Your cart is empty
Browse our catalog to find the parts you need.
These images are illustrative and may not match the product exactly. Always verify by part number — or confirm instantly with the assistant using a photo or VIN.

Donaldson · Filtration
P550372
In stock · ships from Knoxville
The Donaldson P550372 is a spin-on diesel fuel filter built to remove harmful contaminants from your fuel system.
Confirm the part fits before you buy. Applications and interchange numbers are researched and audited per part.
Verified fitment for 2 applications
Add your truck to see whether it's one of them
All confirmed applications for this part number.
Other applications
Other applications
Primary fitment confirmed for Volvo FH12 D12C/D12B engines. The M18x1.5 thread and physical dimensions allow use on other diesel engines, but always verify compatibility with the engine or equipment manufacturer before installing.
Part data verified against 4 catalog sources
Numbers this part supersedes or interchanges with. Showing 6 of 6.
Different year, make, or config? Get a confirmation against your truck in under a minute.
It uses high-efficiency cellulose media that captures particles as small as 5 microns at 99% efficiency, helping protect injectors and injection pumps from premature wear. Replacing this filter at the recommended service intervals keeps fuel flowing cleanly and supports reliable engine performance. It is most often specified for Volvo FH12 trucks with D12C or D12B engines, but may fit other applications that accept a filter with an M18x1.5 thread and similar dimensions.
Part Number: P550372
FUEL FILTER
Vendor: Donaldson
Dealer: KP Services Crossville
Compatibility, alternatives, and more