Keep the fluid in your heavy-duty steering and driveline system clean with the Baldwin Spin-on Filter BT9388. This spin-on cartridge threads onto the filter head to trap contaminants circulating through the system, and it drops in as a direct-fit replacement across a wide range of Freightliner, International, IC Corporation, Sterling, Western Star and Ford heavy trucks and buses — including the 2008-2018 Freightliner Cascadia, 2002-2017 Freightliner M2 106 and 2002-2017 International 4300. With 661 applications, see the "Vehicles it fits" section for the full list.
- Spin-on design: threads directly onto the filter head for quick, tool-light service.
- 20 PSID by-pass valve: opens to maintain fluid flow if the filter media becomes restricted.
- Dimensions: 3/4-16 thread, 2 21/32 in (67.5 mm) OD, and 3 1/2 in (88.9 mm) height.
- Gasket included: ships with one gasket for the sealing surface.
Cataloged under both names — power steering filter and differential oil filter (Baldwin BFDG). Country of origin: United States.
Interchange: 25-1284 · F8HZ-3C602-AA · 2503221-C1
251284 · F8HZ3C602AA · 2503221C1 · 5751131F · 84191 · LFH4984 · P573482 · DO8044 · HF35448 · HF35476 · P8044 · T1808 · T1808B · T1808D · T1808F · T1808G · VMLT1808B · VMLT1808D · VMLT1808F · 6GHN0 · HF1007 · 2503221C3 · 7191 · 557191 · 57191
Product information is for general reference and may contain errors. See our Disclaimer.
This part cross-references / interchanges with the following part numbers:
25-1284, 5751131F, 84191, LFH4984, P573482, DO8044, HF35448, HF35476, F8HZ-3C602-AA, P8044, T1808, T1808B, T1808D, T1808F, T1808G, VMLT1808B, VMLT1808D, VMLT1808F, 6GHN0, HF1007, 2503221-C1, 2503221C3, 7191, 557191, 57191
Frequently Asked Questions
What does the Baldwin BT9388 do?
It's a spin-on filter that threads onto the filter head to trap contaminants in the fluid circulating through the system. It's cataloged as both a power steering filter and a differential oil filter.
Does the BT9388 include a gasket?
Yes. It ships with one included gasket for the sealing surface, per the catalog (I. Gskt. [1] Included).
What are the thread size and dimensions?
The BT9388 has a 3/4-16 thread, a 2 21/32 in (67.5 mm) outside diameter, and a 3 1/2 in (88.9 mm) height.
What is the 20 PSID by-pass valve for?
It contains a 20 PSID by-pass valve that opens to maintain fluid flow if the filter media becomes restricted, keeping fluid circulating through the system.
What vehicles does the BT9388 fit?
It fits a wide range of Freightliner, International, IC Corporation, Sterling, Western Star and Ford heavy trucks and buses across 661 applications. Check the "Vehicles it fits" section to confirm your exact vehicle.
