Baldwin P7505 Engine Oil Filter

Brand Baldwin P7505
Attached Gasket [1] attached
Contains Offset by-pass valve
Fits "freightliner cascadia, century class s/t, columbia, coronado, bu
Furnished Gasket [1] copper washer
Height 10 7/16
Height (mm) 265.1
Inside Diameter 1 2
Inside Diameter 1 (mm) 50.8
O-Ring [1] included
Outside Diameter 1 4 3/4
Outside Diameter 1 (mm) 120.7
Remark 2 One end
Replaces "detroit diesel a4721800109, a4721800309; mercedes-benz a47218003
Fits —

Offset by-pass valve. Helps regulate oil flow for consistent filtration performance.

Attached gasket. Simplifies service with a built-in sealing surface.

Copper washer included. Provides a reliable seal during installation.

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Baldwin P7505 Engine Oil Filter

The Baldwin P7505 is an engine oil filter for heavy-duty diesel applications that require a canister-style filter with an attached gasket, offset by-pass valve, and included O-ring. It is built for Freightliner Cascadia, Century Class S/T, Columbia, Coronado, and Business Class M2 trucks, as well as Sterling L-Line, L-Line 9500, and Western Star 4900EX, 4900FA, and 4900SA models with Detroit Diesel DD13, DD15, or DD16 engines.

Key Features

  • Engine oil filter for Detroit Diesel DD13, DD15, and DD16 applications
  • Attached gasket for direct sealing interface
  • Offset by-pass valve included in the filter assembly
  • One copper washer furnished
  • One O-ring included
  • 10 7/16 in. height, 4 3/4 in. outside diameter, 2 in. inside diameter
  • Direct replacement for Detroit Diesel A4721800109, A4721800309, Mercedes-Benz A4721800309, A4721840525, and Donaldson P551005

Detailed Description

Baldwin P7505 is an oil filter built for heavy-duty diesel service where proper oil filtration and sealing are critical. It is specified for Freightliner Cascadia, Century Class S/T, Columbia, Coronado, and Business Class M2 trucks, plus Sterling L-Line, L-Line 9500, and Western Star 4900EX, 4900FA, and 4900SA trucks equipped with Detroit Diesel DD13, DD15, or DD16 engines. The filter’s attached gasket, included O-ring, and furnished copper washer support a service-ready installation, while the offset by-pass valve matches the application requirements for these engines. Baldwin P7505 also cross-references Donaldson P551005 for the same application.

What It Helps Address

  • Restricted oil flow caused by a loaded or worn oil filter
  • Oil contamination from soot, debris, and wear particles
  • Sealing issues at the filter interface during service
  • Incorrect filter replacement on Detroit Diesel DD13, DD15, and DD16 engines
  • Downtime from using the wrong filter size or bypass configuration

Installation Notes and Tips

Verify engine family and filter dimensions before installation. Confirm the sealing surfaces are clean, replace the filter according to the service interval, and use the included gasket, O-ring, and copper washer as specified for the application. This part number, P7505, is intended for the listed Freightliner, Sterling, and Western Star truck applications with Detroit Diesel engines.

Quality Assurance

Baldwin filtration products are used in demanding commercial vehicle service environments and are built to meet the requirements of heavy-duty engine maintenance. Baldwin P7505 is a direct-fit replacement for the listed OE and aftermarket part numbers.

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