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Donaldson · Filtration
P550729
In stock · ships from Knoxville
This is a spin‑on fuel filter/water separator designed to remove solid particles and emulsified water from diesel fuel.
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Verified fitment for 1 applications
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All confirmed applications for this part number.
International
International
Listed as a direct replacement for Navistar/International applications. Cross‑references to Freightliner DNP550729 indicate possible use on some Freightliner trucks, but primary verified application is Navistar. Do not use in marine environments.
Part data verified against 5 catalog sources
Numbers this part supersedes or interchanges with. Showing 16 of 20.
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It protects injectors, pumps and other fuel‑system components from wear and corrosion. Normally replaced during scheduled fuel‑filter services or whenever water‑in‑fuel warnings appear. Not suitable for marine applications.
Part Number: P550729
FUEL FILTER, WATER SEPARATOR SPIN ON
Category: Donaldson- F
Dealer: Knox Trailers
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