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Donaldson · Filtration
P550866
In stock · ships from Knoxville
The Donaldson P550866 is a spin-on coolant filter that traps rust, scale, and debris while releasing supplemental coolant additives (SCA) to protect against corrosion, cavitation, and cylinder liner pitting.
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Verified fitment for 15 applications
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All confirmed applications for this part number.
Freightliner
International
Kenworth
Freightliner
International
Kenworth
Fits many heavy-duty diesel engines equipped with a spin‑on coolant filter base using an M36 x 2 thread. Additional applications may exist; check thread size and gasket dimensions.
Part data verified against 2 catalog sources
Numbers this part supersedes or interchanges with. Showing 6 of 6.
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It helps maintain proper heat transfer and prolongs water pump, radiator, and engine life. Replace it at the interval recommended by your engine or coolant manufacturer, or whenever the cooling system is serviced, to keep additive levels balanced and the coolant clean.
Part Number: P550866
COOLT SPNON 03.75X05.79 B12
Category: Donaldson- F
Dealer: KP Services Crossville
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