Baldwin BT9388 Power Steering Filter
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Baldwin

Baldwin BT9388 Power Steering Filter

Brand Baldwin BT9388
Contains 20 psid by-pass valve
Fits "international thomas, buses; ford, freightliner, international,
Height 3 1/2
Height (mm) 88.9
Integral Gasket [1] included
Outside Diameter 1 2 21/32
Outside Diameter 1 (mm) 67.5
Per Inch 16
Replaces "ford f8hz-3c602-aa; freightliner t1808d, vmlt1808d; internationa
Thread 4-mar
Fits —

By-pass valve included. Built with a 20 PSID valve to help protect the steering system.

Integral gasket included. Helps simplify installation with a ready-to-use seal.

Power steering filter. Helps keep fluid cleaner for smoother system operation.

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Baldwin BT9388 Power Steering Filter

The Baldwin BT9388 is a power steering filter built for steering systems that need fluid cleanup and pressure control. It is specified for International Thomas buses and Ford, Freightliner, International, Sterling, and Western Star trucks, making it a direct-fit service part for a range of heavy-duty applications.

Key Features

  • Power steering filter for heavy-duty steering systems
  • 20 PSID by-pass valve for controlled flow when restriction increases
  • Integral gasket included for sealing at installation
  • 3 1/2 in. height, 2 21/32 in. outside diameter, 4-Mar thread
  • 88.9 mm height and 67.5 mm outside diameter for dimensional reference
  • Replaces Ford F8HZ-3C602-AA, Freightliner T1808D and VMLT1808D, and International 2503221-C1

Product Details

Baldwin BT9388 is a steering filter designed to help maintain cleaner power steering fluid in Ford truck, Freightliner truck, International truck, Sterling truck, and Western Star truck applications. The filter uses a 20 PSID by-pass valve to maintain flow when the element becomes restricted, while the integral gasket supports a proper seal during service. For buyers searching for a Baldwin BT9388 power steering filter, this part number is commonly referenced for International Thomas buses and related heavy-duty steering systems.

This part cross-references Ford F8HZ-3C602-AA and Freightliner T1808D for the same application.

What It Helps Address

  • Contaminated power steering fluid
  • Restricted steering fluid flow from a loaded filter
  • Steering noise related to fluid condition
  • Premature wear in steering system components
  • Service replacement needs on Ford truck and Freightliner truck steering systems

Installation Notes

Verify thread size, outside diameter, and height before installation. Confirm the filter matches the existing steering filter housing on International Thomas buses, Ford trucks, Freightliner trucks, International trucks, Sterling trucks, or Western Star trucks. Replace the filter during routine steering system service and inspect the sealing surface before tightening. Use clean fluid and follow the vehicle service procedure for bleeding the steering system after installation.

Quality Assurance

Baldwin filtration products are built for service applications where dimensional accuracy and flow control matter. BT9388 is identified by part number BT9388 and is specified with a 20 PSID by-pass valve, integral gasket, and published replacement references for OE-style service matching.

Related reading

This part fits 0 vehicles
Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.
YearMakeModelPositionNotes