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Blackmer · Hydraulics
903172
In stock · ships from Knoxville
This is a genuine Blackmer 3-inch pump bearing, used in several Blackmer sliding vane and positive displacement pump models.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 30 applications
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All confirmed applications for this part number.
Other applications
Other applications
This is a Blackmer pump component, not a heavy-duty truck/trailer chassis part. It fits the specific Blackmer pump models listed in the applications array, which are commonly found on tank trucks and industrial fluid-handling equipment. The part number 903172 is confirmed by multiple industrial pump distributors as the correct replacement bearing for these models.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 4 of 4.
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It supports the pump rotor shaft, keeping it aligned and reducing friction during operation. Over time, pump bearings can wear due to contamination, misalignment, or insufficient lubrication, leading to noise, vibration, or pump failure—replacing the bearing restores smooth, reliable performance. This is a component-level repair part, commonly replaced during a pump rebuild or when servicing common commercial and industrial pumps like the Blackmer X, XL, TX, and SGL series.
Part Number: 903172
3 BLACKMER PUMP BEARING
Unit: ea
Dealer: Post Onsite
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