Stock fuel lines - Diesel Truck Forum - TheDieselGarage.com
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post #1 of 3 (permalink) Old 02-06-2007, 03:04 AM Thread Starter
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Stock fuel lines

Are the stock hard fuel lines 3/8"?

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post #2 of 3 (permalink) Old 02-06-2007, 03:33 AM
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:shrug: i think so...but not sure

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post #3 of 3 (permalink) Old 02-06-2007, 03:51 AM
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It depends where you are talking about. The fuel pump has 5/16" QC fittings on it. I am not sure if the hard lines are 3/8 back there or not but the hard line from the fuel filter down to the steel braided hose by the oil cooler should be 3/8". The return should be 5/16" all the way from the tank to the regulator.

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