Donaldson
The Donaldson P646646 is an industrial engine filter element manufactured by Donaldson. It measures 4.1" OD x 8.07" long. 4 verified cross-references are available from aftermarket manufacturers.
Request a Quote
Request a quote for this filter element.
4 Cross-References Available
See which OEM filters this product replaces.
Technical specifications for the Donaldson P646646 filter element. Data sourced from manufacturer catalogs and verified against OEM documentation.
| Specification | Value |
|---|---|
| O.D. (inches) | 4.1" |
| O.A.L. (inches) | 8.07" |
Last verified: February 2026
4 verified cross-references available. All cross-references are reviewed for dimensional and performance compatibility.
These are equipment manufacturer part numbers that the Donaldson P646646 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 P646646 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