The Tank Strainer can normally be cleaned instead of replacing it but, it will need a new O-ring.

If your Fuel Outlet hose attached to the Tank Stariner has a crimped on Brass Collar and your Hose is old and needs replacing you can cut or filte off the Brass Collar and yank the hose and collar off. If you are using Diesel Fuel you can replace the Hose with SAW 30R7 Fuel Hose that is also rated for Diesel Fuel and is sold in just about any Auto Parts Store and a Hose clamp.

Replacing the Fuel Inlet Hoses under the hood also eliminates sources of Air leaks if the hoses are old as well as replacing the Old Style Aluminum Bodied Hand Primer if you have one.
If you have the old style Hand Primer replace it with a Bosch one as some members have had leaking problems with the Febi made ones and Bosch claims to have a Viton Seal inside; copies by other companies may not.

I doubt if there is a in Tank Electric Fuel Pump.

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84 300D, 82 Volvo 244Gl Diesel