Two Donaldson Blue secondary fuel filters on one page: the Donaldson DBF6776 and the taller DBF5811. Both are spin-on final-stage fuel filters with an M90 x 2 thread, rated 99% efficient at 4 microns, which is the last line of defense before high-pressure injectors.
The difference is length. The DBF6776 is 8.82" tall with Synteq XP media; the DBF5811 is 11.69" tall. Both use a 4.65" can with a 4.69" x 4.02" gasket and a 149 psi rating.
Donaldson DBF6776 / DBF5811 Spin-On Fuel Filters Specifications
- Donaldson part number: DBF6776 / DBF5811
- DBF6776: 8.82 in long, 4.65 in OD, M90 x 2, 99% at 4 microns (SAE J1985), Synteq XP media
- DBF5811: 11.69 in tall, 4.65 in OD, M90 x 2, 99% at 4 microns
- Gasket OD/ID (both): 4.69 in / 4.02 in
- Rating (both): 149 psi
Donaldson DBF6776 Cross-Reference
Interchanges with: DBF6776: Cummins 5365988, Fleetguard FF5825NN, Baldwin BF46129, Luber-finer LFF6776XL, WIX WF10515.
Cross-references come from published interchange data. Check the number on the filter you are pulling or your service manual before installing.
Common Uses for the Donaldson DBF6776 / DBF5811
- Scheduled service on hydrovac, jetter and combo truck chassis
- Replacing another brand with the Donaldson equivalent
How to Choose the Right Donaldson Fuel Filter
- 2 part number choices, each with its own part number
- Use the cross-reference list when your old filter is another brand
Compare every option in our Vac Truck Filters collection.
Which Donaldson DBF6776 / DBF5811 Do I Need?
Measure the old filter or read its number. The two share a thread and gasket, so a filter that threads on is not proof it is the right length for your housing.
Donaldson DBF6776 / DBF5811 Spin-On Fuel Filters FAQ
What does the Donaldson DBF6776 cross-reference to?
It interchanges with Cummins 5365988, Fleetguard FF5825NN, Baldwin BF46129, Luber-finer LFF6776XL. Confirm against the number on your old filter.
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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