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Baldwin B252 Transmission Oil Filter

Brand	Baldwin B252
Contains	Anti-drainback valve;20 psid by-pass valve
Fits	Allison transmissions
Height	5 15/32
Height (mm)	138.9
Integral Gasket	{g401}
Outside Diameter 1	3 11/16
Outside Diameter 1 (mm)	93.7
Per Inch	16
Replaces	Gmc 25010441
Thread	4-mar
Fits	—

Anti-drainback valve. Helps keep oil in the filter for cleaner starts.

20 PSID by-pass valve. Maintains flow when the filter reaches restriction.

Integral gasket. Provides a secure seal for dependable filtration.

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Baldwin B252 Transmission Oil Filter for Allison Transmissions

The Baldwin B252 transmission oil filter is built for Allison transmissions and is specified with an anti-drainback valve and a 20 PSID by-pass valve. It is a direct-fit transmission oil filter solution for service work where clean fluid flow and proper filtration are critical. The B252 is also referenced by GMC 25010441 for the same application.

Key Features

Transmission oil filter for Allison transmissions
Includes an anti-drainback valve to help retain oil in the filter
20 PSID by-pass valve specification
Integral gasket: G401
Thread: 4-Mar
Outside diameter: 3 11/16 in. (93.7 mm)
Height: 5 15/32 in. (138.9 mm)
16 threads per inch
Replaces GMC 25010441

Detailed Description

Built for Allison transmission service, the Baldwin B252 transmission oil filter is engineered around the listed dimensions and sealing details for a precise service replacement. The anti-drainback valve helps keep the filter charged after shutdown, while the 20 PSID by-pass valve specification supports fluid flow when restriction increases. For buyers searching for a Baldwin B252 Allison transmission oil filter, this part number provides a straightforward match for maintenance and repair needs on Allison-equipped GMC applications.

What It Helps Address

Restricted transmission fluid flow caused by a loaded filter
Service replacement needs for Allison transmission filtration
Leak concerns related to an incorrect gasket or sealing surface
Fitment issues when replacing GMC 25010441
Transmission maintenance on Allison-equipped GMC vehicles

Installation Notes and Tips

Verify the filter dimensions, thread specification, and gasket reference before installation. Match the Baldwin B252 to the transmission service application and confirm the Allison transmission model against the vehicle service information. Clean the mounting surface thoroughly and inspect the sealing area before installing the new filter.

Quality Assurance

Baldwin manufactures filtration products for automotive and heavy-duty service applications, with specifications listed for direct identification and service matching. The B252 part number and OE reference help confirm the correct transmission oil filter for the intended Allison transmission application.

This part fits 0 vehicles

Always verify fitment with your vehicle's VIN if unsure. Submodel & trim restrictions may apply.

Year	Make	Model	Position	Notes
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