Donaldson
The Donaldson P646644 is an industrial engine filter element manufactured by Donaldson. 1 verified cross-reference is available from aftermarket manufacturers.
Request a Quote
Request a quote for this filter element.
1 Cross-Reference Available
See which OEM filters this product replaces.
1 verified cross-reference available. All cross-references are reviewed for dimensional and performance compatibility.
These are equipment manufacturer part numbers that the Donaldson P646644 is a verified replacement for. The original part numbers may appear on equipment nameplates, service manuals, or OEM parts catalogs.
Get specific part numbers for cross-references
Free cross-reference report. Usually within 24 hours.
Last verified: February 2026
The DONALDSON P646644 is designed for use in engine filtration systems including oil, fuel, air intake, and coolant applications.
250,000+ verified filter specifications
Quotes and answers within 24 hours
Real filtration specialists, not call centers