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Donaldson · Filtration
P526504
In stock · ships from Knoxville
Donaldson P526504 is a heavy-duty safety air filter, also referred to as an inner or secondary filter.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 4 applications
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All confirmed applications for this part number.
Caterpillar
Ford
Other applications
Caterpillar
Ford
Other applications
Designed as a safety element for air cleaner housings specified with the cross-referenced OEM part numbers. Exact vehicle/equipment model lists are not available; verify against your equipment’s air filter housing dimensions and OEM part number.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 15 of 15.
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It installs inside the primary air filter housing to provide an extra layer of engine protection against dust and debris if the main filter fails or during service. Replacing this filter regularly, typically whenever the primary filter is changed, helps prevent engine wear and maintains reliable performance in demanding environments.
Part Number: P526504
AIR FILTER
Vendor: Donaldson
Dealer: Knox Trailers
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