipment.

Installation and Common Issues

Installation requires removing the used cartridge and fitting the new element into the existing housing using the two attached end seals. The furnished gasket must be seated correctly to prevent bypass leakage. A common issue occurs when the gasket is pinched or omitted during reassembly, allowing unfiltered fluid to circulate. Ensure the housing threads are clean before tightening to avoid cross-threading or seal damage.

Capacity and Service Limits

The 20 micron media provides effective particle retention for standard hydraulic systems on the specified tractors. The element handles normal operating flow and pressure until the media loads with captured debris. Service life ends when the pressure differential across the filter reaches the system bypass threshold, allowing unfiltered flow to protect components. Timely replacement restores full filtration efficiency and protects downstream valves and actuators.

How it compares

Measured against everything we stock in Yard Ornaments & Garden Statues, at today’s prices. Recalculated every night.

Price $35.99
Cheaper than about 56% of the 1,271 comparable items (median $40.99).

Specifications

Product
Brand nameBALDWIN FILTERS
Product typeAutomotive Filters

Questions about this item

How can I confirm the PT538 hydraulic filter is sealing correctly after installation?

Check that both attached end seals and the furnished gasket sit flush without gaps, then run the tractor and verify no fluid leaks appear at the filter housing.

What comes with the PT538 filter element and what must I supply?

The box contains the cartridge with two attached end seals and a furnished gasket; you must provide the compatible International wheel tractor and hydraulic fluid.

Which micron rating version of the PT538 should I select for my International wheel tractor?

This model carries a 20 micron rating; choose it when your tractor’s service manual specifies 20 micron filtration for the hydraulic system.

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