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Old 12-01-2018, 10:50 PM   #1
Patestrickland
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Question Fuel Hose Size?

Hey guys Iím currently replacing my in-tank fuel pump and sending unit as the pump has died and the gas gauge doesnít work. While Iím dealing with the fuel pumps I thought I might as well replace the rubber fuel hoses that connect to the sending unit. Does anyone know the diameter of the 2 hoses? One hose deliveres fuel to the engine the other is the fuel return. Thanks.
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Old 12-01-2018, 10:55 PM   #2
smeha
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Not 100% maybe state which car and year just in case.
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Old 12-01-2018, 11:01 PM   #3
Patestrickland
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Gosh so sorry I can’t believe I forgot that part lol. It’s a 93 240
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Old 12-02-2018, 11:56 AM   #4
dbarton
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The main pump feed hose is 12 mm ID. I recommend using high pressure fuel injection hose. 7/16 inch will work if 12 mm becomes hard to find.

The return line is a rigid plastic hose, but if it need to be replaced you can reuse the barb fittings and put 8 mm ID hose on them with clamps.
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