Join Date: Sep 2007
Location: New Brunswick Canada
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Re: MD2030 Which Volvo Filter? 3581621 or 3840525
Filterfor oil is 3581621 and fuel is 3840525
You can get cross reference here.
VOLVO FUEL AND OIL FILTER CROSS REFERENCE - Cruisers & Sailing Forums
Hope that helps.
Oil filter should be changed at least once a year and fuel filter as well. if engine makes black smoke, it is sometimes because of blockage of fuel filter.
Ken J-mech (Diesel Mech)