Donaldson P555776 Fuel Filter Water Separator Spin On Filter

The Donaldson P555776 is a spin-on fuel filter with an M90 x 2 thread, 4.65" (118 mm) across and 8.82" (224 mm) long.

That metric thread and can size line up with the Donaldson Blue secondary fuel filters on this site, so compare part numbers, not just the thread, when you replace it.

Donaldson P555776 Fuel Filter Water Separator Spin On Filter Specifications

• Donaldson part number: P555776
• Outer diameter: 118 mm (4.65 in)
• Length: 224 mm (8.82 in)
• Thread: M90 x 2

Common Uses for the Donaldson P555776

• Replacing another brand with the Donaldson equivalent
• Removing water from diesel before it reaches injectors

How to Choose the Right Donaldson Fuel Water Separator

• Change on your engine maker's schedule
• Match the Donaldson number on the old filter or in your service manual

Compare every option in our Vac Truck Filters collection.

Donaldson P555776 Fuel Filter Water Separator Spin On Filter FAQ

What are the dimensions of the Donaldson P555776?

Outer diameter: 118 mm (4.65 in); Length: 224 mm (8.82 in).

How do I know this Donaldson filter fits my truck?

Match the Donaldson part number on your old filter or in your engine or truck service manual. The cross-references on this page help if your old filter is another brand.

Can you put together a full service set?

Yes. Call 402-237-1914 with your truck and engine model and we will help you collect every filter you need.

Not sure which one fits your truck? Call 402-237-1914 (Mon to Fri, 7AM to 4PM) and talk to someone who has run the equipment.

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