Baldwin B5091 Cooling System Filter
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Baldwin

Baldwin B5091 Cooling System Filter

Brand Baldwin B5091
Attached Gasket {g401}
Fits Mack trucks
Height 5 13/32
Height (mm) 137.3
Outside Diameter 1 3 11/16
Outside Diameter 1 (mm) 93.7
Replaces Mack 20575545
Thread M16 x 1.5
Fits —

Cooling system filter. Helps keep coolant cleaner for more consistent system protection.

Attached gasket. Includes gasket G401 for a more complete sealing solution.

M16 x 1.5 thread. Threaded design for straightforward installation and removal.

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Baldwin B5091 Cooling System Filter for Mack Trucks

The Baldwin B5091 is a cooling system filter built for Mack Trucks applications that use an M16 x 1.5 thread and the included attached gasket reference G401. With a 5 13/32 in. height and 3 11/16 in. outside diameter, this filter is sized for direct replacement service in the cooling circuit.

Key Features

  • Brand: Baldwin
  • Part number: B5091
  • Cooling system filter for Mack Trucks
  • Thread size: M16 x 1.5
  • Height: 5 13/32 in. (137.3 mm)
  • Outside diameter: 3 11/16 in. (93.7 mm)
  • Attached gasket reference: G401
  • Replaces Mack 20575545

Detailed Description

Use the Baldwin B5091 when servicing Mack Trucks cooling systems that call for this filter specification. The listed dimensions, thread pitch, and gasket reference help match the filter to the correct housing and connection style, while the direct replacement reference to Mack 20575545 supports accurate parts lookup. If you are searching for a Mack Trucks cooling system filter, Baldwin B5091 is the part number to compare against the original application.

This part cross-references Mack 20575545 for the same application.

What It Is Used For

  • Replacing a cooling system filter with the correct thread and size
  • Addressing coolant filtration service on Mack Trucks
  • Matching an OE reference during maintenance or repair
  • Restoring proper fit when the original filter is worn or due for service

Installation Notes and Tips

Verify the housing thread is M16 x 1.5 before installation. Confirm the filter height and outside diameter against the existing unit, and check that the attached gasket reference G401 matches the application. For best results, compare the Mack Trucks part number and physical dimensions before final installation.

Quality Assurance

Baldwin manufactures filtration products for heavy-duty vehicle service, and the B5091 is identified with OE replacement reference Mack 20575545 for application matching.

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