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The BALDWIN FILTERS PT189 is a hydraulic filter designed for automotive and industrial hydraulic systems. It controls contamination in hydraulic fluid circuits by trapping particulates before they reach pumps, valves, and actuators. The PT189 measures 9.5 inches in height and 3.88 inches in width and length, and weighs 1.192 pounds. Licensed HVAC and fluid-power technicians, heavy equipment mechanics, and fleet maintenance professionals install this filter as a direct service replacement during scheduled hydraulic fluid maintenance intervals.
The PT189 is suited for hydraulic systems in automotive and heavy-duty equipment applications where a spin-on or cartridge-style hydraulic filter is required. It serves as a cross-reference replacement for several widely used OEM and aftermarket filter part numbers, making it a practical stocking choice for shops servicing mixed fleets or a variety of equipment brands.
The PT189 is confirmed compatible with the following cross-reference part numbers: ACDelco PF87, Caterpillar 2M3943, Donaldson P559740, Fleetguard LF555, GMC 6438419, Hastings LF335, Komatsu YM1656932630, Purolator P87, and Wix CW163MP.
Hydraulic filter replacement should be performed by a qualified mechanic or fluid-power technician following equipment manufacturer service intervals. Before servicing, relieve system pressure completely and ensure the hydraulic pump is shut down to prevent injury from pressurized fluid. Dispose of used hydraulic fluid and filters in accordance with local environmental regulations. Verify the replacement filter orientation and seating before returning the system to service.
We pulled together the parts most installs need for this unit, plus a few add-ons worth a look. Check what you need — nothing here blocks checkout.
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